Network Technician jobs at SAIC

MANTECH is seeking a motivated, career and customer-oriented Network Engineer to join our team in Chantilly, VA. This is a position requiring onsite work at customer locations within the local area (up to 10% travel). Responsibilities include but are not limited to: Designing and integrating comprehensive network, VoIP, VTC, and data center solutions, adhering to security guidelines and customer specifications to ensure robust and secure communication infrastructures. Managing the end-to-end integration of black and red networks, overseeing design, installation, maintenance, and coordination of a growing network with multiple external services to support operational needs. Receives a moderate level of guidance and direction working with other network engineers to resolve problems. Helps in diagnosing and resolving complex issues related to customer sites, telecommunications circuits, routing, switching, VoIP, VTC, network encryption devices, and Cisco data center/security to maintain network stability and performance Diagnosing and resolving complex issues related to customer sites, telecommunications circuits, routing, switching, VoIP, VTC, network encryption devices, and Cisco data center/security to maintain network stability and performance. Developing and maintaining detailed documentation, diagrams, and standard operating procedures to facilitate knowledge sharing and efficient network management. Providing expert guidance, training, and support to network administrators, service desk personnel, and junior engineers to enhance team capabilities and operational effectiveness. Minimum Qualifications: Bachelor's degree in Computer Science, Network Engineering, or equivalent field, demonstrating a strong academic foundation in related disciplines. 1.5 years of experience is equivalent to 1 year of college. 3-4 years of experience in networking, including VoIP, VTC, data circuits, network encryption devices (e.g., General Dynamics TACLANE), and virtualization technologies. Proficiency in dynamic routing protocols such as OSPF and BGP, with a deep understanding of MPLS and DMVPN Hub and Spoke technology for efficient network routing. DoD 8140 IAT Level II certification: SecurityCE and Computing Environment (CE) certification in Cisco technology (CCNA Voice) required. Valid US Drivers License with the ability to travel up to 10% locally to customer sites. Preferred Qualifications: Cisco Collaboration, Data Center, or Security certifications, indicating advanced expertise and specialized knowledge in relevant Cisco technologies. Experience implementing or troubleshooting VMware NSX-T virtualized networking and security platform developed by VMware. It enables automated implementation of network policies, network objects, isolation, and micro-segmentation. Clearance Requirements: Must have an active DoD TS/SCI with the ability to obtain a 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

General information Requisition # R63524 Posting Date 10/06/2025 Security Clearance Required Public Trust/Suitability Remote Type Fully Remote 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 Network Administration Engineer in South Burlington, VT or Camp Springs, MD. This position will be fully remote. Responsibilities include but are not limited to: * Support network automation processes and procedures for configuration, management, testing, deployment, and operational support for virtual and physical devices with various scripting methods. Works with an experienced team of network engineers in performing vulnerability and fault analysis on enterprise perimeter devices, and developing and implementing system remediation and recovery plans * Use Maestro collaboration tools such as JIRA, Confluence to manage and document daily work efforts within an Agile methodology * Build network configurations and connections, monitors and maintains network performance. Maintains worldwide networking environment by updating system configuration and directing system installation. * Work autonomously on assigned tasks as well as collaboratively on larger projects across teams. * Defines, documents, and enforces system standards. Troubleshoot network disruptions, outages and security incidents. Install, configure and support network / firewall infrastructure within the enterprise * Configure firewall rules (source, destination, port, protocol) as well as Layer7 based rules. Creation / maintain firewall object library and application definitions. Network hardware configuration / performance tuning * Utilize ServiceNow ticket and incident management system and incorporate automations with other management systems. Function as member of team overseeing SNOW ticket queue to resolve escalation tickets from operations support tier. Minimum Qualifications: * 5 + years of enterprise network experience. * Strong documentation skills using MS Office applications. * Professional track record of enterprise network engineering LAN, WAN, WLAN, SDWAN. * Experience with IPAM management (preferably Infoblox) and firewall configuration auditing / cleanup (preferably Palo Alto, Panorama). * Strong skills in MS Office suite especially Word, Excel, Visio in the management and documentation of network design and administration. * Experience with cloud AWS/Azure as well as on-premise virtualization platforms (VMWare: ESXi, NSX and Hyper-V). Preferred Qualifications: * Bachelor's degree. * CCNP, CCNA, PCNSA, PCNSE. * Experience administration of Infoblox. * Experience administering Palo Alto firewalls. * Experience supporting government contracts. Clearance Requirements: * Must be a U.S. Citizen and be able to obtain and maintain a DHS EOD Suitability prior to starting this position. Physical Requirements: * Office work, typically sedentary with some movement around the office. * Ability to travel to support network troubleshooting or installs (rare). The projected compensation range for this position is $102,200.00-$169,500.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections. The projected compensation range for this position is $102,200.00-$169,500.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections. 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 # R62612 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 IT Systems Administrator to join our team in Chantilly, VA. Responsibilities include but are not limited to: * Providing end-user support to personnel utilizing ITD IT systems. * Triaging help desk tickets for a broad range of service requests to include file transfers, assistance with desktops and peripheral equipment, account management, and other user-focused incidents. * Installation, accountability, maintenance, and decommission of physical desktop, data center equipment and other IT assets. * Performing general operations & maintenance for COTS/GOTS hardware and software. Minimum Qualifications: * Education: Bachelor's degree in Computer Science, Systems Engineering, or a related IT discipline. An associate's degree with seven years of experience may be substituted. * Certification: Current DoD 8570 IAT II certification (e.g., Security+, SSCP) or the ability to obtain one within 180 days. * System Experience: Experience with both Windows and Linux operating systems. * End-User Support: Experience providing help-desk support for common desktop and server issues and with installing and configuring physical equipment. * Network & Software Management: Ability to provide technical support in the management of networks, software, hardware, configurations, and architectures, including performing software installations and upgrades. * Documentation & Compliance: Experience with Intelligence Community Directive (ICD) 503 and system Assessment and Authorization (A&A) procedures/processes, as well as writing clear, concise, and user-friendly technical documentation. Clearance Requirements: * Must have a current/active TS/SCI w/Polygraph. Physical Requirements: * Must be able to remain in a stationary position 50% * Needs to occasionally move about inside the office to access file cabinets, office machinery, etc. * Frequently communicates with co-workers, management, and customers, which may involve delivering presentations. * Must be able to exchange accurate information in these situations. MANTECH International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation. If you need a reasonable accommodation to apply for a position with MANTECH, please email us at ******************* and provide your name and contact information.

