Information Assurance Engineer jobs at ManTech

General information Requisition # R64665 Posting Date 12/05/2025 Security Clearance Required TS/SCI Remote Type Onsite Time Type Full time Description & Requirements Transform the future of federal services with MANTECH! Join a vibrant, energetic team committed to enhancing national security and public services through innovative tech. Since 1968, we've partnered with Federal Civilian sectors to deliver impactful solutions. Engage in exciting projects in Digital Transformation, Cybersecurity, IT, Data Analytics and more. Ignite your career and drive change. Your journey starts now-innovate and excel with MANTECH! MANTECH seeks a motivated, career and customer-oriented Senior Information System Security Officer (ISSO) to join our team in Quantico, VA. Responsibilities include, but are not limited to: * Ensure the day-to-day implementation, oversight, continuous monitoring, and maintenance of the security configuration, practices, and procedures for each IS and that selected security controls are implemented and operating as intended during all phases of the IS lifecycle * Provide liaison support between the system owner and other IS security personnel * Ensure that system security documentation is developed, maintained, reviewed, and updated on a continuous basis; Conduct required IS vulnerability scans according to risk assessment parameters * Manage the risks to ISs and other FBI assets by coordinating appropriate correction or mitigation actions and oversee and track the timely completion of (POAMs). Coordinate system owner concurrence for correction or mitigation actions * Monitor security controls for FBI ISs to maintain security Authorized to Operate (ATO); Upload all security control evidence to the Governance, Risk, and Compliance (GRC) application to support security control implementation during the monitoring phase * Ensure that changes to an FBI IS, its environment, and/or operational needs that may affect the authorization status are reported to the system owner and IS Security Manager (ISSM) * Ensure the removal and retirement of ISs being decommissioned in coordination with the system owner, ISSM, and ISSR; Working knowledge of the National Institute of Standards and Technology (NIST) Risk Management Framework (RMF) and ATO processes Minimum Qualifications: * Must meet one of the following levels of experience: A high school diploma/GED and 7 years' experience, a bachelor's degree in computer science cybersecurity or a related discipline and five years' experience, or a master's degree in computer science cybersecurity or a related discipline and 3 years' experience. * Hold at least one of the following Information Assurance Management (IAM) Level III certifications: Certified Information Systems Security Professional (CISSP), Global Information Security Professional (GISP), or the CompTIA Advanced Security Practitioner (CASP) or equivalent certifications * Familiarity with the use and operation of security tools including Tenable Nessus and/or Security Center, IBM Guardium, HP Weblnspect, Network Mapper (NMAP), and/or similar applications Preferred Qualifications: * A bachelor's or advanced degree in Computer Science, Cybersecurity, or other cyber discipline Clearance Requirements: * Must have a current/active Top Secret security clearance with eligibility to obtain SCI prior to starting this position. * Selected candidate must be willing to undergo a Polygraph. Physical Requirements: * Must be able to remain in a stationary position 50% * Needs to occasionally move about inside the office to access file cabinets, office machinery, etc. * Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer * Often positions self to maintain computers in the lab, including under the desks and in the server closet * Frequently communicates with co-workers, management and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations. MANTECH International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation. If you need a reasonable accommodation to apply for a position with MANTECH, please email us at ******************* and provide your name and contact information.

The Opportunity: As an expert in Information Warfare, specifically Information Operations or Operations in the Information Environment, you will provide daily on-site subject matter expertise to identify and assess how and why Air Force Information Operations will integrate with Air Force planning, execution, and assessment operational phases. You will use you background and expertise as an Air Force 14F, Information Operations Officer, or Service equivalent, to organize, coordinate, and perform Information Operations capability assessments. You will work as part of a team consisting of digital engineers, data scientists, operations researchers and analysts, and other operation subject matter experts to design, develop, and deliver purposeful analytical reports and engineering diagrams to communicate capability performance and plans to ensure the Air Force satisfies operational needs of the future. Join us. The world can't wait. You Have: 5+ years of experience as an Air Force 14F or Service equivalent involving Information Operations or Operations in the Information Environment Experience generating capabilities-based assessments (CBA), concept development, and Adaptive Acquisition Pathway requirements documents Experience facilitating large stakeholder working groups to conduct research, gather data, interpret data, and communicate findings Experience with generating research and data-informed assessments by performing quantitative and qualitative analysis Secret Clearance Bachelor's Degree Nice If You Have: Experience using Python to perform analysis Experience working with and informing digital engineers and systems engineers to develop capability architectures using DoDAF or UAF Master's Degree Clearance: Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information; Secret clearance is required. Compensation At Booz Allen, we celebrate your contributions, provide you with opportunities and choices, and support your total well-being. Our offerings include health, life, disability, financial, and retirement benefits, as well as paid leave, professional development, tuition assistance, work-life programs, and dependent care. Our recognition awards program acknowledges employees for exceptional performance and superior demonstration of our values. Full-time and part-time employees working at least 20 hours a week on a regular basis are eligible to participate in Booz Allen's benefit programs. Individuals that do not meet the threshold are only eligible for select offerings, not inclusive of health benefits. We encourage you to learn more about our total benefits by visiting the Resource page on our Careers site and reviewing Our Employee Benefits page. Salary at Booz Allen is determined by various factors, including but not limited to location, the individual's particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements. The projected compensation range for this position is $86,800.00 to $198,000.00 (annualized USD). The estimate displayed represents the typical salary range for this position and is just one component of Booz Allen's total compensation package for employees. This posting will close within 90 days from the Posting Date. Identity Statement As part of the application process, you are expected to be on camera during interviews and assessments. We reserve the right to take your picture to verify your identity and prevent fraud. Work Model Our people-first culture prioritizes the benefits of flexibility and collaboration, whether that happens in person or remotely. If this position is listed as remote or hybrid, you'll periodically work from a Booz Allen or client site facility. If this position is listed as onsite, you'll work with colleagues and clients in person, as needed for the specific role. Commitment to Non-Discrimination All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, local, or international law.

Information Systems Security Officer (ISSO) Job Category: Information TechnologyTime Type: Full time Minimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Local* * * The Opportunity: CACI is seeking an experienced and proactive Information Systems Security Officer to assist in the management our organization's information security efforts. The successful candidate will be responsible for developing, implementing, and maintaining a comprehensive information security program to protect our customer's data, systems, and networks from internal and external threats. Responsibilities: Prepare and update a Systems Security Plan that encompasses all aspects of all automated information systems utilized to support the program Oversee the implementation of information security policies, procedures, and best practices Verify all software and hardware installed and operated comply with the government's Security Certification Officer and COMM Program Security Officer (PSO) IAW the Program Security Plan Prepare and update the Equipment Security Certification Conduct regular risk assessments and security audits to identify vulnerabilities Design and implement security measures to protect against cyber threats, data breaches, and other security incidents Lead incident response efforts in case of security breaches or cyber attacks Establish and implement a continuous monitoring plan IAW the customer's Cyber Security Office guidance Maintain security approvals and accreditations IAW ICD 503 Provide integration and support associated with existing customer automated discovery network mapping activities and tools. Collaborate with IT and other departments to integrate security measures into all aspects of the organization Provide security awareness training to employees and stakeholders Stay up-to-date with the latest security trends, technologies, and threats Qualifications: Must have current TS/SCI with poly University Degree (BA/BS) or equivalent experience in a related field 7+ years of related work experience Profound understanding of the Defense Counterintelligence and Certified Information Systems Security Professional (CISSP) Information Systems Security Officer (ISSO) Relevant experience with IT service, cybersecurity, and/or Program Security Ability to work closely with government partners, security counterparts, program managers, and offices within the Intelligence Community and other defense industry partners to ensure successful execution of program activity. Ability to work closely with internal cross-functional teams (Directors, Program Managers, Project Managers and Contracting Officers) Customer and team oriented and able to function with limited supervision. Must have excellent verbal and written communications skills. Ability to implement strategic goals Establishes operational plans for technical area Develops and implements innovative products, processes, standards or operational plans This position is contingent on funding and may not be filled immediately. However, this position is representative of positions within CACI that are consistently available. Individuals who apply may also be considered for other positions at CACI. ________________________________________________________________________________________ What You Can Expect: A culture of integrity. At CACI, we place character and innovation at the center of everything we do. As a valued team member, you'll be part of a high-performing group dedicated to our customer's missions and driven by a higher purpose - to ensure the safety of our nation. An environment of trust. CACI values the unique contributions that every employee brings to our company and our customers - every day. You'll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality. A focus on continuous growth. Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground - in your career and in our legacy. Your potential is limitless. So is ours. Learn more about CACI here. ________________________________________________________________________________________ Pay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits. Learn more here. The proposed salary range for this position is: $86,600 - $181,800 CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.

