Cyber Security Engineer jobs at ManTech

General information Requisition # R63720 Posting Date 10/17/2025 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 Cyber Security Engineer Lead to join our team in Springfield, VA. The Cyber Security Engineer Lead is responsible for the detection, identification, analysis, and reporting of cyber threats, intrusions, anomalous activities, and potential misuse of systems. This role supports the protection of customer's digital assets and sensitive data through the administration, monitoring, and continuous improvement of cybersecurity technologies and processes. Responsibilities include but are not limited to: * Threat Detection & Response: Identify, assess, and report potential cyber-attacks, intrusions, and abnormal system behaviors. Participate actively in incident response and recovery activities. * Technology Administration: Administer and maintain systems supporting Identity Management, Privileged User Access, Access Control (firewall), End Point Protection, Internet Protection, Vulnerability Scanning, and Security Information and Event Management (SIEM) tools. * Mitigation & Remediation: Develop and implement enterprise-level mitigation strategies to address complex vulnerabilities. * Operational Support: Ensure proper installation, testing, patching, upgrading, and performance of cybersecurity tools and applications. Maintain system resiliency and availability across all managed technologies. * Policy Enforcement & Compliance: Enforce cybersecurity policies, standards, and best practices in alignment with ManTech's security framework and regulatory requirements. * Leadership & Collaboration: Lead or participate in cross-functional projects and initiatives. Provide technical mentorship and subject matter expertise to junior team members.; Continuous Improvement: Interpret internal and external cybersecurity trends and business challenges; recommend and implement innovative solutions to strengthen the enterprise security posture. * Monitor intrusion detection and prevention systems and other security event data sources; determine if security events monitored should be escalated to incidents and follow all applicable incident response and reporting processes and procedures. Minimum Qualifications: * Bachelor's Degree in Cybersecurity, Information Technology, Computer Science, or a related Cyber Security field. * Certified Information Systems Security Professional (CISSP) certification (required within 6 months of assignment to the position, otherwise failure to obtain certification within 6 months of assignment to the position may result in removal). * 8+ years of relevant cybersecurity experience, including hands-on technical administration and operational security support. * Strong analytical and problem-solving abilities * Deep knowledge of cybersecurity frameworks, principles, and technologies * Proficiency in SIEM, endpoint protection, and identity management tool * Must be able to travel up to 25% Preferred Qualifications: * Have a good understanding of DISA compliance directives and recommend having knowledge of the JSIG. * Ability to lead small teams or projects * Excellent communication and influence skills; Strong judgment in identifying and mitigating security risks * Correlate data from intrusion detection and prevention systems with data from other sources Clearance Requirements: * Must have current/active TS/SCI with the ability to obtain and maintain a Yankee White security clearance Physical Requirements: * Must be able to remain in a stationary position 50% The person in this position 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. * The person in this position 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.

Job Description BAE is seeking highly skilled Information System Security Officers (ISSOs) to join our team in support of our CNIC customer. As an ISSO, you will play a critical role in maintaining the cybersecurity posture of our organization by developing security policies, conducting audits, monitoring systems for vulnerabilities, responding to security incidents, and ensuring compliance with relevant regulations. Key Responsibilities: * Policy and Procedure Development: Create and implement robust information security policies, protocols, and procedures to ensure the confidentiality, integrity, and availability of information systems. * Risk Management: Conduct risk assessments, identify vulnerabilities, and recommend mitigation strategies to protect information systems. * Security Auditing and Monitoring: Perform regular security audits, monitor network traffic for unusual activity, and manage security tools like firewalls. * Incident Response: Investigate security breaches, coordinate incident response activities, and implement corrective actions. * Documentation: Develop and maintain crucial security documentation, including System Security Plans (SSPs) and security authorization packages. * Compliance: Ensure adherence to relevant legal and regulatory requirements, such as NIST Risk Management Framework (RMF). * Technical Expertise: Provide technical guidance on security architecture, hardware/software security, and encryption techniques. * Training and Reporting: Train other staff on security protocols and provide regular security status reports to management. This position is located in Chesapeake, VA. There is no relocation assistance available for this position. Applicants must be currently residing in or state willingness to relocate self to Chesapeake, VA or surrounding areas. Required Education, Experience, & Skills Bachelor's degree in Information Technology, Information Assurance, Cybersecurity or related field (Additional 4 years of experience may be substituted for the degree) At least 5 years of experience in information security or a related field Compliant with DoD Cyber Workforce Framework (DCWF), DoD Directive 8140.01 (supersedes DoD 8570). This may include CompTIA Security+, GIAC Security Essentials (GSEC), or ISC2 Systems Security Certificate Practitioner (SSCP), etc. Proficiency with current security tools, intrusion detection systems, and firewalls. Deep knowledge of NIST publications, particularly the NIST 800 series. Experience with enterprise network devices (routers, switches, firewalls) and various operating systems (e.g., UNIX, Microsoft). Proven experience in creating and maintaining security authorization documentation. Strong communication and teamwork skills are essential for collaborating with IT staff and management.Preferred Education, Experience, & Skills Master's degree in Information Technology, Information Assurance, Cybersecurity or related field At least 8 years of experience in information security or a related field Senior cybersecurity certifications such as ISC2 Certified Information Systems Security Professional (CISSP), ISC2 CISSP-Architecture, ISACA Certified Information Security Manager (CISM), ISC2 Certified Authorization Professional (CAP), EC-Council Certified Chief Information Security Officer (C|CISO), ISACA Certification in Risk and Information Systems Control (CRISC), ISACA Certified Information Systems Auditor (CISA) Pay Information Full-Time Salary Range: $86460 - $146982 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.