**MANTECH** seeks a motivated, career and customer-oriented **IT Systems Administrator** to join our team in **Chantilly, VA.** **Responsibilities include but are not limited to:** + Providing end-user support to personnel utilizing ITD IT systems. + Triaging help desk tickets for a broad range of service requests to include file transfers, assistance with desktops and peripheral equipment, account management, and other user-focused incidents. + Installation, accountability, maintenance, and decommission of physical desktop, data center equipment and other IT assets. + Performing general operations & maintenance for COTS/GOTS hardware and software. **Minimum Qualifications:** + Education: Bachelor's degree in Computer Science, Systems Engineering, or a related IT discipline. An associate's degree with seven years of experience may be substituted. + Certification: Current DoD 8570 IAT II certification (e.g., Security+, SSCP) or the ability to obtain one within 180 days. + System Experience: Experience with both Windows and Linux operating systems. + End-User Support: Experience providing help-desk support for common desktop and server issues and with installing and configuring physical equipment. + Network & Software Management: Ability to provide technical support in the management of networks, software, hardware, configurations, and architectures, including performing software installations and upgrades. + Documentation & Compliance: Experience with Intelligence Community Directive (ICD) 503 and system Assessment and Authorization (A&A) procedures/processes, as well as writing clear, concise, and user-friendly technical documentation. **Clearance Requirements:** + Must have a current/active TS/SCI w/Polygraph. **Physical Requirements:** + Must be able to remain in a stationary position 50% + Needs to occasionally move about inside the office to access file cabinets, office machinery, etc. + 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 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: Continental US * * * **The Opportunity** : We are seeking an experienced NMS DBA Engineer to join our team. The successful candidate will be responsible for designing, implementing, optimizing, and maintaining the databases that support our network management systems, ensuring high performance, availability, and security of critical network data. **Responsibilities:** + Design, implement, and maintain database structures for network management systems + Optimize database performance through indexing, query tuning, and schema design + Develop and maintain data models that support network inventory, performance, and fault management + Implement and manage database backup, recovery, and data migration procedures + Plan and implement database upgrades, patches, and maintenance schedules. + Monitor database health, performance, and capacity, proactively addressing potential issues + Design and implement data integration and ETL processes between NMS and other enterprise systems + Ensure data integrity and consistency across multiple NMS databases + Develop and maintain database security policies and access controls + Collaborate with network engineers and application developers to support NMS functionality + Troubleshoot complex database issues and perform root cause analysis + Implement automation scripts for routine database maintenance tasks + Evaluate and recommend new database technologies and tools for NMS + Mentor junior database administrators and provide technical guidance to the team + Develop and maintain documentation for database structures, procedures, and best practices **Qualifications:** _Required:_ + Bachelor's degree in Computer Science, Information Technology, or equivalent work experience + 10+ years of related work experience + TS/SCI with Poly required + Expert knowledge of database management systems (e.g., PostgreSQL, Microsoft SQL Server, MariaDB/MySQL) + Strong SQL skills and experience with database performance tuning + Familiarity with network management platforms and their data requirements (e.g., Riverbed, SolarWinds, Network Node Manager) + Experience with large-scale databases and high-volume data processing + Knowledge of data modeling and normalization techniques + Familiarity with database monitoring tools (e.g., pg Admin, Prometheus, Grafana). + Proficiency in scripting languages (e.g., Python, Perl, Shell scripting) + Strong problem-solving and analytical skills + Excellent communication and teamwork abilities + Experience with database high availability and disaster recovery solutions _Desired:_ + Knowledge of data visualization tools (e.g., Tableau, Power BI) + Familiarity with containerization and microservices architectures + Experience with CI/CD pipelines and DevOps practices + Understanding of machine learning and AI applications in network management 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: $131,800 - $290,000 _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: Continental US * * * The Opportunity: We are seeking an experienced NMS DBA Engineer to join our team. The successful candidate will be responsible for designing, implementing, optimizing, and maintaining the databases that support our network management systems, ensuring high performance, availability, and security of critical network data. Responsibilities: * Design, implement, and maintain database structures for network management systems * Optimize database performance through indexing, query tuning, and schema design * Develop and maintain data models that support network inventory, performance, and fault management * Implement and manage database backup, recovery, and data migration procedures * Plan and implement database upgrades, patches, and maintenance schedules. * Monitor database health, performance, and capacity, proactively addressing potential issues * Design and implement data integration and ETL processes between NMS and other enterprise systems * Ensure data integrity and consistency across multiple NMS databases * Develop and maintain database security policies and access controls * Collaborate with network engineers and application developers to support NMS functionality * Troubleshoot complex database issues and perform root cause analysis * Implement automation scripts for routine database maintenance tasks * Evaluate and recommend new database technologies and tools for NMS * Mentor junior database administrators and provide technical guidance to the team * Develop and maintain documentation for database structures, procedures, and best practices Qualifications: Required: * Bachelor's degree in Computer Science, Information Technology, or equivalent work experience * 10+ years of related work experience * TS/SCI with Poly required * Expert knowledge of database management systems (e.g., PostgreSQL, Microsoft SQL Server, MariaDB/MySQL) * Strong SQL skills and experience with database performance tuning * Familiarity with network management platforms and their data requirements (e.g., Riverbed, SolarWinds, Network Node Manager) * Experience with large-scale databases and high-volume data processing * Knowledge of data modeling and normalization techniques * Familiarity with database monitoring tools (e.g., pg Admin, Prometheus, Grafana). * Proficiency in scripting languages (e.g., Python, Perl, Shell scripting) * Strong problem-solving and analytical skills * Excellent communication and teamwork abilities * Experience with database high availability and disaster recovery solutions Desired: * Knowledge of data visualization tools (e.g., Tableau, Power BI) * Familiarity with containerization and microservices architectures * Experience with CI/CD pipelines and DevOps practices * Understanding of machine learning and AI applications in network management 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: $131,800 - $290,000 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: None Type of Travel: None * * * **What You Will Do:** **Want to stretch your skills and knowledge in the Offensive Cyber domain? You will get to work with an agile, fast paced team focused on getting things done, attacking the nation's highest priority intelligence challenges by applying your creativity and cyber domain technical and operational mastery. In this role, you will perform malware analysis and reverse engineering in support of incident response, investigative analysis, and research on existing and emerging cyber threats. You will support incidents and investigations that will require you to "think like an adversary" as both an external actor and an insider risk. 