SAIC accepts applications on an ongoing basis and there is no deadline. SAIC is a premier Fortune 500 mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, civilian and intelligence markets includes secure high-end solutions in mission IT, enterprise IT, engineering services and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives. We are approximately 24,000 strong; driven by mission, united by purpose, and inspired by opportunities. SAIC is an Equal Opportunity Employer. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.5 billion. For more information, visit saic.com. For ongoing news, please visit our newsroom. Bachelor's degree in Computer Science, Information Security, or a related field. Master's degree preferred Minimum of 5 years of experience in information security, with at least 3 years as an Information Systems Security Officer or similar role Strong knowledge of security frameworks and standards such as NIST, ISO 27001, and CIS Controls Hands-on experience with security technologies, including firewalls, IDS/IPS, SIEM, and endpoint protection Professional security certifications such as CISSP, CISM, CISA, or equivalent are highly preferred Qualified at the IAM Level II for the DoD Information Assurance Workforce, must possess one of the following certifications\: CompTIA Security+ or higher Extensive knowledge of NIST and DoD policies and procedures Excellent analytical, problem-solving, and decision-making skills Strong communication and interpersonal skills, with the ability to effectively communicate technical information to non-technical stakeholders Ability to work independently and manage multiple tasks and projects simultaneously SAIC is a premier Fortune 500 mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, civilian and intelligence markets include secure high-end solutions in mission IT, enterprise IT, engineering services and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives. SAIC is looking for an Information Systems Security Officer (ISSO) to support a highly dynamic and growing program with one of our US Government customers. You will be a part of a large multi-year contract that supports our customer in systems engineering and integration across a broad portfolio of projects. You will come into a program that enjoys a close working relationship with the customer, bringing exquisite technical expertise to bear on real world problems, helping the customer execute real world missions that impact National Security on a daily basis. This close relationship, along with the program's longevity (20 years), ensures that as a new team member you will find a depth of support to grow and develop that is unmatched, all while making a difference - daily. We need a highly motivated and experienced ISSO to support our cybersecurity initiatives and ensure the confidentiality, integrity, and availability of our information systems. The successful candidate will play a critical role in maintaining the security posture of our organization's IT infrastructure and ensuring compliance with applicable regulations and standards. The ISSO will work closely with the government client in establishing, certifying, and maintaining classified networks in support of the customer's intelligence enterprise. Key Responsibilities: Develop, implement, and maintain security policies, procedures, and controls in accordance with organizational objectives and regulatory requirements Conduct risk assessments and vulnerability assessments to identify and mitigate security risks Manage Risk Management Framework (RMF) activities in accordance with NIST and customer policies and procedures Monitor and analyze security alerts and incidents to identify potential threats and respond appropriately Enforce security controls and manage the deployment of security technologies such as firewalls, intrusion detection/prevention systems (IDS/IPS), and endpoint protection software Lead incident response efforts and coordinate with relevant stakeholders to resolve security incidents Prepare and maintain security documentation, including system security plans (SSPs), risk assessments, and security assessment reports (SARs) Conduct regular security audits and assessments to ensure compliance with industry standards and best practices Provide security training and awareness programs for staff to promote a culture of security within the organization Collaborate with IT and business units to implement security measures and ensure secure systems development and deployment

Information System Security Officer (ISSO) Job Category: Information TechnologyTime Type: Full time Minimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Local* * * Exciting Opportunity: Join Our Dynamic Cybersecurity Team as an Information Systems Security Officer (ISSO)! Are you passionate about cybersecurity and eager to make a significant impact? We are thrilled to announce an opening for a dedicated and detail-oriented Information Systems Security Officer (ISSO) to join our innovative cybersecurity team. In this role, you will play a pivotal part in our Continuous Monitoring program, ensuring alignment with Federal guidelines and standards. Why You'll Love This Role: As an ISSO, you will be at the forefront of protecting our information systems, contributing to a secure and compliant environment. You'll work with a talented team, leveraging your expertise in the Risk Management Framework (RMF) and NIST SP 800 series publications to enhance our security posture. Responsibilities: Implement and Maintain Continuous Monitoring: Develop and sustain a robust Continuous Monitoring program in line with RMF and NIST SP 800-137 guidelines. Conduct Security Assessments: Perform regular security assessments and vulnerability scans to identify and mitigate potential risks. Real-Time Monitoring: Keep a vigilant eye on security controls and their effectiveness, ensuring our systems remain protected around the clock. Trend Analysis: Analyze security-related data to spot trends and emerging threats, allowing us to stay one step ahead. Documentation: Prepare and maintain comprehensive documentation for security status reporting, ensuring transparency and compliance. Collaborative Remediation: Work closely with system owners and stakeholders to address security findings and implement effective remediation plans. System Security Plans: Assist in creating and updating System Security Plans (SSPs) and other essential RMF documentation. ATO Support: Provide vital support for the Authorization to Operate (ATO) process, ensuring our systems meet all necessary standards. Stay Current: Keep abreast of the latest cybersecurity threats, technologies, and compliance requirements to continually enhance our defenses. Incident Response: Participate in incident response activities, helping to swiftly address and resolve security incidents. Qualifications: Required: Clearance: An active TS/SCI with Polygraph. Experience: BS/BA or equivalent experience and a minimum of 7 years in a related field. Specialized Experience: 2-5 years in information security, with a strong focus on continuous monitoring and RMF. Certifications: Relevant certifications such as Security+, CISSP, CISM, or CAP. Knowledge: In-depth understanding of NIST SP 800 series publications, especially SP 800-37, SP 800-53, and SP 800-137. Regulations: Familiarity with Federal information security regulations and guidelines (e.g., FISMA, FedRAMP). Tools: Experience with security tools like vulnerability scanners, SIEM systems, and GRC platforms. Skills: Strong analytical and problem-solving skills, coupled with excellent written and verbal communication abilities. Team Player: Ability to work effectively in a team environment and collaborate with various stakeholders. Desired: Government Experience: Experience in a government or government contractor environment. Automation: Familiarity with automation tools for continuous monitoring processes. Tenable: Experience with Tenable. Splunk: Experience with Splunk. Qmulos Q-Audit: Experience with Qmulos Q-Audit. Why Join Us? This position is crucial in maintaining the security posture of our information systems and ensuring compliance with Federal cybersecurity requirements. As an ISSO, you will be an integral part of our organization's risk management strategy, helping to protect critical assets from evolving cyber threats. Ready to Make a Difference? Apply now and take the next step in your cybersecurity career with us! - ________________________________________________________________________________________ What You Can Expect: A culture of integrity. At CACI, we place character and innovation at the center of everything we do. As a valued team member, you'll be part of a high-performing group dedicated to our customer's missions and driven by a higher purpose - to ensure the safety of our nation. An environment of trust. CACI values the unique contributions that every employee brings to our company and our customers - every day. You'll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality. A focus on continuous growth. Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground - in your career and in our legacy. Your potential is limitless. So is ours. Learn more about CACI here. ________________________________________________________________________________________ Pay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits. Learn more here. The proposed salary range for this position is: $103,800 - $218,100 CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.

Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local * * * **Exciting Opportunity: Join Our Dynamic Cybersecurity Team as an Information Systems Security Officer (ISSO)!** Are you passionate about cybersecurity and eager to make a significant impact? We are thrilled to announce an opening for a dedicated and detail-oriented Information Systems Security Officer (ISSO) to join our innovative cybersecurity team. In this role, you will play a pivotal part in our Continuous Monitoring program, ensuring alignment with Federal guidelines and standards. **Why You'll Love This Role:** As an ISSO, you will be at the forefront of protecting our information systems, contributing to a secure and compliant environment. You'll work with a talented team, leveraging your expertise in the Risk Management Framework (RMF) and NIST SP 800 series publications to enhance our security posture. **Responsibilities:** + **Implement and Maintain Continuous Monitoring:** Develop and sustain a robust Continuous Monitoring program in line with RMF and NIST SP 800-137 guidelines. + **Conduct Security Assessments:** Perform regular security assessments and vulnerability scans to identify and mitigate potential risks. + **Real-Time Monitoring:** Keep a vigilant eye on security controls and their effectiveness, ensuring our systems remain protected around the clock. + **Trend Analysis:** Analyze security-related data to spot trends and emerging threats, allowing us to stay one step ahead. + **Documentation:** Prepare and maintain comprehensive documentation for security status reporting, ensuring transparency and compliance. + **Collaborative Remediation:** Work closely with system owners and stakeholders to address security findings and implement effective remediation plans. + **System Security Plans:** Assist in creating and updating System Security Plans (SSPs) and other essential RMF documentation. + **ATO Support:** Provide vital support for the Authorization to Operate (ATO) process, ensuring our systems meet all necessary standards. + **Stay Current:** Keep abreast of the latest cybersecurity threats, technologies, and compliance requirements to continually enhance our defenses. + **Incident Response:** Participate in incident response activities, helping to swiftly address and resolve security incidents. **Qualifications:** _Required:_ + **Clearance:** An active TS/SCI with Polygraph. + **Experience:** BS/BA or equivalent experience and a minimum of 7 years in a related field. + **Specialized Experience:** 2-5 years in information security, with a strong focus on continuous monitoring and RMF. + **Certifications:** Relevant certifications such as Security+, CISSP, CISM, or CAP. + **Knowledge:** In-depth understanding of NIST SP 800 series publications, especially SP 800-37, SP 800-53, and SP 800-137. + **Regulations:** Familiarity with Federal information security regulations and guidelines (e.g., FISMA, FedRAMP). + **Tools:** Experience with security tools like vulnerability scanners, SIEM systems, and GRC platforms. + **Skills:** Strong analytical and problem-solving skills, coupled with excellent written and verbal communication abilities. + **Team Player:** Ability to work effectively in a team environment and collaborate with various stakeholders. _Desired:_ + **Government Experience:** Experience in a government or government contractor environment. + **Automation:** Familiarity with automation tools for continuous monitoring processes. + **Tenable:** Experience with Tenable. + **Splunk:** Experience with Splunk. + **Qmulos Q-Audit:** Experience with Qmulos Q-Audit. **Why Join Us?** This position is crucial in maintaining the security posture of our information systems and ensuring compliance with Federal cybersecurity requirements. As an ISSO, you will be an integral part of our organization's risk management strategy, helping to protect critical assets from evolving cyber threats. **Ready to Make a Difference?** Apply now and take the next step in your cybersecurity career with us! - **________________________________________________________________________________________** **What You Can Expect:** **A culture of integrity.** At CACI, we place character and innovation at the center of everything we do. As a valued team member, you'll be part of a high-performing group dedicated to our customer's missions and driven by a higher purpose - to ensure the safety of our nation. **An environment of trust.** CACI values the unique contributions that every employee brings to our company and our customers - every day. You'll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality. **A focus on continuous growth.** Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground - in your career and in our legacy. **Your potential is limitless.** So is ours. Learn more about CACI here. (************************************************ **________________________________________________________________________________________** **Pay Range** : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits. Learn more here (***************************************************** . The proposed salary range for this position is: $103,800 - $218,100 _CACI is_ _an Equal Opportunity Employer._ _All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any_ _other protected characteristic._

Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local * * * Exciting Opportunity: Join Our Dynamic Cybersecurity Team as an Information Systems Security Officer (ISSO)! Are you passionate about cybersecurity and eager to make a significant impact? We are thrilled to announce an opening for a dedicated and detail-oriented Information Systems Security Officer (ISSO) to join our innovative cybersecurity team. In this role, you will play a pivotal part in our Continuous Monitoring program, ensuring alignment with Federal guidelines and standards. Why You'll Love This Role: As an ISSO, you will be at the forefront of protecting our information systems, contributing to a secure and compliant environment. You'll work with a talented team, leveraging your expertise in the Risk Management Framework (RMF) and NIST SP 800 series publications to enhance our security posture. Responsibilities: * Implement and Maintain Continuous Monitoring: Develop and sustain a robust Continuous Monitoring program in line with RMF and NIST SP 800-137 guidelines. * Conduct Security Assessments: Perform regular security assessments and vulnerability scans to identify and mitigate potential risks. * Real-Time Monitoring: Keep a vigilant eye on security controls and their effectiveness, ensuring our systems remain protected around the clock. * Trend Analysis: Analyze security-related data to spot trends and emerging threats, allowing us to stay one step ahead. * Documentation: Prepare and maintain comprehensive documentation for security status reporting, ensuring transparency and compliance. * Collaborative Remediation: Work closely with system owners and stakeholders to address security findings and implement effective remediation plans. * System Security Plans: Assist in creating and updating System Security Plans (SSPs) and other essential RMF documentation. * ATO Support: Provide vital support for the Authorization to Operate (ATO) process, ensuring our systems meet all necessary standards. * Stay Current: Keep abreast of the latest cybersecurity threats, technologies, and compliance requirements to continually enhance our defenses. * Incident Response: Participate in incident response activities, helping to swiftly address and resolve security incidents. Qualifications: Required: * Clearance: An active TS/SCI with Polygraph. * Experience: BS/BA or equivalent experience and a minimum of 7 years in a related field. * Specialized Experience: 2-5 years in information security, with a strong focus on continuous monitoring and RMF. * Certifications: Relevant certifications such as Security+, CISSP, CISM, or CAP. * Knowledge: In-depth understanding of NIST SP 800 series publications, especially SP 800-37, SP 800-53, and SP 800-137. * Regulations: Familiarity with Federal information security regulations and guidelines (e.g., FISMA, FedRAMP). * Tools: Experience with security tools like vulnerability scanners, SIEM systems, and GRC platforms. * Skills: Strong analytical and problem-solving skills, coupled with excellent written and verbal communication abilities. * Team Player: Ability to work effectively in a team environment and collaborate with various stakeholders. Desired: * Government Experience: Experience in a government or government contractor environment. * Automation: Familiarity with automation tools for continuous monitoring processes. * Tenable: Experience with Tenable. * Splunk: Experience with Splunk. * Qmulos Q-Audit: Experience with Qmulos Q-Audit. Why Join Us? This position is crucial in maintaining the security posture of our information systems and ensuring compliance with Federal cybersecurity requirements. As an ISSO, you will be an integral part of our organization's risk management strategy, helping to protect critical assets from evolving cyber threats. Ready to Make a Difference? Apply now and take the next step in your cybersecurity career with us! * ________________________________________________________________________________________ What You Can Expect: A culture of integrity. At CACI, we place character and innovation at the center of everything we do. As a valued team member, you'll be part of a high-performing group dedicated to our customer's missions and driven by a higher purpose - to ensure the safety of our nation. An environment of trust. CACI values the unique contributions that every employee brings to our company and our customers - every day. You'll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality. A focus on continuous growth. Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground - in your career and in our legacy. Your potential is limitless. So is ours. Learn more about CACI here. ________________________________________________________________________________________ Pay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits. Learn more here. The proposed salary range for this position is: $103,800 - $218,100 CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.