Job Description We are seeking a highly skilled Linux and Elastic Security SIEM Engineer to join our team. The successful candidate will be responsible for designing, implementing, and maintaining Linux systems and a Security Information and Event Management (SIEM) platform. The ideal candidate will have experience with Red Hat Enterprise Linux (RHEL), Elastic Security SIEM, and other relevant technologies. Solid understanding of network security industry standards and frameworks, implement the DoD Risk Management Framework (RMF), DoD Security Technical Implementation Guides (STIGs) and DoD Security Requirements Guides (SRGs). Key Responsibilities: * Design, implement, and maintain Linux systems, including Red Hat Enterprise Linux (RHEL) * Design, configure and manage Elastic Security SIEM, including searching for and filtering logs to troubleshoot and isolate issues * Ensure security hardening of Linux systems and SIEM * Develop and maintain Standard Operating Procedures (SOPs) for Linux and SIEM administration * Troubleshoot issues independently and as part of a team * Adapt to changing priorities and manage multiple engineering task This position is located in Norfolk, VA. There is no relocation assistance available for this position. Applicants must be currently residing in or state willingness to relocate self to Norfolk or surrounding areas. Required Education, Experience, & Skills Bachelor's Degree in Cybersecurity, Information Technology or related field and at least 6 years of related experience (Additional experience may be substituted for the degree) DoD 8570/8140 compliant such as CompTIA Security+ certification Experience with the engineering, administration, and security hardening experience with Red Hat Enterprise Linux (RHEL) Experience with Elastic Security, including ability to search for and filter logs to troubleshoot and isolate issues Good understanding of how diverse host and network firewalls function Excellent written and verbal communications, including experience with authoring and maintaining Standard Operating Procedures (SOPs) Ability to troubleshoot independently and as a team Ability to adapt, manage, and prioritize engineering tasks Preferred Education, Experience, & Skills Master's Degree in Cybersecurity, Information Technology or related field Elastic Security SIEM certification GIAC certifications,ISC2 CISSP, Red Hat Certified Engineer (RHCE), Linux certifications 10 years of relevant experience Experience with HPE Primera Storage administration and security hardening Brocade configuration and security hardening experience Red Hat Satellite configuration and maintenance experience Experience with Ansible to automate repetitive tasks Understanding of how Git repositories function Familiarity with hypervisors, including Vmware and Proxmox Pay Information Full-Time Salary Range: $105254 - $178931 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.

We are seeking a highly skilled Linux and Elastic Security SIEM Engineer to join our team. The successful candidate will be responsible for designing, implementing, and maintaining Linux systems and a Security Information and Event Management (SIEM) platform. The ideal candidate will have experience with Red Hat Enterprise Linux (RHEL), Elastic Security SIEM, and other relevant technologies. Solid understanding of network security industry standards and frameworks, implement the DoD Risk Management Framework (RMF), DoD Security Technical Implementation Guides (STIGs) and DoD Security Requirements Guides (SRGs). Key Responsibilities: + Design, implement, and maintain Linux systems, including Red Hat Enterprise Linux (RHEL) + Design, configure and manage Elastic Security SIEM, including searching for and filtering logs to troubleshoot and isolate issues + Ensure security hardening of Linux systems and SIEM + Develop and maintain Standard Operating Procedures (SOPs) for Linux and SIEM administration + Troubleshoot issues independently and as part of a team + Adapt to changing priorities and manage multiple engineering task This position is located in Norfolk, VA. There is no relocation assistance available for this position. Applicants must be currently residing in or state willingness to relocate self to Norfolk or surrounding areas. **Required Education, Experience, & Skills** Bachelor's Degree in Cybersecurity, Information Technology or related field and at least 6 years of related experience (Additional experience may be substituted for the degree) DoD 8570/8140 compliant such as CompTIA Security certification Experience with the engineering, administration, and security hardening experience with Red Hat Enterprise Linux (RHEL) Experience with Elastic Security, including ability to search for and filter logs to troubleshoot and isolate issues Good understanding of how diverse host and network firewalls function Excellent written and verbal communications, including experience