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.** **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.** **More About the Role:** **You will work onsite with the client doing high-end and cutting edge cyber related work with small dynamic technical teams** **You will use open source tools such Metasploit, BurpSuite, nmap and Wireshark as well as proprietary tools** **to perform red** **teaming and penetration** **testing of the client's** **global network** **You will reverse engineer network layouts using data collected from the network itself to identify misconfigurations and to map out where various devices interconnect, communicate and what devices look like they may contribute toward the client's technical objective** **You will develop technical requirements for new tools or enhancements to existing tools and become the tools "champion" throughout the tool's life cycle** **You will document all work performed on the client's behalf daily where you will comment on what tools were used and devices that were identified and accessed** **You will pro-actively identify, define, and advocate technical processes, approaches, and concepts to enhance/improve exploitation efforts** **You will write and produce high-quality technical reports related to the scope, nature, and characteristics of the client's technical objective that is suitable for dissemination to both technical and nontechnical audiences** **You will analyze software, firmware and hardware using a variety of reverse engineering techniques to understand possible security vulnerabilities and potential misconfigurations, working closely with teammates who value innovation and execution** **You will performing in-depth analysis (dynamic/static) on malicious software based platforms to provide actionable intelligence; as appropriate, provide remediation recommendations** **You will analyze, disassemble, and reverse-engineer malicious code; documenting and transitioning results in reports, presentations, and technical exchanges** **You'll Bring These Qualifications:** **Active TS/SCI with required Polygraph clearance** **7+ years of related experience** **Worked with Ansible, Puppet or Chef for automation of deployment of server software packages** **Experience with programing languages such as Python, Shell, Assembly, C/C++** **Familiar with embedded Internet of Things systems, the protocols they use for discovery and communications and the dangers they can present** **Understand the concepts behind software defined radios (SDR) and how to capture and alter capture RF communications** **Ability to combine components into a functioning multi-layer network of heterogeneous devices and applications** **Working knowledge of Microsoft Windows Operating System and** **/or U*** **NIX** **Working knowledge database Administration and application development with Oracle, Postre** **s** **SQL, SQL Server, and/or MySQL** **These Qualifications Would be Nice to Have:** **Advanced GIAC and/or (ISC)2 network/cyber security specialties** **Familiar with 802.11, Bluetooth and LTE protocols and technologies** **Experience with wired telephony technology (hardware or core software)** **Familiar with mobile telephony technology (hardware or core software)** **Experience with ubiquitous core network device (switch/router/hub) technology (hardware or core software)** **What We Can Offer You:** **- We've been named a Best Place to Work by the Washington Post.** **- Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives.** **- We offer competitive benefits and learning and development opportunities.** **- We are mission-oriented and ever vigilant in aligning our solutions with the nation's highest priorities.** **- For over 60 years, the principles of CACI's unique, character-based culture have been the driving force behind our success.** 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: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local * * * The Opportunity: CACI is looking for a Network Infrastructure/System Administrator to join the Luke Team! You will support the customer's data communications network; maintain the network hardware and software as well as monitor the network to ensure availability to all system users; and perform the necessary maintenance to support network availability. You will need to be proficient in Cisco network solutions, as well as software defined networks and firewalls from AWS, Google, and Microsoft. The purpose of the Luke program, is to provide dev ops, applied technology investigations, operations and maintenance and infrastructure lifecycle support services across the ODNI's enterprise. Our support in NOVA and Bethesda includes software engineering/development, O&M, technology investigations, customer advocacy, business process engineering, and system design. Invent your future and make a lasting impact at CACI! Responsibilities: * Deploy, configure, maintain and monitor all active network equipment (Cisco routers, switches, firewalls) ensuring seamless network operations * Responsible for troubleshooting and resolving network issues, implementing security measures and proactively optimizing network performance * Monitor and resolve network related service tickets * Maintain Standard Operating Procedures (SOPs) and network design documentation * Setup user accounts, permissions and passwords * Perform network upgrades to maintain system integrity and overall availability * Support and administer third-party applications * Ensure security and efficiency of IT infrastructure following industry standards Qualifications: Required: * Active TS/SCI with Polygraph * Bachelor's degree in Computer Science, Engineering or similar field or similar experience * Experience working with and troubleshooting Cisco and/or Juniper network vendor platforms * Knowledge of and experience with networking technology and protocols, TCP/IP, Routing (static, OSPF, BGP, and policy-based), Firewalls (zone based polices and ACLs), SSH, VPNs * Knowledge of network management platforms such as Solarwinds * Demonstrated understanding of IPv4 networks * Experience with network device hardening in accordance with industry best practices * Knowledge of different operating systems (Microsoft, Unix, Linux, etc.) * Attention to detail, problem solving mindset, critical thinking and teamworking skills Desired: * Cisco CCNP or Juniper JCNIP certifications or skill level at minimum (Senior / Expert) * Experience with automating network tasks using Ansible or Python * Familiarity with cloud hosting solutions such as Amazon AWS, Microsoft Azure and Google Cloud * VMWare experience * CompTIA Network+, CCNP, CCNA certifications * ________________________________________________________________________________________ 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: $120,800 - $265,800 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: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local * * * **The Opportunity:** CACI is looking for a Network Infrastructure/System Administrator to join the Luke Team! You will support the customer's data communications network; maintain the network hardware and software as well as monitor the network to ensure availability to all system users; and perform the necessary maintenance to support network availability. You will need to be proficient in Cisco network solutions, as well as software defined networks and firewalls from AWS, Google, and Microsoft. The purpose of the Luke program, is to provide dev ops, applied technology investigations, operations and maintenance and infrastructure lifecycle support services across the ODNI's enterprise. Our support in NOVA and Bethesda includes software engineering/development, O&M, technology investigations, customer advocacy, business process engineering, and system design. Invent your future and make a lasting impact at CACI! **Responsibilities:** + Deploy, configure, maintain and monitor all active network equipment (Cisco routers, switches, firewalls) ensuring seamless network operations + Responsible for troubleshooting and resolving network issues, implementing security measures and proactively optimizing network performance + Monitor and resolve network related service tickets + Maintain Standard Operating Procedures (SOPs) and network design documentation + Setup user accounts, permissions and passwords + Perform network upgrades to maintain system integrity and overall availability + Support and administer third-party applications + Ensure security and efficiency of IT infrastructure following industry standards **Qualifications:** **_Required:_** + Active TS/SCI with Polygraph + Bachelor's degree in Computer Science, Engineering or similar field or similar experience + Experience working with and troubleshooting Cisco and/or Juniper network vendor platforms + Knowledge of and experience with networking technology and protocols, TCP/IP, Routing (static, OSPF, BGP, and policy-based), Firewalls (zone based polices and ACLs), SSH, VPNs + Knowledge of network management platforms such as Solarwinds + Demonstrated understanding of IPv4 networks + Experience with network device hardening in accordance with industry best practices + Knowledge of different operating systems (Microsoft, Unix, Linux, etc.) + Attention to detail, problem solving mindset, critical thinking and teamworking skills **Desired:** + Cisco CCNP or Juniper JCNIP certifications or skill level at minimum (Senior / Expert) + Experience with automating network tasks using Ansible or Python + Familiarity with cloud hosting solutions such as Amazon AWS, Microsoft Azure and Google Cloud + VMWare experience + CompTIA Network+, CCNP, CCNA certifications - **________________________________________________________________________________________** **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: $120,800 - $265,800 _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 **Network Administration Engineer** in **South Burlington, VT or Camp Springs, MD.** This position will be **fully remote.** **Responsibilities include but are not limited to:** + Support network automation processes and procedures for configuration, management, testing, deployment, and operational support for virtual and physical devices with various scripting methods. Works with an experienced team of network engineers in performing vulnerability and fault analysis on enterprise perimeter devices, and developing and implementing system remediation and recovery plans + Use Maestro collaboration tools such as JIRA, Confluence to manage and document daily work efforts within an Agile methodology + Build network configurations and connections, monitors and maintains network performance. Maintains worldwide networking environment by updating system configuration and directing system installation. + Work autonomously on assigned tasks as well as collaboratively on larger projects across teams. + Defines, documents, and enforces system standards. Troubleshoot network disruptions, outages and security incidents. Install, configure and support network / firewall infrastructure within the enterprise + Configure firewall rules (source, destination, port, protocol) as well as Layer7 based rules. Creation / maintain firewall object library and application definitions. Network hardware configuration / performance tuning + Utilize ServiceNow ticket and incident management system and incorporate automations with other management systems. Function as member of team overseeing SNOW ticket queue to resolve escalation tickets from operations support tier. **Minimum Qualifications:** + 5 + years of enterprise network experience. + Strong documentation skills using MS Office applications. + Professional track record of enterprise network engineering LAN, WAN, WLAN, SDWAN. + Experience with IPAM management (preferably Infoblox) and firewall configuration auditing / cleanup (preferably Palo Alto, Panorama). + Strong skills in MS Office suite especially Word, Excel, Visio in the management and documentation of network design and administration. + Experience with cloud AWS/Azure as well as on-premise virtualization platforms (VMWare: ESXi, NSX and Hyper-V). **Preferred Qualifications:** + Bachelor's degree. + CCNP, CCNA, PCNSA, PCNSE. + Experience administration of Infoblox. + Experience administering Palo Alto firewalls. + Experience supporting government contracts. **Clearance Requirements:** + Must be a U.S. Citizen and be able to obtain and maintain a DHS EOD Suitability prior to starting this position. **Physical Requirements:** + Office work, typically sedentary with some movement around the office. + Ability to travel to support network troubleshooting or installs (rare). 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 Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local Anticipated Posting End: There is not an anticipated end date for this posting since applications are needed on an ongoing basis. **The Opportunity** : Team CACI is seeking a Network Operations Center Engineer to support a diverse network infrastructure, including CAN, LAN, C&T, CORE, and WAN network. The role involves implementing, troubleshooting, and maintaining IT networks, encompassing daily operations, monitoring, and problem resolution for all network architecture and devices. The successful candidate will be directly responsible for supporting the Communications Mission Director and program's NOC leadership in maintaining the network. **Responsibilities:** + Provide problem identification, diagnosis, troubleshooting, and resolution of incidents and problems. + Perform shift work in support of 24x7x365 Network Operations Center + Provide support for the escalation and communication of status to the Communications Mission Director, NOC leadership, Service Providers, and other customers. + Provide support for the dispatch system and hardware problems and remains involved in the resolution process + Isolate