The most security-conscious organizations trust Telos Corporation to protect their vital IT assets. The reputation of our company rests on the quality of our solutions and the integrity of our people. Explore what you can bring to our solutions in the areas of cyber, cloud and enterprise security. Be a part of the Telos culture and see what sets us apart! Telos offers an excellent compensation package with benefits that include generous paid time off, medical, dental, vision, tuition reimbursement, and 401k. Our employees enjoy more than just a great work environment! This position is contingent on contract award. This position will be based at Virginia Beach, VA. Responsibilities: The Engineer, Cybersecurity II provides advanced cybersecurity engineering support across Navy systems under the Naval Surface Warfare Center Dahlgren Division (NSWCDD). This role integrates cybersecurity requirements throughout the systems engineering lifecycle, supporting both afloat and ashore networks. The position contributes to system design, risk management, and cyber resilience initiatives aligned with DoD and NAVSEA standards. Cyber Engineering and Analysis: * Conduct system and software engineering analyses to ensure compliance with cybersecurity standards and best practices. * Support Risk Management Framework (RMF) activities by developing and maintaining technical artifacts, assessment documentation, and ATO packages. * Review and support the implementation of Security Technical Implementation Guides (STIGs) and vulnerability remediation processes. * Perform configuration management of cybersecurity baselines, ensuring changes to system design maintain compliance with RMF and NIST SP 800-53 controls. * Apply system hardening techniques and zero-trust security principles across operating systems, applications, and network devices. * Analyze and support interconnection security agreements (ISAs) and ensure compliance within approved Authorization boundaries. * Utilize and support cybersecurity assessment tools including ACAS, STIG Viewer, eMASS, and Security Compliance Checker. System Life-Cycle Security: * Participate in the design and implementation of secure systems architecture, providing cybersecurity engineering input from concept through sustainment. * Conduct risk and vulnerability assessments for systems undergoing upgrades or changes, including penetration and regression testing. * Support secure coding practices and software assurance reviews to detect and mitigate exploitable flaws. * Contribute to development and documentation of cybersecurity procedures, security plans, and network diagrams. * Assist in hardware and software patch management, version control, and baseline integrity monitoring. Operations & Maintenance * Provide system administration support for Windows, Linux, and network environments, ensuring cybersecurity compliance. * Execute cybersecurity best practices during lab and field operations, including monitoring, incident response coordination, and risk reporting. * Maintain technical documentation, POA&Ms, and audit trails in support of cybersecurity posture tracking. Job Requirements Qualifications: Education: Bachelor's degree in Cybersecurity, Cyber Operations, Cyber Engineering, Information System, Information Technology, Computer, Electrical, or Electronics Engineering, Software Engineering, Computer Science, Mathematics with a concentration in Computer Science, or equivalent to above disciplines. Certification: * DoD 8570.01-M in accordance with (IAW) DFARS ************ Baseline Certification, minimum IAT Level II. Experience: * Five (5) year of full-time professional experience performing system hardening with demonstrated * experience in the following areas: Experience supporting Navy, NAVSEA, or DoD cybersecurity programs. * Proficiency with DISA STIGs, eMASS, ACAS, Nessus, and RMF documentation. * Knowledge of system hardening, zero-trust frameworks, and cross-domain security solutions. * Working knowledge of NIST SP 800-37, 800-53, and 800-160 cybersecurity engineering standards. * Hands-on experience with Windows Server, Linux, and network device administration. * Strong technical writing and documentation skills for cybersecurity deliverables (CDRLs, POA&Ms, risk assessments, etc.). Desired Attributes: * Detail-oriented with a systems-thinking approach to cybersecurity. * Strong communication and collaboration skills to work across engineering and program teams. * Demonstrated ability to balance mission assurance, security compliance, and system performance. The successful candidate must meet eligibility requirements to access sensitive information, which requires US citizenship. Telos maintains a drug-free workplace and will conduct drug testing on all applicants who have accepted an offer of employment. Telos Corporation participates in the E-Verify program. Therefore, any employment with Telos will also be contingent upon confirmation from the Social Security Administration ("SSA") and/or the Department of Homeland Security ("DHS") of your authorization to work in the United States. Telos offers excellent compensation packages including salary commensurate with experience and benefits to meet your needs for today and the future. Telos Corporation and its subsidiaries are committed to equal opportunity for all, without regard to race, religion, color, national origin, citizenship, sex, sexual orientation, gender identity, age, veteran status, disability, genetic information, or any other protected characteristic. Telos Corporation will make reasonable accommodations for known physical or mental limitations of otherwise qualified employees and applicants with disabilities unless the accommodation would impose an undue hardship on the operation of our business. If you are interested in applying for an employment opportunity and feel you need a reasonable accommodation pursuant to the ADA, please contact us at **************. If you require relay service assistance, please click on the following link to review information on your state's relay service: ********************************** Telos Corporation is an EEO/AA employer. Job Type Full-Time Location Virginia Beach, VA 23461 US (Primary) Telos offers an excellent compensation packages including salary commensurate with experience and benefits to meet your needs for today and the future. Telos and its subsidiaries are an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.

BAE Systems is looking for experienced ISSEs. You will work closely with other teams, including network engineers, data engineers, and sponsor personnel to obtain A&A accreditation. You will work together with the Sponsor to create the visualization specifications for the system monitoring and system metrics. You will create and document necessary artifacts such as the Configuration Management Plan, Data Management Plan, and CONOPS. You will advise and assist the Sponsor with development of System Security Plans. You will monitor, track, and update status of systems in the assessment queue. You will coordinate technical security assessments of computing environments and systems to identify points of vulnerability, non-compliance with established Information Assurance (IA) standards and regulations, and recommend mitigation strategies. Required Education, Experience, & Skills * Demonstrated experience with Sponsor A&A processes * Demonstrated experience creating and reviewing documentation related to System Security Plans, or Body of Evidence (BOE) documentation. Preferred Education, Experience, & Skills * Demonstrated experience developing interactive dashboards and reports using data visualization tools * Demonstrated experience developing using REST Web services * Demonstrated experience or familiarity with Red Hat, CentOS, or Rocky * Demonstrated experience with web application development * Demonstrated experience designing, developing, implementing, or integrating IA and security systems and system components (such as those for networking, virtualization, cloud, and enclave environments to include those with with differing data protection requirements). * Cloud certification(s) Pay Information Full-Time Salary Range: $146670 - $249330 Please note: This range is based on our market pay structures. However, individual salaries are determined by a variety of factors including, but not limited to: business considerations, local market conditions, and internal equity, as well as candidate qualifications, such as skills, education, and experience. Employee Benefits: At BAE Systems, we support our employees in all aspects of their life, including their health and financial well-being. Regular employees scheduled to work 20+ hours per week are offered: health, dental, and vision insurance; health savings accounts; a 401(k) savings plan; disability coverage; and life and accident insurance. We also have an employee assistance program, a legal plan, and other perks including discounts on things like home, auto, and pet insurance. Our leave programs include paid time off, paid holidays, as well as other types of leave, including paid parental, military, bereavement, and any applicable federal and state sick leave. Employees may participate in the company recognition program to receive monetary or non-monetary recognition awards. Other incentives may be available based on position level and/or job specifics. About BAE Systems Intelligence & Security BAE Systems, Inc. is the U.S. subsidiary of BAE Systems plc, an international defense, aerospace and security company which delivers a full range of products and services for air, land and naval forces, as well as advanced electronics, security, information technology solutions and customer support services. Improving the future and protecting lives is an ambitious mission, but it's what we do at BAE Systems. Working here means using your passion and ingenuity where it counts - defending national security with breakthrough technology, superior products, and intelligence solutions. As you develop the latest technology and defend national security, you will continually hone your skills on a team-making a big impact on a global scale. At BAE Systems, you'll find a rewarding career that truly makes a difference. Intelligence & Security (I&S), based in McLean, Virginia, designs and delivers advanced defense, intelligence, and security solutions that support the important missions of our customers. Our pride and dedication shows in everything we do-from intelligence analysis, cyber operations and IT expertise to systems development, systems integration, and operations and maintenance services. Knowing that our work enables the U.S. military and government to recognize, manage and defeat threats inspires us to push ourselves and our technologies to new levels. This position will be posted for at least 5 calendar days. The posting will remain active until the position is filled, or a qualified pool of candidates is identified.

