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11 jobs found in Quantico

Wargame Developer
ManTech International Quantico, Virginia
ManTech International seeks a Wargame Developer to design, build, and refine advanced defense-focused wargames and simulations that support U.S. national security missions. In this role, you will translate operational concepts into realistic, data-driven models, implement game logic and AI behaviors, and integrate analytics to assess outcomes. You'll collaborate with engineers, analysts, and mission experts in an agile environment, ensuring high performance, usability, and security. ManTech offers a mission-focused, growth-oriented culture with strong training, competitive pay, and comprehensive benefits.
08/06/2026
Full time
ManTech International seeks a Wargame Developer to design, build, and refine advanced defense-focused wargames and simulations that support U.S. national security missions. In this role, you will translate operational concepts into realistic, data-driven models, implement game logic and AI behaviors, and integrate analytics to assess outcomes. You'll collaborate with engineers, analysts, and mission experts in an agile environment, ensuring high performance, usability, and security. ManTech offers a mission-focused, growth-oriented culture with strong training, competitive pay, and comprehensive benefits.
System Administrator
ManTech International Quantico, Virginia
ManTech International seeks a System Administrator to support mission-critical national security systems within our Information Technology & Technical Support organization. In this role, you will manage and secure Windows and Linux servers, configure Active Directory, monitor performance, and resolve complex infrastructure issues. You'll implement patches, backups, and automation to ensure availability and compliance with federal standards. Collaborating closely with cybersecurity and network teams, you'll help protect sensitive environments while contributing to ManTech's culture of innovation, integrity, and respect for individual contributions.
08/06/2026
Full time
ManTech International seeks a System Administrator to support mission-critical national security systems within our Information Technology & Technical Support organization. In this role, you will manage and secure Windows and Linux servers, configure Active Directory, monitor performance, and resolve complex infrastructure issues. You'll implement patches, backups, and automation to ensure availability and compliance with federal standards. Collaborating closely with cybersecurity and network teams, you'll help protect sensitive environments while contributing to ManTech's culture of innovation, integrity, and respect for individual contributions.
Operations Research Systems Analyst
ManTech International Quantico, Virginia
ManTech International seeks an Operations Research Systems Analyst to support complex national security missions. You will apply operations research, statistics, and modeling to optimize systems and mission workflows, analyze large, multi-source data sets, and develop decision-support tools for defense and intelligence customers. Responsibilities include building and validating analytical models, conducting what-if analyses, creating dashboards and reports, and briefing technical and non-technical stakeholders. Collaborate with engineers, cyber, and IT teams in a mission-focused, learning-oriented, and highly ethical environment.
08/04/2026
Full time
ManTech International seeks an Operations Research Systems Analyst to support complex national security missions. You will apply operations research, statistics, and modeling to optimize systems and mission workflows, analyze large, multi-source data sets, and develop decision-support tools for defense and intelligence customers. Responsibilities include building and validating analytical models, conducting what-if analyses, creating dashboards and reports, and briefing technical and non-technical stakeholders. Collaborate with engineers, cyber, and IT teams in a mission-focused, learning-oriented, and highly ethical environment.
ManTech
Senior Security Control Assessor
ManTech Quantico, Virginia
MANTECH seeks a motivated, career and customer-oriented Senior Security Control Assessor (SCA) to join our team in Washington, D.C., Chantilly, VA, Quantico, VA, or Huntsville, AL. Responsibilities include, but are not limited to: Provides overall configuration management infrastructure and environment to the product development team. Developing or modifying CM plans, policies, and procedures tailored to the complexity and scope of the developmental or operational system Ensure that FBI ISs are operated, maintained, and disposed of in accordance with the internal security policies and practices outlined in the approved Security Assessment and Authorization (SAA) package. Manage the SAA process for new FBI ISs and legacy FBI ISs migrating into the GRC application Provide baseline security controls to the system owner, contingent upon the IS's security categorization, type of information processed and entity type. Provide a recommendation to the Authorizing Official, in consultation with the system owner, regarding systems' impact levels and ISs' authorization boundary Initiate, coordinate, and recommend to the FBI Authorizing Official all Interconnection Security Agreement (ISAs), Memorandum of Understanding (MOUs), and Memorandum of Agreement (MOAs) that permit the interconnection of an FBI IS with any non-FBI or joint-use IS Perform an independent review of the System Security Plan (SSP) and make approval decisions. Request and negotiate the level of testing required for an IS with the Enterprise Information Security Section and the FBI Authorizing Official. Coordinate IS security inspections, tests, and reviews with the Security and system owner. Submit the final SAA package to the FBI Authorizing Official for a security ATO decision. Supporting developmental and operational systems, creating and maintaining configuration baselines. Performing change control and configuration audits Ensure that the