and resolve of hardware and software problems involving the applications, the operating system, the hardware, the communications infrastructure, or any combination thereof + Monitor network performance and availability 24/7 + Respond to and resolve network incidents and outages as required per SLAs + Perform routine maintenance and upgrades on network systems + Configure and manage network devices (routers, switches, firewalls, etc.) + Implement and maintain network security measures + Create and maintain network documentation and standard operating procedures + Collaborate with other IT teams to resolve complex issues + Troubleshoot, maintain integrity and configure network components along with implementing operating systems enhancements to improve reliability and performance + Works individually and actively participates on integrated teams + Understands and applies more advanced concepts and processes to daily activities. + Assists more senior level technicians, specialists, and managers in their activities. + Clearly communicates, verbally and written **Qualifications:** + TS/SCI with Poly required + Bachelor's degree in Computer Science, Information Technology, or related field + 5+ years of related work experience + Strong knowledge of networking protocols (TCP/IP, OSPF, BGP, etc.) + Familiarity with network monitoring tools (e.g., SolarWinds, Nagios, PRTG) + Experience with Cisco networking equipment and configurations + Understanding of network security principles and best practices + Excellent problem-solving and analytical skills + Strong communication skills, both verbal and written + Ability to work in a fast-paced environment and handle multiple priorities 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 (***************************************************** . Since this position can be worked in more than one location, the range shown is the national average for the position. The proposed salary range for this position is: $75,200-$158,100 _CACI is_ _an Equal Opportunity Employer._ _All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any_ _other protected characteristic._

General information Requisition # R62598 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 IT Systems Engineer to join our team in Chantilly, VA. Responsibilities include but are not limited to: * Providing server/operating system centric knowledge for testing, deploying, integrating, and improving upon new and existing IT capabilities. * Assisting with recommendations related to understanding operating system dependencies, physical and virtual server environments, integration with infrastructure resources (e.g. storage and networking), and how to configure operating systems and applications in an efficient manner. * Maintaining platforms of common hypervisors and enterprise applications, including collaboration tools, Systems Information and Event Monitoring (SIEM) products, directory services, and automation technologies. * Identifying security vulnerabilities, testing and documenting security-relevant changes, and communicating with vendors to assess new technologies. Minimum Qualifications: * A Bachelor's degree in Computer Science, Systems Engineering, or a related IT discipline. An Associate's degree with an additional two years of experience may be substituted. * 5+ years of relevant experience in information technology, using software applications and tools to meet customer requirements. * Certification: A current DoD 8570 IAT II certification (e.g., Security+, SSCP) or the ability to obtain one within 180 days of hire. * Proven experience writing clear, concise, and user-friendly technical and training manuals, including documentation required for A&A IAW ICD 503. * Experience with Windows administration, Active Directory, administrative scripting languages, and the integration, deployment, troubleshooting, and maintenance of operating systems in a multi-domain environment. * Knowledge and experience with virtual infrastructure technologies, all components of Windows and Linux system infrastructure, Local Area Network/Wide Area Network technologies, Storage Area Network (SAN), clustering, and backup technologies. * Experience and proficiency with systems engineering concepts, principles, theories, and system modeling tools, along with the ability to travel domestically. Clearance Requirements: * Must have a current/active TS/SCI w/Polygraph. Physical Requirements: * Must be able to remain in a stationary position 50% * Needs to occasionally move about inside the office to access file cabinets, office machinery, etc. * Frequently communicates with co-workers, management, and customers, which may involve delivering presentations. * Must be able to exchange accurate information in these situations. MANTECH International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation. If you need a reasonable accommodation to apply for a position with MANTECH, please email us at ******************* and provide your name and contact information.

**MANTECH** seeks a motivated, career and customer-oriented **IT Systems Engineer** to join our team in **Chantilly, VA.** **Responsibilities include but are not limited to:** + Providing server/operating system centric knowledge for testing, deploying, integrating, and improving upon new and existing IT capabilities. + Assisting with recommendations related to understanding operating system dependencies, physical and virtual server environments, integration with infrastructure resources (e.g. storage and networking), and how to configure operating systems and applications in an efficient manner. + Maintaining platforms of common hypervisors and enterprise applications, including collaboration tools, Systems Information and Event Monitoring (SIEM) products, directory services, and automation technologies. + Identifying security vulnerabilities, testing and documenting security-relevant changes, and communicating with vendors to assess new technologies. **Minimum Qualifications:** + A Bachelor's degree in Computer Science, Systems Engineering, or a related IT discipline. An Associate's degree with an additional two years of experience may be substituted. + 5+ years of relevant experience in information technology, using software applications and tools to meet customer requirements. + Certification: A current DoD 8570 IAT II certification (e.g., Security+, SSCP) or the ability to obtain one within 180 days of hire. + Proven experience writing clear, concise, and user-friendly technical and training manuals, including documentation required for A&A IAW ICD 503. + Experience with Windows administration, Active Directory, administrative scripting languages, and the integration, deployment, troubleshooting, and maintenance of operating systems in a multi-domain environment. + Knowledge and experience with virtual infrastructure technologies, all components of Windows and Linux system infrastructure, Local Area Network/Wide Area Network technologies, Storage Area Network (SAN), clustering, and backup technologies. + Experience and proficiency with systems engineering concepts, principles, theories, and system modeling tools, along with the ability to travel domestically. **Clearance Requirements:** + Must have a current/active TS/SCI w/Polygraph. **Physical Requirements:** + Must be able to remain in a stationary position 50% + Needs to occasionally move about inside the office to access file cabinets, office machinery, etc. + 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.