BAE Systems, a top-ten prime contractor to the U.S. Department of Defense, enables the U.S. government to transform data into intelligence and provides engineering, integration and sustainment support for critical military platforms and systems. Intelligence & Security provides services and products to the Department of Defense, the government, federal law enforcement officials, and troops deployed around the world. At BAE Systems, we promote a strong, collaborative culture and provide our employees with the tools, skills and training they need to succeed. We are all about trust, camaraderie and a shared ambition to lead the world in defense technologies and national security services. We offer flexible work environment to support the balance in your life and keep you performing at your best. Be a part of a company that is part of the community; driven to improve our future and protect our freedom. We are looking for experienced Cyber Security Engineers to join our technology-based program supporting a key government customer. This program will deliver engineering services for network infrastructure as well as sophisticated enterprise computing infrastructure including end-point devices, data center hosted servers, multi-Cloud services as well as virtualized applications, and storage systems. Enterprise Computing Engineering services include modern application technology including containerized solutions with orchestrated workflow that function both on customer premise, and via remote Cloud services. Network infrastructure engineering services are comprised of core infrastructure, voice and video engineering, field engineering, application management and development for networks, network analytics, firewalls, network access controls and bandwidth service delivery. This is a fast paced, challenging, and career rewarding experience to provide solutions on one of the most complex and high-profile programs within the government. ABC \#LI-DDUNN **Required Education, Experience, & Skills** We are actively seeking an Information Systems Security Engineer (ISSE) with a minimum of 11 years' experience with a Bachelor's Degree. Other degrees will be considered with the year's experience adjusted to accommodate. We are looking for a candidate with specific skills that may include the following: + Implementation and validation of security controls that support the Risk Management Framework (RMF) and ICD 503 Security Accreditation + Developing architecture documentation and Systems Security Plans (SSP) to support Accreditation and Authorization (A&A) reviews + POA&M development and implementation + Coordinating with customer security organizations to achieve Authority to Operate (ATO). + Knowledge of the complex environment involving shared networks and multiple security enclaves + Engineering for Cyber engineering and integration services including security, authentication, identity management, authorization, and access control engineering. + Self-starter able to work independently and build relationships with technical reps across divisions, comfortable with cyber security and able to brief issues to the customer + Over 5 years of experience working on Government Agency enterprise infrastructure and engineering programs. **Preferred Education, Experience, & Skills** + Nessus / Rapid7 + Security Development and Operations (SecDevOps) + Various security tools and processes such as Splunk, Nessus Security Center, WebInspect, Xacta + Cloud security controls and implementation + STIG compliance and vulnerability management + CISSP + AWS Certified Security Specialty + Microsoft Office365 + Experience in one or more software products associated with cyber system engineering for data analytics including SQL security, TANIUM Endpoint Management Software, Powershell, MacAfee, App Blocker, Splunk ITSI. + Experience with one or more software development environments supporting commercial or open source tools including but not limited to: Linux, Python, C, Bash Scripting, Perl, SQL, Splunk Phantom, UBA, and UIPath + Experience in one or more cloud computing services and technologies including but not limited to: AWS/C2S, Microsoft Azure, Nutanix, VMware. **Pay Information** Full-Time Salary Range: $146670 - $249330 Please note: This range is based on our market pay structures. However, individual salaries are determined by a variety of factors including, but not limited to: business considerations, local market conditions, and internal equity, as well as candidate qualifications, such as skills, education, and experience. Employee Benefits: At BAE Systems, we support our employees in all aspects of their life, including their health and financial well-being. Regular employees scheduled to work 20 hours per week are offered: health, dental, and vision insurance; health savings accounts; a 401(k) savings plan; disability coverage; and life and accident insurance. We also have an employee assistance program, a legal plan, and other perks including discounts on things like home, auto, and pet insurance. Our leave programs include paid time off, paid holidays, as well as other types of leave, including paid parental, military, bereavement, and any applicable federal and state sick leave. Employees may participate in the company recognition program to receive monetary or non-monetary recognition awards. Other incentives may be available based on position level and/or job specifics. **Information Security Systems Engineer - Expert** **119131BR** EEO Career Site Equal Opportunity Employer. Minorities . females . veterans . individuals with disabilities . sexual orientation . gender identity . gender expression

General information Requisition # R63748 Posting Date 10/15/2025 Security Clearance Required TS/SCI w/ Poly Remote Type Onsite Time Type Full time Description & Requirements Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we've been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now-unleash your potential with MANTECH! ManTech seeks a motivated, career and customer-oriented Cyber Network Defense Analyst in Herndon, VA. As a CND Analyst on our team, you will use your expertise in specialized network defense to provide innovative and creative solutions to challenging cyber security problems. You will utilize the latest cyber tools available and assist with creating new ones while allowing you to advance the nation's information security posture. Responsibilities include, but are not limited to: * Provide malicious code detection, intrusion detection, and information security tool development and integration. * Utilize forensic analysis to identify malware, misuse, and/or unauthorized activity. * Analyze all data sources, including Internet, Intelligence Community (IC) reporting, security events, firewall logs, and other data sources to identify malware, misuse, unauthorized activity or other cyber security related concerns. * Track intelligence using open source and classified sources to identify malicious code threats and provide solutions to counteract that threat. * Identify gaps in visibility or coverage of cyber defense systems. * Prepare data analytics and reporting. Minimum Qualifications: * High School Diploma and 15+ years of experience in a cyber security or network security role, or Bachelor's degree in a technical field with 11+ years of experience * Experience writing script in programming languages such as Python, JavaScript, Yara or Snort * Experience using Splunk, Elasticsearch or similar tools for case development and application * Experience with network security applications, protocols, and associated hardware * Experience with one or more of the following classes of enterprise cyber defense technologies: Host based IDS and IPS, Network and host-based malware detection and prevention Preferred Qualifications: * Experience with AWS infrastructure, tools and/or services * Experience working with MITRE ATT&CK Clearance Requirements: * Must have an active/Current TS/SCI with polygraph MANTECH International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation. If you need a reasonable accommodation to apply for a position with MANTECH, please email us at ******************* and provide your name and contact information.