Security ATO Electronic Communication (EC) is serialized into Sentinel under the applicable case file number. Advise the FBI Authorizing Official of IS vulnerabilities and residual risks. Minimum Qualifications: A minimum of 7 years of experience serving as an ISSR or in a similar role at a cleared facility A minimum of 10 years' experience in a computer science or cybersecurity related field Must hold at least one of the following certifications: Certified Information Systems Security Professional (CISSP), Global Information Security Professional (GISP), or the CompTIA Advanced Security Practitioner (CASP) or other certifications exemplifying skill sets such as those described in DoD Instruction 8570.1. IAM Level III proficiency. Experience with the use and operation of security tools including Tenable Nessus and/or Security Center, IBM Guardium, HP Weblnspect, Network Mapper (NMAP), and/or similar applications Preferred Qualifications: Bachelor's or advanced degree in Computer Science, Cybersecurity, or other cyber discipline Security Clearance Requirements: Must have a current/active Top Secret security clearance and be willing and able to obtain SCI eligibility prior to starting this position. Must be willing to sit for a polygraph if required. Physical Requirements: Must be able to remain in a stationary position 50%. Needs to occasionally move about inside the office to access file cabinets, office machinery, etc. Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer. Often positions self to maintain computers in the lab, including under the desks and in the server closet. Frequently communicates with co-workers, management and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.
08/04/2026
Full time
MANTECH seeks a motivated, career and customer-oriented Senior Security Control Assessor (SCA) to join our team in Washington, D.C., Chantilly, VA, Quantico, VA, or Huntsville, AL. Responsibilities include, but are not limited to: Provides overall configuration management infrastructure and environment to the product development team. Developing or modifying CM plans, policies, and procedures tailored to the complexity and scope of the developmental or operational system Ensure that FBI ISs are operated, maintained, and disposed of in accordance with the internal security policies and practices outlined in the approved Security Assessment and Authorization (SAA) package. Manage the SAA process for new FBI ISs and legacy FBI ISs migrating into the GRC application Provide baseline security controls to the system owner, contingent upon the IS's security categorization, type of information processed and entity type. Provide a recommendation to the Authorizing Official, in consultation with the system owner, regarding systems' impact levels and ISs' authorization boundary Initiate, coordinate, and recommend to the FBI Authorizing Official all Interconnection Security Agreement (ISAs), Memorandum of Understanding (MOUs), and Memorandum of Agreement (MOAs) that permit the interconnection of an FBI IS with any non-FBI or joint-use IS Perform an independent review of the System Security Plan (SSP) and make approval decisions. Request and negotiate the level of testing required for an IS with the Enterprise Information Security Section and the FBI Authorizing Official. Coordinate IS security inspections, tests, and reviews with the Security and system owner. Submit the final SAA package to the FBI Authorizing Official for a security ATO decision. Supporting developmental and operational systems, creating and maintaining configuration baselines. Performing change control and configuration audits Ensure that the Security ATO Electronic Communication (EC) is serialized into Sentinel under the applicable case file number. Advise the FBI Authorizing Official of IS vulnerabilities and residual risks. Minimum Qualifications: A minimum of 7 years of experience serving as an ISSR or in a similar role at a cleared facility A minimum of 10 years' experience in a computer science or cybersecurity related field Must hold at least one of the following certifications: Certified Information Systems Security Professional (CISSP), Global Information Security Professional (GISP), or the CompTIA Advanced Security Practitioner (CASP) or other certifications exemplifying skill sets such as those described in DoD Instruction 8570.1. IAM Level III proficiency. Experience with the use and operation of security tools including Tenable Nessus and/or Security Center, IBM Guardium, HP Weblnspect, Network Mapper (NMAP), and/or similar applications Preferred Qualifications: Bachelor's or advanced degree in Computer Science, Cybersecurity, or other cyber discipline Security Clearance Requirements: Must have a current/active Top Secret security clearance and be willing and able to obtain SCI eligibility prior to starting this position. Must be willing to sit for a polygraph if required. Physical Requirements: Must be able to remain in a stationary position 50%. Needs to occasionally move about inside the office to access file cabinets, office machinery, etc. Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer. Often positions self to maintain computers in the lab, including under the desks and in the server closet. Frequently communicates with co-workers, management and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.
Windows Server Administrator
ManTech International Quantico, Virginia
ManTech International seeks a Windows Server Administrator to support critical national security missions. In this role, you will install, configure, secure, and maintain Windows servers and related services in enterprise and classified environments. Responsibilities include Active Directory administration, Group Policy management, patching, backup and recovery, performance monitoring, and troubleshooting complex issues. You will automate routine tasks with PowerShell, support virtualization platforms, document configurations, and collaborate with cyber and systems engineering teams to ensure system availability, compliance, and mission readiness while upholding strict security standards.