Responsibilities Peraton is seeking a driven Network Engineer to join our dynamic Network and Unified Communications Architecture team of network and UC engineers in Arlington, VA. Peraton has served as the prime contractor for this program since its inception in the 1980's. We provide high-level government leaders with reliable secure voice, video, and fax communications anytime, anywhere, in any environment in support of day-to-day operations. We support a secure, worldwide, high-performance communications network comprised of real-time interactive applications allowing complex national and worldwide communications. Peraton provides the O&M of the network infrastructure and its components. We provide integration for development of hardware and software solutions, and engineering support for the delivery of system, network, software, and security solutions. In this role, the work is hands-on and you will support the creation and review of network designs, conduct hardware evaluations in a lab, and with vendors. We are seeking a proactive candidate who will not shy away from writing a test plan or reading through vendor's technical documents to solve a problem and write a resolution report. The ideal candidate shall possess either a Cisco Certified Network Associate (CCNA) Certification or a Cisco Certified Network Professional (CCNP) Certification. Specific hands-on technical experience with Cisco collaboration tools, Cisco Unified Communications Manager (CUCM)/ Cisco CallManager (CM), and Cisco Meeting Server (CMS) and Meeting Server/ VQ is highly desirable. The Network Engineer is responsible for but not limited to: Evaluate LAN/WAN performance and capacities to identify problem areas or bottlenecks. Perform a variety of network management services related to the operation, performance, or availability of data communications networks. Responsibility for overall performance and availability of networks Provide LAN/WAN support with skill in network analysis, integration, and tuning. Analyze client LANs/WANs, isolate source of problems recommends reconfiguration and implementation of new network hardware to increase performance. Work with customers and operations staff in scheduling preventive and emergency maintenance to include resolution of customer tickets. Support on-call duty on a as needed basis, in response to network outages after 6-9 months of service. Implement networking technologies and concepts (such as Layer 2 and Layer 3 protocols). Management of Voice over Internet Protocol (VoIP) phones, call managers, and gateways. Qualifications Required Qualifications: An active/current TS/SCI Security Clearance is required. Must be able to support 2nd or 3rd shift hours. Bachelor's degree in engineering (or similar technical field) and five (5) years relevant experience; or a Master's degree and three (3) years of relevant experience; or a PhD and zero (0) years of relevant experience; or a High School Diploma/GED and nine (9) years of relevant experience in the above-cited duties may be substituted in lieu of a completed higher education degree. Must possess either a CCNA Certification or a CCNP Certification. Must have experience with Aruba products. Experience and understanding with Cisco and Juniper devices, VLANs, VPNs, LAN/WAN technologies, and/or routing & switching. Experience in two (2) to three (3) of the following areas: Network troubleshooting Routers/switches Cisco IOS/Junos OS Firewalls NetScout/Wireshark or any other packet investigation/analysis tools SolarWinds monitoring or database tools Call Manager & unity or other OSCP, DNS, QoS, VPN Operational experience with local and wide area network infrastructures (including routers, firewalls, switches, servers, and related hardware). Previous experience supporting a Government and/or Department of Defense customer. Desired Qualifications: A current/valid IAT LVL III Certification (Security+CE, CCNP Security, CISA, CISSP, GCED, GCIH, and CCSP). Experience with Cisco Unified Communications Manager (formerly Cisco CallManager, now known as Cisco Unified CM or CUCM) and Cisco Meeting Server (CMS) platforms is highly desired. Experience and understanding of CCNA and CCNP layer 2 and 3 network configurations to include OSPF EIGRP, BGP, VLANS, and IPSEC enabled GRE tunnels as well as basic CallManger phone provisioning tasks. An Engineering degree with a networking focus. Ability to generate documentation that describes standard operating procedures, which will be used by help desk personnel. Experience with application of DoD IAVAs and STIGs. Proficient in network monitoring/management systems familiarity. Solid written and verbal communication skills. Strong investigative drive and listening skills, self-motivated individuals. The ability to work under pressure and be flexible with their time. Ability to prioritize and document tasks is a plus. Benefits: Peraton offers enhanced benefits to employees working on this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap and eligibility to participate in an attractive bonus plan. Peraton Overview Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world's leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can't be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we're keeping people around the world safe and secure. Target Salary Range $104,000 - $166,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual's experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. EEO EEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.

General information Requisition # R63690 Posting Date 10/09/2025 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 Lead Network and Infrastructure Engineer to join our team in Herndon, VA. The Lead Network and Infrastucture Engineer will design, implement, and maintain secure and scalable network infrastructure supporting federal clients. You will lead network architecture efforts, oversee implementation, and ensure compliance with government security standards across complex environments, as well as lead the strategic oversight of designing, implementing, and managing compute, storage, and networking as part of the greater project scope and infrastructure. This position plays a critical role in enabling high availability in support of the national security mission. Responsibilities include but are not limited to: * Design, deploy, and manage secure, scalable network and related infrastructure (compute, storage, etc.) solutions across enterprise and mission-critical environments. * Perform network capacity planning, performance tuning, and optimization. * Ensure network architecture and infrastructure complies with federal security standards for the respective national security customer (e.g., DISA STIGs, FISMA, FedRAMP, NIST 800-53). * Develop and maintain documentation including network and infrastructure diagrams, SOPs, and contingency plans. * Collaborate with cybersecurity, systems engineering, and cloud teams to align on end-to-end architecture, and to support implementation, maintenance and incident response. * Manage vendor relationships, evaluate tools, and implement new technologies as appropriate. * Support ATO/accreditation efforts and participate in security audits and assessments. * Provide escalation support and technical leadership during network incidents and outages. * Interact with other area Leads to understand dependencies and technical resources to craft a repeatable architecture solution. Minimum Qualifications: * Bachelor's degree in Computer Science, Engineering or related field OR additional equivalent work experience * 8+ years of experience in network engineering; 3+ years in a technical leadership role * Strong experience with Cisco, Juniper, or Palo Alto technologies * Expert level architecture creation and support experience; strong troubleshooting and documentation skills * Proficiency in routing/switching, VPNs, firewalls, and load balancing in enterprise and secure environments * Experience supporting federal networks and knowledge of RMF, DISA STIGs, or NIST 800-53 * Familiarity with Cloud network integrations (AWS, Azure, Oracle Cloud, etc.) * Experience with Terraform scripting or AWS/Cloud Formation * Prior experience supporting the Intelligence Community Preferred Qualifications: * Certifications: CCNP, CISSP, CEH, JNCIP, or similar * Experience with SD-WAN, Zero Trust architecture, or hybrid-Cloud networking * Knowledge of federal compliance frameworks (FedRAMP, FISMA, CMMC) 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.