BAE Systems, a top-ten prime contractor to the U.S. Department of Defense, enables the U.S. government to transform data into intelligence and provides engineering, integration and sustainment support for critical military platforms and systems. Intelligence & Security provides services and products to the Department of Defense, the intelligence community, federal law enforcement officials, and troops deployed around the world. At BAE Systems, we promote a strong, collaborative culture and provide our employees with the tools, skills and training they need to succeed. We are all about trust, camaraderie and a shared ambition to lead the world in defense technologies and national security services. We offer flexible work environment to support the balance in your life and keep you performing at your best. Be a part of a company that is part of the community; driven to improve our future and protect our freedom. We are looking for an ISSE to join our technology-based program supporting a key government customer. This program will deliver engineering services for network infrastructure as well as sophisticated enterprise computing infrastructure including end-point devices, data center hosted servers, multi-Cloud services as well as virtualized applications, and storage systems. Enterprise Computing Engineering services include modern application technology including containerized solutions with orchestrated workflow that function both on customer premise, and via remote Cloud services. Network infrastructure engineering services are comprised of core infrastructure, voice and video engineering, field engineering, application management and development for networks, network analytics, firewalls, network access controls and bandwidth service delivery. #LI-KW2 Required Education, Experience, & Skills We are actively seeking Cyber Security Systems Engineers with a minimum of 6 years' experience. This opportunity is supporting the customer's Division level A&A projects which has several Branches within it. The A&A projects are therefore at various levels within the customer organization depending upon which team is responsible for initial development and accreditation vs. long term Operations and Maintenance support. Bachelor's or Master's Degree are preferred in one or more discipline, but can be waived if previous direct ISSE support to this customer's agency. Specific skills include the following: * Possess multi-tasking skills, as well as be a good communicator/facilitator. Comfortable at all levels from developer to senior staff. * Knowledge of the complex network environments involving shared networks and multiple security enclaves. * Possess the ability to bridge the technical implementation (i.e. developer talk), into commonly understood security words. Often this is a skillset and is not an actual language, but frequently translation or a basic understand needs to be conveyed by the ISSE when speaking with others or in writing the documentation in order to ensure it's easy to understand. * Document the various security control implementations as well as gather the artifacts that support the Risk Management Framework (RMF) and ICD 503 Security Accreditation for various Assessment and Authorization (A&A) efforts * Document and obtain a general understanding of the architecture being developed or that was developed for each project in order to write the Systems Security Plans (SSP)/CONOPS in the Xacta application. * Gather the information by working with various team members in order to write various additional A&A related documents such as Contingency Plan (CP), General User Guide (GUG), Privileged User Guide (PUG), Standard Operating Procedures (SOP's), etc. * Support Accreditation and Authorization (A&A) reviews by ISSO/M, as well as the Security Controls Assessor (SCA) * Document the Plans of Actions and Milestones (POA&Ms) implementation responses or mitigations, as well as provide all required artifacts (i.e. evidence gathering from the teams) * Coordinating with various contractor and staff personnel to obtain the A&A content, as well as working with various customer organizations to navigate the customer's A&A process in order to achieve Authority to Develop (ATD), Interim Authority to Operation (IATT), as well as Authority to Operate (ATO). * Keep track of where each of the various A&A projects are within the customer's A&A process in order to know when it's time to re-submit for accreditation or an accreditation extension. Preferred Education, Experience, & Skills * Previous ISSE experience directly supporting the customer. * Previous ISSO experience directly supporting the customer is also helpful. * Various security tools and reports such as Xacta, RoadRunner, Rapid 7, WebInspect, App Detective, and Splunk * Public, private and hybrid Cloud experience (AWS, Microsoft Azure, etc.) * Virtualization experience (VDI & VMWare) * Basic knowledge is helpful, but not required for the following general topics: Cloud security control implementation, PKI implementation, STIG compliance and vulnerability management, and Security Development and Operations (SecDevOps) * CISSP, or GSLC * AWS Certified Security Specialty * Basic Excel and Microsoft Office365 Pay Information Full-Time Salary Range: $122870 - $208890 Please note: This range is based on our market pay structures. However, individual salaries are determined by a variety of factors including, but not limited to: business considerations, local market conditions, and internal equity, as well as candidate qualifications, such as skills, education, and experience. Employee Benefits: At BAE Systems, we support our employees in all aspects of their life, including their health and financial well-being. Regular employees scheduled to work 20+ hours per week are offered: health, dental, and vision insurance; health savings accounts; a 401(k) savings plan; disability coverage; and life and accident insurance. We also have an employee assistance program, a legal plan, and other perks including discounts on things like home, auto, and pet insurance. Our leave programs include paid time off, paid holidays, as well as other types of leave, including paid parental, military, bereavement, and any applicable federal and state sick leave. Employees may participate in the company recognition program to receive monetary or non-monetary recognition awards. Other incentives may be available based on position level and/or job specifics. About BAE Systems Intelligence & Security BAE Systems, Inc. is the U.S. subsidiary of BAE Systems plc, an international defense, aerospace and security company which delivers a full range of products and services for air, land and naval forces, as well as advanced electronics, security, information technology solutions and customer support services. Improving the future and protecting lives is an ambitious mission, but it's what we do at BAE Systems. Working here means using your passion and ingenuity where it counts - defending national security with breakthrough technology, superior products, and intelligence solutions. As you develop the latest technology and defend national security, you will continually hone your skills on a team-making a big impact on a global scale. At BAE Systems, you'll find a rewarding career that truly makes a difference. Intelligence & Security (I&S), based in McLean, Virginia, designs and delivers advanced defense, intelligence, and security solutions that support the important missions of our customers. Our pride and dedication shows in everything we do-from intelligence analysis, cyber operations and IT expertise to systems development, systems integration, and operations and maintenance services. Knowing that our work enables the U.S. military and government to recognize, manage and defeat threats inspires us to push ourselves and our technologies to new levels. This position will be posted for at least 5 calendar days. The posting will remain active until the position is filled, or a qualified pool of candidates is identified.

SAIC is seeking an experienced Information Systems Security Engineer (ISSE) for a position located in Chantilly, VA. The successful candidate will leverage overall system knowledge and expertise of space systems regarding security posture in the areas of technical, network, physical, certification and accreditation and operational security. **DESCRIPTION OF DUTIES:** Key duties/responsibilities include, but are not limited to: + Provide ISSE expertise for transitioning NRO or DoD systems authorization to Intelligence Community Directive (ICD) 503 or current agency directive and provide expertise on authorization process as needed. + Perform system, sub-system and unit-level design analysis as necessary to determine if the design is both adequate to meet program security requirements and is cost effective. + Perform analysis of alternatives (AoA) for security architectures and assist Systems Engineering with the planning for significant new and emerging security requirements for information assurance, information technology and security requirements. + Provide support to system certification activities and efforts related to system certification and accreditation. + Research, develop, integrate and distribute IS security tools and associated documentation. + Provide on-site assistance for integrating IS security tools into contractor and Government information systems. + Develop security procedures for systems and software within area of expertise to ensure consistent security policy implementation. + Provide status to Directorate Information System Security Manager (ISSM) regarding certification and accreditation of all System Program Office sponsored systems. + Provide the Information System Security Engineer (ISSE) support for IA systems concept, requirements, design, development, implementation, and/or integration from end-to-end of a system or system component as required. + Design develop, and implement network security measures that provide confidentiality, integrity, availability, authentication and no-repudiation. + Evaluate engineering change request proposals that require additional system requirements and/or possible change to system architecture and provide updated security impacts that affect the system. + Develop security plans utilizing common IA controls where possible when assessing a system for authorization. + Collaborate and work with other Subject Matter Experts (SMEs) on developing authorization packages in support of Achieving Authority to Operate (ATO) with required timelines. + Participate in IA Engineering Working Groups, ISSE forums, Integrated Product Teams (IPTs) and provide IA guidance as needed. **Qualifications** **Clearance required to start:** + Top Secret/SCI with Polygraph. **TYPICAL EDUCATION AND EXPERIENCE:** + Bachelors and fourteen (14) years or more experience; Masters and twelve (12) years or more experience ; PhD or JD and nine (9) years or more experience. **REQUIRED EDUCATION AND EXPERIENCE:** + 9+ years of experience with SIGINT systems. + CISSP, ISSEP and CRISC. + Experience working with developers to support Accreditation and Authorization, ICD 503 requirements, cloud, and multi-level security. + Experience working in a satellite systems program office or a satellite development facility assessing architecture, CONOPs and security requirements. + Experience with IT/IA solutions (e.g., cross domain solutions, cloud hosting). + Skilled at critical thinking. + Excellent communication skills. + Excellent organization skills. + STEM degree. **Desired Skills:** + In-depth knowledge of Xacta or Tribal Fire. + Operational experience in mission area. + Technical Master's degree. + Experience in all phases of space systems lifecycle. REQNUMBER: 2508038 SAIC is a premier technology integrator, solving our nation's most complex modernization and systems engineering challenges across the defense, space, federal civilian, and intelligence markets. Our robust portfolio of offerings includes high-end solutions in systems engineering and integration; enterprise IT, including cloud services; cyber; software; advanced analytics and simulation; and training. We are a team of 23,000 strong driven by mission, united purpose, and inspired by opportunity. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $6.5 billion. For more information, visit saic.com. For information on the benefits SAIC offers, see Working at SAIC. EOE AA M/F/Vet/Disability