with authoring and maintaining Standard Operating Procedures (SOPs) Ability to troubleshoot independently and as a team Ability to adapt, manage, and prioritize engineering tasks **Preferred Education, Experience, & Skills** Master's Degree in Cybersecurity, Information Technology or related field Elastic Security SIEM certification GIAC certifications,ISC2 CISSP, Red Hat Certified Engineer (RHCE), Linux certifications 10 years of relevant experience Experience with HPE Primera Storage administration and security hardening Brocade configuration and security hardening experience Red Hat Satellite configuration and maintenance experience Experience with Ansible to automate repetitive tasks Understanding of how Git repositories function Familiarity with hypervisors, including Vmware and Proxmox **Pay Information** Full-Time Salary Range: $105254 - $178931 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. **Cyber Security Analyst - SIEM and Linux Focus** **116401BR** EEO Career Site Equal Opportunity Employer. Minorities . females . veterans . individuals with disabilities . sexual orientation . gender identity . gender expression

Cyber Threat AnalystJob Category: EngineeringTime Type: Full time Minimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required:Type of Travel: Local* * *The Opportunity:If chosen, YOU will get to work with an agile, fast paced team focused on defending our client's global networks through threat hunting and tactical analysis of ongoing attacks. In this role, you will challenged to dig into various platforms to discover data anomalies. This person should have a wide range knowledge and skills, such as computer forensics/mobile device forensics, data recovery, reverse engineering intrusion analysis and methodologies, intelligence analysis, and vulnerability assessments. If chosen, YOU will have the opportunity to work on highly visible projects that directly make an impact to the Nations mission. YOU will be a motivated, passionate leader with the ability to drive our long-term strategic goals with daily tactical objectives. YOU will be a critical component in taking complex problems and delivering solutions that are simple yet elegant.Responsibilities: Use GOTS, commercial, and/or open source data exploitation and visualization tools for analysis, preferably broad in scope. Analyze data sets (both small and large) for trends and patterns. Produce informational, contextual, and/or intelligence products that embody and explain findings for a variety of audiences. Script and/or programming experience (e.g. Python, Bash, R, Spark, C#, Java.) Work with intrusion sets TTPs and the ability to apply knowledge to future analysis. Work with social media platforms. Be part of a department with an expanding range of programs focusing on Cyber Operations, where you get to grow on and between programs with peers who are dedicated to advancing national security. Participate in fun team outings and team building events where you get to engage with your co-workers and expand your career network. We are a fun, engaging environment with a management team focused on growing your career and making you a part of our future. We offer bonus compensation plans that demonstrate you being appreciated for working on the program and being a part of our team. You'll get paid for cyber events and training, such as our Capture the Flag Events, Internal Research and Development opportunities as well as prepaid courses to nationally recognized certification courses to grow your career. To learn more, you can visit our program's landing page: VORPAL Jobs .Qualifications: Required: Active TS/SCI with required polygraph clearance. Bachelors degree. Minimum of 7 years of experience in technical analysis, digital forensics, technical targeting, or similar relevant technical experience. Fundamental understanding of networking, with basic knowledge of Linux and Windows operating systems Comfortable with Windows and Linux command line tools (PowerShell) Proficient in data exploitation and data analysis. Proficient in analyzing log files from web hosting services and other technical infrastructure. Proficient in analyzing and exploiting RAW PCAP collections. Ability to articulate technical information to non-technical audiences. Strong analytical and critical thinking skills, ability to think strategically. Ability to express complex ideas and insights verbally and in writing to a variety of audiences. Ability to remain open minded and change opinions based on new information and requirements. Ability to pay attention to details, ensuring accuracy in documentation. Knowledge of IT defensive best practices. Demonstrated experience employing visualization tools to display network graphs, workflows using COTS products or custom scripts 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: $113,200 - $237,800 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.