**MANTECH** seeks a motivated, career and customer-oriented **Lead Network and Infrastructure Engineer** to join our team in **Herndon, VA.** The Lead Network and Infrastucture Engineer will design, implement, and maintain secure and scalable network infrastructure supporting federal clients. You will lead network architecture efforts, oversee implementation, and ensure compliance with government security standards across complex environments, as well as lead the strategic oversight of designing, implementing, and managing compute, storage, and networking as part of the greater project scope and infrastructure. This position plays a critical role in enabling high availability in support of the national security mission. **Responsibilities include but are not limited to:** + Design, deploy, and manage secure, scalable network and related infrastructure (compute, storage, etc.) solutions across enterprise and mission-critical environments. + Perform network capacity planning, performance tuning, and optimization. + Ensure network architecture and infrastructure complies with federal security standards for the respective national security customer (e.g., DISA STIGs, FISMA, FedRAMP, NIST 800-53). + Develop and maintain documentation including network and infrastructure diagrams, SOPs, and contingency plans. + Collaborate with cybersecurity, systems engineering, and cloud teams to align on end-to-end architecture, and to support implementation, maintenance and incident response. + Manage vendor relationships, evaluate tools, and implement new technologies as appropriate. + Support ATO/accreditation efforts and participate in security audits and assessments. + Provide escalation support and technical leadership during network incidents and outages. + Interact with other area Leads to understand dependencies and technical resources to craft a repeatable architecture solution. **Minimum Qualifications:** + Bachelor's degree in Computer Science, Engineering or related field OR additional equivalent work experience + 8+ years of experience in network engineering; 3+ years in a technical leadership role + Strong experience with Cisco, Juniper, or Palo Alto technologies + Expert level architecture creation and support experience; strong troubleshooting and documentation skills + Proficiency in routing/switching, VPNs, firewalls, and load balancing in enterprise and secure environments + Experience supporting federal networks and knowledge of RMF, DISA STIGs, or NIST 800-53 + Familiarity with Cloud network integrations (AWS, Azure, Oracle Cloud, etc.) + Experience with Terraform scripting or AWS/Cloud Formation + Prior experience supporting the Intelligence Community **Preferred Qualifications:** + Certifications: CCNP, CISSP, CEH, JNCIP, or similar + Experience with SD-WAN, Zero Trust architecture, or hybrid-Cloud networking + Knowledge of federal compliance frameworks (FedRAMP, FISMA, CMMC) **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, officemachinery, etc. + Frequently communicates with co-workers, management, and customers, which mayinvolve delivering presentations. Must be able to exchange accurate information inthese 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.

SAIC accepts applications on an ongoing basis and there is no deadline. SAIC is a premier Fortune 500 mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, civilian and intelligence markets includes secure high-end solutions in mission IT, enterprise IT, engineering services and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives. We are approximately 24,000 strong; driven by mission, united by purpose, and inspired by opportunities. SAIC is an Equal Opportunity Employer. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.5 billion. For more information, visit saic.com. For ongoing news, please visit our newsroom. SAIC is looking for Network Engineers with experience in US Navy IT networks to support the sustained operation and maintenance of a newly deployed naval enterprise transport network, ensuring 24/7/365 availability and reliability. The position will support end-to-end network, system, and element visibility; facilitate rapid operations, administration, maintenance, and provisioning to maintaining the operational integrity of a mission-critical network, requiring both technical expertise and a commitment to excellence in service delivery. Specific Duties Include: Provide Tier 2 level engineering operations support to quickly identify, triage, and address outages, analyzing symptoms and potential root causes to implement effective resolutions or escalate to Tier 3 support as required Utilize advanced monitoring tools and processes to oversee network infrastructure, monitor the performance and availability of managed services and systems across multiple exchange points, and ensure optimal performance Perform day to day maintenance, fixes, configuration corrections, software and hardware updates, and deployments Adhere to system and operational reporting obligations Operate and maintain the privileged access solutions Maintain continuous verification of failover processes and disaster recovery procedures Operate and maintain hardware upgrade process and procedures Update and maintain any software builds applicable to deployed equipment Enact change management for the solution Operate and maintain existing incident management processes Keep firmware, software updates and patches up to date for equipment Support the design, analysis, planning, modification and maintenance of the network and network components supporting data, voice and/or audio communication activities Support analysis of short/long term capacity needs for switching, routing transmission and signaling Conducts testing of network systems Support the evaluation of new network technologies to enhance capabilities of the network Required Education and Experience: Bachelor of Science degree in Computer Science or a related discipline and two (2) years relevant experience supporting a large network infrastructure 4 years of additional experience can be considered in lieu of degree Required Security Clearance: Active TS/SCI Required Skills and Experience: Experience required with\: Routing Protocols (OSPF, BGP); Access Control Lists; Layer 2 Switching; Spanning Tree; Packet Analysis; SPINE-LEAF architecture Experience with the following is a plus\: Arista switches; Palo Alto Firewalls; TAP and network visibility (i.e. Gigamon, NetScout); SD-WAN and Spine-Leaf Architecture; working with VLANs and VRFs; configuring IPSEC tunnels; and troubleshooting routing issues Working knowledge of SD-WAN, Routers, Switches, Firewalls, and Virtual Private Network devices Understanding of TCP/IP in regard to routing and subnetting Capable of supporting TACACS+ on Cisco ISE and ISE Cube Required Certifications: IAT Level II required (Sec +), CCNA/CCNP. Six-month waiver authorized to obtain Working Environment and Travel\: Able to work shifts to cover a 24x7 operational environment Able to cover on-call schedule on a rotating basis Travel up to 25% may be required