SAIC is seeking an experienced Information Systems Security Engineer (ISSE) for a position located in Chantilly, VA. The successful candidate will leverage overall system knowledge and expertise of space systems regarding security posture in the areas of technical, network, physical, certification and accreditation and operational security. DESCRIPTION OF DUTIES: Key duties/responsibilities include, but are not limited to\: Provide ISSE expertise for transitioning NRO or DoD systems authorization to Intelligence Community Directive (ICD) 503 or current agency directive and provide expertise on authorization process as needed. Perform system, sub-system and unit-level design analysis as necessary to determine if the design is both adequate to meet program security requirements and is cost effective. Perform analysis of alternatives (AoA) for security architectures and assist Systems Engineering with the planning for significant new and emerging security requirements for information assurance, information technology and security requirements. Provide support to system certification activities and efforts related to system certification and accreditation. Research, develop, integrate and distribute IS security tools and associated documentation. Provide on-site assistance for integrating IS security tools into contractor and Government information systems. Develop security procedures for systems and software within area of expertise to ensure consistent security policy implementation. Provide status to Directorate Information System Security Manager (ISSM) regarding certification and accreditation of all System Program Office sponsored systems. Provide the Information System Security Engineer (ISSE) support for IA systems concept, requirements, design, development, implementation, and/or integration from end-to-end of a system or system component as required. Design develop, and implement network security measures that provide confidentiality, integrity, availability, authentication and no-repudiation. Evaluate engineering change request proposals that require additional system requirements and/or possible change to system architecture and provide updated security impacts that affect the system. Develop security plans utilizing common IA controls where possible when assessing a system for authorization. Collaborate and work with other Subject Matter Experts (SMEs) on developing authorization packages in support of Achieving Authority to Operate (ATO) with required timelines. Participate in IA Engineering Working Groups, ISSE forums, Integrated Product Teams (IPTs) and provide IA guidance as needed. SAIC accepts applications on an ongoing basis and there is no deadline. SAIC is a premier Fortune 500 mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, civilian and intelligence markets includes secure high-end solutions in mission IT, enterprise IT, engineering services and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives. We are approximately 24,000 strong; driven by mission, united by purpose, and inspired by opportunities. SAIC is an Equal Opportunity Employer. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.5 billion. For more information, visit saic.com. For ongoing news, please visit our newsroom. Clearance required to start\: Top Secret/SCI with Polygraph. TYPICAL EDUCATION AND EXPERIENCE\: Bachelors and fourteen (14) years or more experience; Masters and twelve (12) years or more experience ; PhD or JD and nine (9) years or more experience. REQUIRED EDUCATION AND EXPERIENCE: 9+ years of experience with SIGINT systems. CISSP, ISSEP and CRISC. Experience working with developers to support Accreditation and Authorization, ICD 503 requirements, cloud, and multi-level security. Experience working in a satellite systems program office or a satellite development facility assessing architecture, CONOPs and security requirements. Experience with IT/IA solutions (e.g., cross domain solutions, cloud hosting). Skilled at critical thinking. Excellent communication skills. Excellent organization skills. STEM degree. Desired Skills\: In-depth knowledge of Xacta or Tribal Fire. Operational experience in mission area. Technical Master's degree. Experience in all phases of space systems lifecycle.

SAIC is seeking an experienced Information Systems Security Engineer (ISSE) for a position located in Chantilly, VA. The successful candidate will leverage overall system knowledge and expertise of space systems regarding security posture in the areas of technical, network, physical, certification and accreditation and operational security. DESCRIPTION OF DUTIES: Key duties/responsibilities include, but are not limited to: * Provide ISSE expertise for transitioning NRO or DoD systems authorization to Intelligence Community Directive (ICD) 503 or current agency directive and provide expertise on authorization process as needed. * Perform system, sub-system and unit-level design analysis as necessary to determine if the design is both adequate to meet program security requirements and is cost effective. * Perform analysis of alternatives (AoA) for security architectures and assist Systems Engineering with the planning for significant new and emerging security requirements for information assurance, information technology and security requirements. * Provide support to system certification activities and efforts related to system certification and accreditation. * Research, develop, integrate and distribute IS security tools and associated documentation. * Provide on-site assistance for integrating IS security tools into contractor and Government information systems. * Develop security procedures for systems and software within area of expertise to ensure consistent security policy implementation. * Provide status to Directorate Information System Security Manager (ISSM) regarding certification and accreditation of all System Program Office sponsored systems. * Provide the Information System Security Engineer (ISSE) support for IA systems concept, requirements, design, development, implementation, and/or integration from end-to-end of a system or system component as required. * Design develop, and implement network security measures that provide confidentiality, integrity, availability, authentication and no-repudiation. * Evaluate engineering change request proposals that require additional system requirements and/or possible change to system architecture and provide updated security impacts that affect the system. * Develop security plans utilizing common IA controls where possible when assessing a system for authorization. * Collaborate and work with other Subject Matter Experts (SMEs) on developing authorization packages in support of Achieving Authority to Operate (ATO) with required timelines. * Participate in IA Engineering Working Groups, ISSE forums, Integrated Product Teams (IPTs) and provide IA guidance as needed. Qualifications Clearance required to start: * Top Secret/SCI with Polygraph. TYPICAL EDUCATION AND EXPERIENCE: * Bachelors and fourteen (14) years or more experience; Masters and twelve (12) years or more experience ; PhD or JD and nine (9) years or more experience. REQUIRED EDUCATION AND EXPERIENCE: * 9+ years of experience with SIGINT systems. * CISSP, ISSEP and CRISC. * Experience working with developers to support Accreditation and Authorization, ICD 503 requirements, cloud, and multi-level security. * Experience working in a satellite systems program office or a satellite development facility assessing architecture, CONOPs and security requirements. * Experience with IT/IA solutions (e.g., cross domain solutions, cloud hosting). * Skilled at critical thinking. * Excellent communication skills. * Excellent organization skills. * STEM degree. Desired Skills: * In-depth knowledge of Xacta or Tribal Fire. * Operational experience in mission area. * Technical Master's degree. * Experience in all phases of space systems lifecycle. Overview SAIC accepts applications on an ongoing basis and there is no deadline. SAIC is a premier Fortune 500 mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, civilian and intelligence markets includes secure high-end solutions in mission IT, enterprise IT, engineering services and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives. We are approximately 24,000 strong; driven by mission, united by purpose, and inspired by opportunities. SAIC is an Equal Opportunity Employer. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.5 billion. For more information, visit saic.com. For ongoing news, please visit our newsroom.

**MANTECH** seeks a motivated, career and customer-oriented **Senior Information System Security Officer (ISSO)** to join our team in **Quantico, VA.** **Responsibilities include, but are not limited to:** + Ensure the day-to-day implementation, oversight, continuous monitoring, and maintenance of the security configuration, practices, and procedures for each IS and that selected security controls are implemented and operating as intended during all phases of the IS lifecycle + Provide liaison support between the system owner and other IS security personnel + Ensure that system security documentation is developed, maintained, reviewed, and updated on a continuous basis; Conduct required IS vulnerability scans according to risk assessment parameters + Manage the risks to ISs and other FBI assets by coordinating appropriate correction or mitigation actions and oversee and track the timely completion of (POAMs). Coordinate system owner concurrence for correction or mitigation actions + Monitor security controls for FBI ISs to maintain security Authorized to Operate (ATO); Upload all security control evidence to the Governance, Risk, and Compliance (GRC) application to support security control implementation during the monitoring phase + Ensure that changes to an FBI IS, its environment, and/or operational needs that may affect the authorization status are reported to the system owner and IS Security Manager (ISSM) + Ensure the removal and retirement of ISs being decommissioned in coordination with the system owner, ISSM, and ISSR; Working knowledge of the National Institute of Standards and Technology (NIST) Risk Management Framework (RMF) and ATO processes **Minimum Qualifications:** + Must meet one of the following levels of experience: A high school diploma/GED and 7 years' experience, a bachelor's degree in computer science cybersecurity or a related discipline and five years' experience, or a master's degree in computer science cybersecurity or a related discipline and 3 years' experience. + Hold at least one of the following Information Assurance Management (IAM) Level III certifications: Certified Information Systems Security Professional (CISSP), Global Information Security Professional (GISP), or the CompTIA Advanced Security Practitioner (CASP) or equivalent certifications + Familiarity with the use and operation of security tools including Tenable Nessus and/or Security Center, IBM Guardium, HP Weblnspect, Network Mapper (NMAP), and/or similar applications **Preferred Qualifications:** + A bachelor's or advanced degree in Computer Science, Cybersecurity, or other cyber discipline **Clearance Requirements:** + Must have a current/active Top Secret security clearance with eligibility to obtain SCI prior to starting this position. + Selected candidate must be willing to undergo a Polygraph. **Physical Requirements:** + Must be able to remain in a stationary position 50% + Needs to occasionally move about inside the office to access file cabinets, office machinery, etc. + Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer + Often positions self to maintain computers in the lab, including under the desks and in the server closet + Frequently communicates with co-workers, management and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations. MANTECH International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation. If you need a reasonable accommodation to apply for a position with MANTECH, please email us at ******************* and provide your name and contact information.