Cyber Security AnalystJob Category: EngineeringTime Type: Full time Minimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Outside Continental US* * * The Opportunity: CACI is seeking a Security Analyst to conduct technical analysis to drive operations, including but not limited to: technical development, work with various partners, network analysis to understand target networks, developing network maps, profiling network security posture and technical overwatch. In this role you will leverage knowledge, provide technical analysis, conduct network analysis and reconnaissance, document analysis and code in accordance with the industry and client's best practices and leverage applications and scripting capabilities. You will also be able to partner with and conduct briefings across the client's organization and their components in support of technical analysis and operational goals. Be part of a department with an expanding range of programs focusing on Cyber Operations, where you get to grow on and between programs with peers who are dedicated to advancing national security. Participate in fun team outings and team building events where you get to engage with your co-workers and expand your career network. We are a fun, engaging environment with a management team focused on growing your career and making you a part of our future. We offer bonus compensation plans that demonstrate you being appreciated for working on the program and being a part of our team. You'll get paid for cyber events and training, such as our Capture the Flag Events, Internal Research and Development opportunities as well as prepaid courses to nationally recognized certification courses to grow your career. You can learn more about our program by accessing the landing page: VORPAL Jobs . Responsibilities: Solve cyber problems, identify and develop methodologies to advance cyber operations Provide technical development and analysis Network analysis to understand target networks and developing network maps Profiling network security posture and technical overwatch Conduct network analysis and reconnaissance Document analysis and code in accordance with industry and client's best practices Leverage applications and scripting capabilities Conduct briefings across the client's organization Qualifications: Required : Active Top Secret/Sensitive Compartmented Information (TS/SCI) clearance, with polygraph. Bachelor's degree in a related scientific or technical discipline Approximately 7+ years of related work experience Working knowledge of cyber operations and/or penetration testing Ability to conduct network forensics and internet traffic characterization Strong analytic and critical thinking skills, including the ability to think strategically Ability to effectively express complex ideas and insights verbally and in writing to a variety of audiences, both technical and non-technical Knowledge of analytic tools Scripting (e.g., python, bash) Comfortable with Windows and Linux command line tools (PowerShell, bash, etc.) Knowledge of IT defensive best practices Ability to pay attention to details, ensuring accuracy in documentation and data Can handle working multiple projects at once with minimal guidance Network analysis skills (understanding of TCP/IP packet analysis using GUI and command-line tools) Ability to create logical network diagrams from various, often incomplete data sources (such as network device configurations, endpoint survey date and other collected information) Understanding of TCP/IP routing Ability to draw detailed diagrams and write clear documentation Desired : Master's degree in a related scientific or technical discipline Self-motivated, creative problem solver Manipulating and parsing files of various structured and unstructured formats and extracting relevant technical data Experience leveraging advanced analytical and partnering with data scientists to answer technical questions - ________________________________________________________________________________________ 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: $113,200 - $237,800 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.

Job Category: Engineering 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: Outside Continental US * * * **The Opportunity** : CACI is seeking a Security Analyst to conduct technical analysis to drive operations, including but not limited to: technical development, work with various partners, network analysis to understand target networks, developing network maps, profiling network security posture and technical overwatch. In this role you will leverage knowledge, provide technical analysis, conduct network analysis and reconnaissance, document analysis and code in accordance with the industry and client's best practices and leverage applications and scripting capabilities. You will also be able to partner with and conduct briefings across the client's organization and their components in support of technical analysis and operational goals. Be part of a department with an expanding range of programs focusing on Cyber Operations, where you get to grow on and between programs with peers who are dedicated to advancing national security. Participate in fun team outings and team building events where you get to engage with your co-workers and expand your career network. We are a fun, engaging environment with a management team focused on growing your career and making you a part of our future. We offer bonus compensation plans that demonstrate you being appreciated for working on the program and being a part of our team. You'll get paid for cyber events and training, such as our Capture the Flag Events, Internal Research and Development opportunities as well as prepaid courses to nationally recognized certification courses to grow your career. You can learn more about our program by accessing the landing page: VORPAL Jobs (******************************** . **Responsibilities:** + Solve cyber problems, identify and develop methodologies to advance cyber operations + Provide technical development and analysis + Network analysis to understand target networks and developing network maps + Profiling network security posture and technical overwatch + Conduct network analysis and reconnaissance + Document analysis and code in accordance with industry and client's best practices + Leverage applications and scripting capabilities + Conduct briefings across the client's organization **Qualifications** : _Required_ : + Active Top Secret/Sensitive Compartmented Information (TS/SCI) clearance, with polygraph. + Bachelor's degree in a related scientific or technical discipline + Approximately 7+ years of related work experience + Working knowledge of cyber operations and/or penetration testing + Ability to conduct network forensics and internet traffic characterization + Strong analytic and critical thinking skills, including the ability to think strategically + Ability to effectively express complex ideas and insights verbally and in writing to a variety of audiences, both technical and non-technical + Knowledge of analytic tools + Scripting (e.g., python, bash) + Comfortable with Windows and Linux command line tools (PowerShell, bash, etc.) + Knowledge of IT defensive best practices + Ability to pay attention to details, ensuring accuracy in documentation and data + Can handle working multiple projects at once with minimal guidance + Network analysis skills (understanding of TCP/IP packet analysis using GUI and command-line tools) + Ability to create logical network diagrams from various, often incomplete data sources (such as network device configurations, endpoint survey date and other collected information) + Understanding of TCP/IP routing + Ability to draw detailed diagrams and write clear documentation _Desired_ : + Master's degree in a related scientific or technical discipline + Self-motivated, creative problem solver + Manipulating and parsing files of various structured and unstructured formats and extracting relevant technical data + Experience leveraging advanced analytical and partnering with data scientists to answer technical questions - **________________________________________________________________________________________** **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: $113,200 - $237,800 _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._

Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Type of Travel: Local * * * **The Opportunity:** **If chosen, YOU will get to work with an agile, fast paced team focused on defending our client's global networks through threat hunting and tactical analysis of ongoing attacks. In this role, you will challenged to dig into various platforms to discover data anomalies. This person should have a wide range knowledge and skills, such as computer forensics/mobile device forensics, data recovery, reverse engineering intrusion analysis and methodologies, intelligence analysis, and vulnerability assessments. If chosen, YOU will have the opportunity to work on highly visible projects that directly make an impact to the Nations mission. YOU will be a motivated, passionate leader with the ability to drive our long-term strategic goals with daily tactical objectives. YOU will be a critical component in taking complex problems and delivering solutions that are simple yet elegant.** **Responsibilities:** **Use GOTS, commercial, and/or open source data exploitation and visualization tools for analysis, preferably broad in scope.** **Analyze data sets (both small and large) for trends and patterns.** **Produce informational, contextual, and/or intelligence products that embody and explain findings for a variety of audiences.** **Script and/or programming experience (e.g. Python, Bash, R, Spark, C#, Java.)** **Work with intrusion sets TTPs and the ability to apply knowledge to future analysis.** **Work with social media platforms.** **Be part of a department with an expanding range of programs focusing on Cyber Operations, where you get to grow on and between programs with peers who are dedicated to advancing national security. Participate in fun team outings and team building events where you get to engage with your co-workers and expand your career network. We are a fun, engaging environment with a management team focused on growing your career and making you a part of our future. We offer bonus compensation plans that demonstrate you being appreciated for working on the program and being a part of our team. You'll get paid for cyber events and training, such as our Capture the Flag Events, Internal Research and Development opportunities as well as prepaid courses to nationally recognized certification courses to grow your career. To learn more, you can visit our program's landing page: VORPAL Jobs (******************************** .** **Qualifications:** **_Required:_** **Active TS/SCI with required polygraph clearance.** **Bachelors degree.** **Minimum of 7 years of experience in technical analysis, digital forensics, technical targeting, or similar relevant technical experience.** **Fundamental understanding of networking, with basic knowledge of Linux and Windows operating systems** **Comfortable with Windows and Linux command line tools (PowerShell)** **Proficient in data exploitation and data analysis.** **Proficient in analyzing log files from web hosting services and other technical infrastructure.** **Proficient in analyzing and exploiting RAW PCAP collections.** **Ability to articulate technical information to non-technical audiences.** **Strong analytical and critical thinking skills, ability to think strategically.** **Ability to express complex ideas and insights verbally and in writing to a variety of audiences.** **Ability to remain open minded and change opinions based on new information and requirements.** **Ability to pay attention to details, ensuring accuracy in documentation.** **Knowledge of IT defensive best practices.** **Demonstrated experience employing visualization tools to display network graphs, workflows using COTS products or custom scripts** 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: $113,200 - $237,800 _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._

Job Category: Engineering 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: Outside Continental US * * * The Opportunity: CACI is seeking a Security Analyst to conduct technical analysis to drive operations, including but not limited to: technical development, work with various partners, network analysis to understand target networks, developing network maps, profiling network security posture and technical overwatch. In this role you will leverage knowledge, provide technical analysis, conduct network analysis and reconnaissance, document analysis and code in accordance with the industry and client's best practices and leverage applications and scripting capabilities. You will also be able to partner with and conduct briefings across the client's organization and their components in support of technical analysis and operational goals. Be part of a department with an expanding range of programs focusing on Cyber Operations, where you get to grow on and between programs with peers who are dedicated to advancing national security. Participate in fun team outings and team building events where you get to engage with your co-workers and expand your career network. We are a fun, engaging environment with a management team focused on growing your career and making you a part of our future. We offer bonus compensation plans that demonstrate you being appreciated for working on the program and being a part of our team. You'll get paid for cyber events and training, such as our Capture the Flag Events, Internal Research and Development opportunities as well as prepaid courses to nationally recognized certification courses to grow your career. You can learn more about our program by accessing the landing page: VORPAL Jobs . Responsibilities: * Solve cyber problems, identify and develop methodologies to advance cyber operations * Provide technical development and analysis * Network analysis to understand target networks and developing network maps * Profiling network security posture and technical overwatch * Conduct network analysis and reconnaissance * Document analysis and code in accordance with industry and client's best practices * Leverage applications and scripting capabilities * Conduct briefings across the client's organization Qualifications: Required: * Active Top Secret/Sensitive Compartmented Information (TS/SCI) clearance, with polygraph. * Bachelor's degree in a related scientific or technical discipline * Approximately 7+ years of related work experience * Working knowledge of cyber operations and/or penetration testing * Ability to conduct network forensics and internet traffic characterization * Strong analytic and critical thinking skills, including the ability to think strategically * Ability to effectively express complex ideas and insights verbally and in writing to a variety of audiences, both technical and non-technical * Knowledge of analytic tools * Scripting (e.g., python, bash) * Comfortable with Windows and Linux command line tools (PowerShell, bash, etc.) * Knowledge of IT defensive best practices * Ability to pay attention to details, ensuring accuracy in documentation and data * Can handle working multiple projects at once with minimal guidance * Network analysis skills (understanding of TCP/IP packet analysis using GUI and command-line tools) * Ability to create logical network diagrams from various, often incomplete data sources (such as network device configurations, endpoint survey date and other collected information) * Understanding of TCP/IP routing * Ability to draw detailed diagrams and write clear documentation Desired: * Master's degree in a related scientific or technical discipline * Self-motivated, creative problem solver * Manipulating and parsing files of various structured and unstructured formats and extracting relevant technical data * Experience leveraging advanced analytical and partnering with data scientists to answer technical questions * ________________________________________________________________________________________ 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: $113,200 - $237,800 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.