General information Requisition # R64104 Posting Date 11/04/2025 Security Clearance Required TS/SCI Remote Type Onsite Time Type Full time Description & Requirements Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we've been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now-protect and innovate with MANTECH! MANTECH is seeking a motivated, career and customer-oriented Network Engineer to join our team in Chantilly, VA. This is a position requiring onsite work at customer locations within the local area (up to 10% travel). Responsibilities include but are not limited to: * Designing and integrating comprehensive network, VoIP, VTC, and data center solutions, adhering to security guidelines and customer specifications to ensure robust and secure communication infrastructures. * Managing the end-to-end integration of black and red networks, overseeing design, installation, maintenance, and coordination of a growing network with multiple external services to support operational needs. * Receives a moderate level of guidance and direction working with other network engineers to resolve problems. * Helps in diagnosing and resolving complex issues related to customer sites, telecommunications circuits, routing, switching, VoIP, VTC, network encryption devices, and Cisco data center/security to maintain network stability and performance * Diagnosing and resolving complex issues related to customer sites, telecommunications circuits, routing, switching, VoIP, VTC, network encryption devices, and Cisco data center/security to maintain network stability and performance. * Developing and maintaining detailed documentation, diagrams, and standard operating procedures to facilitate knowledge sharing and efficient network management. * Providing expert guidance, training, and support to network administrators, service desk personnel, and junior engineers to enhance team capabilities and operational effectiveness. Minimum Qualifications: * Bachelor's degree in Computer Science, Network Engineering, or equivalent field, demonstrating a strong academic foundation in related disciplines. 1.5 years of experience is equivalent to 1 year of college. * 3-4 years of experience in networking, including VoIP, VTC, data circuits, network encryption devices (e.g., General Dynamics TACLANE), and virtualization technologies. * Proficiency in dynamic routing protocols such as OSPF and BGP, with a deep understanding of MPLS and DMVPN Hub and Spoke technology for efficient network routing. * DoD 8140 IAT Level II certification: SecurityCE and Computing Environment (CE) certification in Cisco technology (CCNA Voice) required. * Valid US Drivers License with the ability to travel up to 10% locally to customer sites. Preferred Qualifications: * Cisco Collaboration, Data Center, or Security certifications, indicating advanced expertise and specialized knowledge in relevant Cisco technologies. * Experience implementing or troubleshooting VMware NSX-T virtualized networking and security platform developed by VMware. It enables automated implementation of network policies, network objects, isolation, and micro-segmentation. Clearance Requirements: * Must have an active DoD TS/SCI with the ability to obtain a 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.

**MANTECH** is seeking a motivated, career and customer-oriented **Network Engineer** to join our team in **Chantilly, VA** . This is a position requiring onsite work at customer locations within the local area (up to 10% travel). **Responsibilities include but are not limited to:** + Designing and integrating comprehensive network, VoIP, VTC, and data center solutions, adhering to security guidelines and customer specifications to ensure robust and secure communication infrastructures. + Managing the end-to-end integration of black and red networks, overseeing design, installation, maintenance, and coordination of a growing network with multiple external services to support operational needs. + Receives a moderate level of guidance and direction working with other networkengineers to resolve problems. + Helps in diagnosing and resolving complex issues related to customer sites,telecommunications circuits, routing, switching, VoIP, VTC, network encryption devices, and Cisco data center/security to maintain network stability and performance + Diagnosing and resolving complex issues related to customer sites, telecommunications circuits, routing, switching, VoIP, VTC, network encryption devices, and Cisco data center/security to maintain network stability and performance. + Developing and maintaining detailed documentation, diagrams, and standard operating procedures to facilitate knowledge sharing and efficient network management. + Providing expert guidance, training, and support to network administrators, service desk personnel, and junior engineers to enhance team capabilities and operational effectiveness. **Minimum Qualifications:** + Bachelor's degree in Computer Science, Network Engineering, or equivalent field, demonstrating a strong academic foundation in related disciplines. 1.5 years of experience is equivalent to 1 year of college. + 3-4 years of experience in networking, including VoIP, VTC, data circuits, network encryption devices (e.g., General Dynamics TACLANE), and virtualization technologies. + Proficiency in dynamic routing protocols such as OSPF and BGP, with a deep understanding of MPLS and DMVPN Hub and Spoke technology for efficient network routing. + DoD 8140 IAT Level II certification: SecurityCE and Computing Environment (CE) certification in Cisco technology (CCNA Voice) required. + Valid US Drivers License with the ability to travel up to 10% locally to customer sites. **Preferred Qualifications:** + Cisco Collaboration, Data Center, or Security certifications, indicating advanced expertise and specialized knowledge in relevant Cisco technologies. + Experience implementing or troubleshooting VMware NSX-T virtualized networking and security platform developed by VMware. It enables automated implementation of network policies, network objects, isolation, and micro-segmentation. **Clearance Requirements:** + Must have an active DoD TS/SCI with the ability to obtain a 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.