**MANTECH** seeks a motivated, career and customer-oriented **Senior Information System Security Engineer (ISSE)** to join our team in **Norfolk, VA.** This is a **hybrid** position with 1-2 days onsite and 2-3 days remote. As an **ISSE,** you will have the opportunity to work on innovative and mission-critical and national security projects. You will collaborate with a skilled team of professionals, responsible for developing accreditation packages for cloud systems in both AWS and Azure environments. This position offers great opportunities for technical growth and improved experience in Cyber Security. **Responsibilities include but are not limited to:** + Performing cyber security research under NAVSEA for cloud and network solutions + Developing, defining, and aiding in implementing cyber security policies and processes + Defining IS and Network Environment security requirements in accordance with applicable cybersecurity requirements + Supporting A&A packages for multiple projects + Applying security expertise to new modernization cyber solutions that provide confidentiality, integrity, availability, authentication, and non-repudiation for security policies and memorandum for records + Developing Plan of Action and Milestones with proper Mitigations or Remediations, accordingly + Developing approaches to mitigate IS and Cloud Network Environment vulnerabilities and recommend changes to network or network system components as needed + Travel up to 25% **Minimum Qualifications:** + Bachelor's degree in Computer Science, Information Technology, Engineering, or a related technical field, and 8+ years of relevant experience + 5+ years developing secure solutions for incident response, business continuity, and disaster recovery + 3+ years implementing security controls and policies with emerging cybersecurity technologies, including access control, privileged access management, data security, network security, data loss prevention, cloud security, vulnerability management, configuration management, privacy, and audits + Must have an active Security+ certification + Must be familiar with the use and operation of security tools including STIG Viewer, eMASSter, and Tenable Nessus and/or Security Center + Experience with cloud brokerages, preferably Navy + Knowledge and experience working with federal compliance and guidance, including FISMA, RMF, Federal Enterprise Architecture Framework, DoDAF, NIST Cybersecurity Framework, NIST 800 series, FedRAMP and cloud-based security controls **Preferred Qualifications** : + Master's degree + One of the following certifications: Certified Information Systems Security Professional (CISSP), CompTIA Advanced Security Practitioner (CASP) CE, Certified Secure Software Lifecycle Professional (CSSLP), CISSP- Information System Security Engineering Professional (ISSEP), or CISSP- Information System Security Architecture Professional (ISSAP) or an equivalent security certification **Clearance Requirements:** + Must have an active Secret security clearance. **Physical Requirements:** + The person in this position must be able to remain in a stationary position 50% of the time. + Must be able to move around the office and operate office equipment. + Frequently communicate with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations. MANTECH International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation. If you need a reasonable accommodation to apply for a position with MANTECH, please email us at ******************* and provide your name and contact information.

General information Requisition # R64098 Posting Date 11/04/2025 Security Clearance Required Secret Remote Type Hybrid Time Type Full time Description & Requirements Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we've been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now-protect and innovate with MANTECH! MANTECH seeks a motivated, career and customer-oriented Senior Information System Security Engineer (ISSE) to join our team in Norfolk, VA. This is a hybrid position with 1-2 days onsite and 2-3 days remote. As an ISSE, you will have the opportunity to work on innovative and mission-critical and national security projects. You will collaborate with a skilled team of professionals, responsible for developing accreditation packages for cloud systems in both AWS and Azure environments. This position offers great opportunities for technical growth and improved experience in Cyber Security. Responsibilities include but are not limited to: * Performing cyber security research under NAVSEA for cloud and network solutions * Developing, defining, and aiding in implementing cyber security policies and processes * Defining IS and Network Environment security requirements in accordance with applicable cybersecurity requirements * Supporting A&A packages for multiple projects * Applying security expertise to new modernization cyber solutions that provide confidentiality, integrity, availability, authentication, and non-repudiation for security policies and memorandum for records * Developing Plan of Action and Milestones with proper Mitigations or Remediations, accordingly * Developing approaches to mitigate IS and Cloud Network Environment vulnerabilities and recommend changes to network or network system components as needed * Travel up to 25% Minimum Qualifications: * Bachelor's degree in Computer Science, Information Technology, Engineering, or a related technical field, and 8+ years of relevant experience * 5+ years developing secure solutions for incident response, business continuity, and disaster recovery * 3+ years implementing security controls and policies with emerging cybersecurity technologies, including access control, privileged access management, data security, network security, data loss prevention, cloud security, vulnerability management, configuration management, privacy, and audits * Must have an active Security+ certification * Must be familiar with the use and operation of security tools including STIG Viewer, eMASSter, and Tenable Nessus and/or Security Center * Experience with cloud brokerages, preferably Navy * Knowledge and experience working with federal compliance and guidance, including FISMA, RMF, Federal Enterprise Architecture Framework, DoDAF, NIST Cybersecurity Framework, NIST 800 series, FedRAMP and cloud-based security controls Preferred Qualifications: * Master's degree * One of the following certifications: Certified Information Systems Security Professional (CISSP), CompTIA Advanced Security Practitioner (CASP) CE, Certified Secure Software Lifecycle Professional (CSSLP), CISSP- Information System Security Engineering Professional (ISSEP), or CISSP- Information System Security Architecture Professional (ISSAP) or an equivalent security certification Clearance Requirements: * Must have an active Secret security clearance. Physical Requirements: * The person in this position must be able to remain in a stationary position 50% of the time. * Must be able to move around the office and operate office equipment. * Frequently communicate with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations. MANTECH International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation. If you need a reasonable accommodation to apply for a position with MANTECH, please email us at ******************* and provide your name and contact information.

General information Requisition # R64516 Posting Date 11/28/2025 Security Clearance Required TS/SCI Remote Type Onsite Time Type Full time Description & Requirements Transform the future of federal services with MANTECH! Join a vibrant, energetic team committed to enhancing national security and public services through innovative tech. Since 1968, we've partnered with Federal Civilian sectors to deliver impactful solutions. Engage in exciting projects in Digital Transformation, Cybersecurity, IT, Data Analytics and more. Ignite your career and drive change. Your journey starts now-innovate and excel with MANTECH! MANTECH seeks a motivated, career and customer-oriented Information System Security Engineer (ISSE) to join our team in Chantilly, VA. Responsibilities include, but are not limited to: * Identify information protection needs for an IS and Network Environment. Define IS and Network Environment security requirements in accordance with applicable cybersecurity requirements * Design security architectures for use within the IS and Network Environment. Design and develop cybersecurity-enabled products for use within an IS and Network Environment * Integrate and/or implement security with Cross Domain Solutions (CDS) for use within an IS and Network Environment * Develop and implement security designs for new or existing network system(s). Ensure that the design of hardware, operating systems, and software applications adequately address cybersecurity requirements for the IS and Network Environment * Design, develop, and implement network security measures that provide confidentiality, integrity, availability, authentication, and non-repudiation. Design, develop, and implement specific cybersecurity countermeasures for the IS and Network Environment * Develop interface specifications for the IS and Network Environment. Develop approaches to mitigate IS and Network Environment vulnerabilities and recommend changes to network or network system components as needed * Ensure that network system(s) designs support the incorporation of FBI directed cybersecurity vulnerability solutions Minimum Qualifications: * Must meet one of the following levels of experience: A high school diploma/GED and 14 years' experience, an Associate's degree and 7 years' experience, a Bachelors degree and five years' experience, or a Master's and 3 years' experience. * Hold at least one of the following certifications: Certified Information Systems Security Professional (CISSP) (or Associate), CompTIA Advanced Security Practitioner (CASP) CE, Certified Secure Software Lifecycle Professional (CSSLP), CISSP- Information System Security Engineering Professional (ISSEP), or CISSP- Information System Security Architecture Professional (ISSAP). * Familiarity with the use and operation of security tools including: Tenable Nessus and/or Security Center, IBM Guardium, HP WeblInspect, Network Mapper (NMAP), and/or similar applications. * Working knowledge of the National Institute of Standards and Technology (NIST) Risk Management Framework (RMF) and ATO processes. Preferred Qualifications: * Degree in Computer Science, Cybersecurity, or other cyber discipline. Security Clearance Requirements: * Must have a current/active Top Secret security clearance with eligibility to obtain SCI prior to starting this position. * Selected candidate must be willing to undergo a Polygraph. Physical Requirements: * Must be able to remain in a stationary position 50% * Needs to occasionally move about inside the office to access file cabinets, office machinery, etc. * Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer * Often positions self to maintain computers in the lab, including under the desks and in the server closet * Frequently communicates with co-workers, management and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations MANTECH International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation. If you need a reasonable accommodation to apply for a position with MANTECH, please email us at ******************* and provide your name and contact information.