**MANTECH** seeks a motivated, career and customer-oriented **Senior Cyber Security Engineer** to join our team in **Chantilly, VA** . Senior Cyber Security Engineers are responsible for the quality of cyber security-related solution delivery, development, testing, and deployment in support of cyber security efforts. You will help create secure and efficient cyber solution components based on defined requirements and mission objectives. The successful candidate must possess the ability to work both independently and within a collaborative team environment. **Responsibilities include but are not limited to:** + Maintain operations of identity and access management services including directory, access, identity, and privileged access management services + Maintain infrastructure in cloud or virtualized environments + Perform Linux-based system upgrades and patches + Engineer and deploy a Multi-Factor Authentication (MFA) solution + Manage Continuous Monitoring (CONMON) activities + Maintain Authority to Operate (ATO) + Provide status reports in an Agile environment + Periodically provide after-hour support **Minimum Qualifications:** + Bachelor's degree in an Information Technology field, or 4+ years of additional experience in lieu of a degree + 5+ years of cyber experience in support of mission systems + Experience working in LINUX environments + Proficiency with LDAP directories and database management + Ability to create scripts (e.g., Python, Bash) to support automation efforts + Understanding of cybersecurity frameworks and best practices + Familiarity with cloud security and virtualized infrastructure technologies + Ability to troubleshoot system-level issues and conduct root cause analysis + Must have or be willing to obtain IAT Level II certification within 6 months of hire (e.g., Security+, GSEC, SSCP) **Preferred Qualifications:** + Experience with Ansible and writing automation playbooks + Experience with PKI principles and certificate lifecycle management + Hands-on experience with identity federation technologies (e.g., SAML, OAuth) + Experience working in Agile and DevOps environments + Understanding of Identity and Access Management (IAM) concepts and solutions + Experience with system hardening and compliance standards (e.g., STIGs, CIS Benchmarks) **Clearance Requirements:** + Must have a current/active TS/SCI with Polygraph **Physical Requirements:** + The person in this position must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations. 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 # R64755 Posting Date 12/12/2025 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 Senior Principal Cyber Security Engineer to join our team in Chantilly, VA. This role supports enterprise-wide cybersecurity operations by providing advanced engineering and technical expertise across Comply-to-Connect (C2C) solutions in both classified and unclassified environments. Responsibilities include but are not limited to: * You will engineer, design, implement, integrate, and sustain Comply-to-Connect (C2C) deployment support to migrate, deploy, improve, and maintain C2C services. * You will manage and maintain appliances, applications, servers, and supporting infrastructure in both unclassified and classified environments. * You will coordinate with the network service provider to develop and maintain network architecture diagrams. * You will evaluate and recommend changes and/or technology upgrades to improve performance, ensure standardization, and align with industry best practices. * You will monitor and investigate C2C performance and faults and recommend improvements to system reliability and performance. * You will interact with team members and customers at multiple levels to gather, supply, and coordinate technical information. * You will support Assessment and Authorization activities related to cybersecurity technologies where applicable. Minimum Qualifications: * A Bachelor's degree or 4+ additional years of cyber experience in lieu of a degree * 10+ years of cyber experience * Experience with technologies involved in large-scale enterprise network deployments and data centers * Hands-on experience deploying and/or supporting enterprise security software products such as firewalls, IPS, Anti-Virus solutions, application firewalls, high availability solutions, network management systems, and virtual systems * Knowledge of Windows and Linux systems, general operating system security practices, TCP/IP networking, 802.1x, and network security concepts * An active IAT Level II (GSEC, Security+, SSCP, or CCNA-Security) certification or the ability to obtain one within six months of hire Preferred Qualifications: * Experience implementing and using complex software products that involve multiple components * Real-time, enterprise-level C2C expertise, including vendor-agnostic services, open-source trends, and proficiency in DoD integration, engineering, and sustainment processes * Experience with Cisco Identity Services Engine (ISE) * Familiarity with tools such as Nmap, Nessus, and tcpdump Clearance Requirements: * Must have a current/active TS/SCI with CI Polygraph Physical Requirements: * The person in this position must be able to remain in a stationary position 50% of the time. * Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and/or virtual communication, which may involve delivering presentations. 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 # R64758 Posting Date 12/12/2025 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 Principal Cyber Security Engineer to join our team in Chantilly, VA. This role supports the Comply-to-Connect (C2C) mission by engineering and sustaining secure network infrastructures across classified and unclassified environments. You will work alongside cyber experts to develop solutions that enhance network compliance and security posture across DoD systems. Responsibilities include but are not limited to: * Engineer, design, implement, integrate, and sustain Comply-to-Connect (C2C) deployment support to migrate, deploy, improve, and maintain C2C services * Manage and maintain appliances, applications, servers, and supporting infrastructure in both classified and unclassified environments * Coordinate with the network service provider to develop and maintain network architecture diagrams * Evaluate and recommend changes and/or technology upgrades to address performance, standardization, and industry best practices * Monitor and investigate C2C performance and faults and recommend improvements * Interact with other team members and customers at multiple levels to gather, supply, or coordinate information * Support Assessment and Authorization activities related to cybersecurity technologies, where applicable Minimum Qualifications: * Bachelor's degree or 4+ years of additional cyber experience in lieu of degree * 7+ years of cyber experience * Experience with technologies involved in large-scale enterprise network deployments and data centers * Experience deploying and/or supporting enterprise security software products such as firewalls, IPS, anti-virus solutions, application firewalls, high availability solutions, network management systems, and virtual systems * Knowledge of Windows and Linux systems, general operating system security practices, TCP/IP networking, 802.1x, and network security concepts * IAT Level II certification (GSEC, Security+, SSCP, or CCNA-Security) or ability to obtain within 6 months of hire Preferred Qualifications: * Experience implementing and using complex software products involving multiple integrated components * Real-time, enterprise-level C2C expertise including vendor-agnostic services, open-source trends, and proficiency in DoD integration, engineering, and sustainment processes * Experience with Cisco Identity Services Engine (ISE) * Experience with tools such as Nmap, Nessus, and tcpdump Clearance Requirements: * Must have a current/active TS/SCI with CI Polygraph Physical Requirements: * The person in this position must be able to remain in a stationary position 50% of the time * Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers via email, phone, and/or virtual communication, which may involve delivering presentations 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 # R64812 Posting Date 12/12/2025 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 Senior Splunk Cyber Security Engineer to join our team in Chantilly, VA. In this role, you will support a mission-critical initiative and contribute directly to cybersecurity operations through the administration and engineering of a large enterprise Splunk environment. This position is ideal for professionals with strong hands-on experience in system integration, data management, and cyber defense initiatives. You will play a key role in maintaining and tuning Splunk systems, while collaborating with technical teams and cyber analysts across a dynamic enterprise environment. Responsibilities include, but are not limited to: * Managing the day-to-day operation of large enterprise Splunk deployments * Troubleshooting data collection issues and resolving system conditions affecting stability or integrity * Deploying and maintaining both supported and unsupported Splunk add-ons * Executing Splunk Enterprise upgrades and patches * Configuring and deploying Splunk forwarders using centralized management tools * Maintaining and tuning Splunk Enterprise Security (ES) content and performance * Managing knowledge objects, data models, dashboards, alerts, and operational content * Supporting API integrations and external system connectivity * Developing and maintaining detailed engineering and compliance documentation * Contributing to Splunk deployment and architecture diagrams and system documentation * Enforcing role-based access controls and operational security policies * Collaborating with cyber analysts and engineering teams to improve detection and response capabilities * Applying relevant security policies, standards, and technical guidelines to ensure compliance Minimum Qualifications: * Bachelor's degree, or 4+ additional years of cybersecurity experience in lieu of a degree * 5+ years of experience in an enterprise and/or cybersecurity-focused environment * Experience with Splunk administration and engineering * Experience with Splunk Enterprise Security (ES) operations and configurations * Proficiency with Unix and Windows environments * DoD 8570 IAT Level II certification (e.g., Security+, CCNA-Security, GSEC) Preferred Qualifications: * Splunk certifications such as Architect, Consultant I/II, Admin, or Power User * Experience with scripting or programming languages (e.g., Bash, Python, Java, Perl, .NET) * Familiarity with developing and deploying operational and security use cases within Splunk Clearance Requirements: * Must have a current/active TS/SCI with CI Polygraph Physical Requirements: * Must be able to remain in a stationary position 50% of the time * Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers via email, phone, or virtual communication, which may involve delivering presentations 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 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

MANTECH seeks a motivated, career and customer-oriented **Cyber Security Analyst** to join our team **onsite** in **Herndon, VA or Reston, VA** in support of a high-priority mission at one of our National Intelligence Customers **.** **Responsibilities include but are not limited to:** + Responsible for supporting the acceptance of an Authorization to Operate (ATO) for the new Modern Data Platform (MDP) transformation + Support the documenting and navigating the customer's accreditation process for ATO + Work closely with Security Engineers to ensure security solutions are meeting customer accreditation requirements and following security controls + Will use RMF (Risk Management Framework) NIST 800-53, NISPOM, and ICDs for cybersecurity and information security protocols to drive tasking and ensure compliance + ISSE/ISSO tasking in support of documenting and navigating the customer's accreditation process for ATO **Minimum Qualifications:** + Bachelor's degree in a related field OR additional equivalent work experience + 5+ years of experience relevant to this position + Experience with Software Development Lifecycle, application security, Cloud principles and engineering + Expert in System Accreditation process and protocols within the Intelligence Community + Experience with NIST 800-53 and implementing Risk Management Framework + Understanding of vulnerability assessment tools like Rapid7 or Nessus + Knowledge of User Access Monitoring and Identity Access Management + Experience creating and reviewing system design documents and workflows **Preferred Qualifications:** + Experience with Terraform, SIEM and AI/ML Governance + Knowledge of cross-domain solutions, Zero Trust, and/or IDP (Identity Provider) integration skills + DoD 8570-compliant certification (e.g., Security+, CYSA+, CEH, or CISSP) + Experience with security tools such as Splunk, CrowdStrike, or Wireshark + Familiarity with SCAP tools, STIGs, or automated compliance reporting + Knowledge of incident response and digital forensics processes **Clearance Requirements:** + Must have active TS/SCI with Polygraph **Physical Requirements:** + Must be able to remain in a stationary position 50% of the time + Needs to occasionally move about inside the office to access file cabinets, office machinery, etc. + 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.

General information Requisition # R62505 Posting Date 08/19/2025 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! * This is for a future opportunity* MANTECH seeks a motivated, career and customer-oriented Cyber Security Analyst to join our team onsite in Herndon, VA or Reston, VA in support of a high-priority mission at one of our National Intelligence Customers. Responsibilities include but are not limited to: * Responsible for supporting the acceptance of an Authorization to Operate (ATO) for the new Modern Data Platform (MDP) transformation * Support the documenting and navigating the customer's accreditation process for ATO * Work closely with Security Engineers to ensure security solutions are meeting customer accreditation requirements and following security controls * Will use RMF (Risk Management Framework) NIST 800-53, NISPOM, and ICDs for cybersecurity and information security protocols to drive tasking and ensure compliance * ISSE/ISSO tasking in support of documenting and navigating the customer's accreditation process for ATO Minimum Qualifications: * Bachelor's degree in a related field OR additional equivalent work experience * 5+ years of experience relevant to this position * Experience with Software Development Lifecycle, application security, Cloud principles and engineering * Expert in System Accreditation process and protocols within the Intelligence Community * Experience with NIST 800-53 and implementing Risk Management Framework * Understanding of vulnerability assessment tools like Rapid7 or Nessus * Knowledge of User Access Monitoring and Identity Access Management * Experience creating and reviewing system design documents and workflows Preferred Qualifications: * Experience with Terraform, SIEM and AI/ML Governance * Knowledge of cross-domain solutions, Zero Trust, and/or IDP (Identity Provider) integration skills * DoD 8570-compliant certification (e.g., Security+, CYSA+, CEH, or CISSP) * Experience with security tools such as Splunk, CrowdStrike, or Wireshark * Familiarity with SCAP tools, STIGs, or automated compliance reporting * Knowledge of incident response and digital forensics processes Clearance Requirements: * Must have active TS/SCI with Polygraph Physical Requirements: * Must be able to remain in a stationary position 50% of the time * Needs to occasionally move about inside the office to access file cabinets, office machinery, etc. * 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.

General information Requisition # R64178 Posting Date 11/21/2025 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! * This is for a future opportunity* MANTECH seeks a motivated, career and customer-oriented Cyber Security Analyst to join our team onsite in Herndon, VA or Reston, VA in support of a high-priority mission at one of our National Intelligence Customers. Responsibilities include but are not limited to: * Responsible for supporting the acceptance of an Authorization to Operate (ATO) for the new Modern Data Platform (MDP) transformation * Support the documenting and navigating the customer's accreditation process for ATO * Work closely with Security Engineers to ensure security solutions are meeting customer accreditation requirements and following security controls * Will use RMF (Risk Management Framework) NIST 800-53, NISPOM, and ICDs for cybersecurity and information security protocols to drive tasking and ensure compliance * ISSE/ISSO tasking in support of documenting and navigating the customer's accreditation process for ATO Minimum Qualifications: * Bachelor's degree in a related field OR additional equivalent work experience * 5+ years of experience relevant to this position * Experience with Software Development Lifecycle, application security, Cloud principles and engineering * Expert in System Accreditation process and protocols within the Intelligence Community * Experience with NIST 800-53 and implementing Risk Management Framework * Understanding of vulnerability assessment tools like Rapid7 or Nessus * Knowledge of User Access Monitoring and Identity Access Management * Experience creating and reviewing system design documents and workflows Preferred Qualifications: * Experience with Terraform, SIEM and AI/ML Governance * Knowledge of cross-domain solutions, Zero Trust, and/or IDP (Identity Provider) integration skills * DoD 8570-compliant certification (e.g., Security+, CYSA+, CEH, or CISSP) * Experience with security tools such as Splunk, CrowdStrike, or Wireshark * Familiarity with SCAP tools, STIGs, or automated compliance reporting * Knowledge of incident response and digital forensics processes Clearance Requirements: * Must have active TS/SCI with Polygraph Physical Requirements: * Must be able to remain in a stationary position 50% of the time * Needs to occasionally move about inside the office to access file cabinets, office machinery, etc. * 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.