08/04/2026
Full time
ManTech International seeks a Windows Server Administrator to support critical national security missions. In this role, you will install, configure, secure, and maintain Windows servers and related services in enterprise and classified environments. Responsibilities include Active Directory administration, Group Policy management, patching, backup and recovery, performance monitoring, and troubleshooting complex issues. You will automate routine tasks with PowerShell, support virtualization platforms, document configurations, and collaborate with cyber and systems engineering teams to ensure system availability, compliance, and mission readiness while upholding strict security standards.
Senior Cloud Information System Security Engineer
ManTech International Quantico, Virginia
ManTech International seeks a Senior Cloud Information System Security Engineer to secure mission-critical cloud environments for U.S. defense and intelligence customers. You will design and implement cloud security architectures, apply NIST RMF and FedRAMP controls, and develop documentation to support ATOs across AWS, Azure, or other leading platforms. Partner with engineers and mission teams to assess risks, implement mitigations, automate security monitoring, and drive continuous compliance. Leverage ManTech's strong training, veteran-friendly programs, and collaborative culture to grow your expertise while protecting national security.
08/04/2026
Full time
ManTech International seeks a Senior Cloud Information System Security Engineer to secure mission-critical cloud environments for U.S. defense and intelligence customers. You will design and implement cloud security architectures, apply NIST RMF and FedRAMP controls, and develop documentation to support ATOs across AWS, Azure, or other leading platforms. Partner with engineers and mission teams to assess risks, implement mitigations, automate security monitoring, and drive continuous compliance. Leverage ManTech's strong training, veteran-friendly programs, and collaborative culture to grow your expertise while protecting national security.
Senior Security Control Assessor
ManTech International Quantico, Virginia
ManTech International seeks a Senior Security Control Assessor to support federal and defense clients. In this role, you will plan and execute security control assessments, evaluate NIST and RMF compliance, and document risks and findings to strengthen mission-critical systems. You will collaborate with engineers, ISSOs, and cyber teams to recommend remediation, validate fixes, and support authorization decisions. ManTech's mission-focused, learning-oriented culture offers robust training, career progression, and opportunities to work with advanced cyber and enterprise IT technologies while directly supporting national security.
08/04/2026
Full time
ManTech International seeks a Senior Security Control Assessor to support federal and defense clients. In this role, you will plan and execute security control assessments, evaluate NIST and RMF compliance, and document risks and findings to strengthen mission-critical systems. You will collaborate with engineers, ISSOs, and cyber teams to recommend remediation, validate fixes, and support authorization decisions. ManTech's mission-focused, learning-oriented culture offers robust training, career progression, and opportunities to work with advanced cyber and enterprise IT technologies while directly supporting national security.
Information System Security Engineer
ManTech International Quantico, Virginia
At ManTech, we are dedicated to enhancing the security and integrity of our nation's technological frameworks. As an Information System Security Engineer, you will play a pivotal role in safeguarding our digital infrastructure, supporting vital national security programs. Working in a highly dynamic and technologically sophisticated environment, you will implement, manage, and monitor security measures for the protection of computer systems, networks, and information. This role involves assessing system vulnerabilities, developing mitigation strategies, and collaborating with cross-functional teams to ensure robust security protocols.
08/04/2026
Full time
At ManTech, we are dedicated to enhancing the security and integrity of our nation's technological frameworks. As an Information System Security Engineer, you will play a pivotal role in safeguarding our digital infrastructure, supporting vital national security programs. Working in a highly dynamic and technologically sophisticated environment, you will implement, manage, and monitor security measures for the protection of computer systems, networks, and information. This role involves assessing system vulnerabilities, developing mitigation strategies, and collaborating with cross-functional teams to ensure robust security protocols.
Linux Server Administrator
ManTech International Quantico, Virginia
ManTech International seeks a Linux Server Administrator to support mission-critical systems for U.S. defense, intelligence, and federal agencies. You will install, configure, secure, and maintain Linux servers; monitor performance; troubleshoot complex issues; and implement patches and automation using Bash or Python. Role includes managing users and access controls, supporting virtualization, backup and recovery, and documenting changes. Collaborate with cyber and engineering teams in a mission-focused, high-integrity environment with strong training, certification support, and career growth opportunities.
08/01/2026
Full time
ManTech International seeks a Linux Server Administrator to support mission-critical systems for U.S. defense, intelligence, and federal agencies. You will install, configure, secure, and maintain Linux servers; monitor performance; troubleshoot complex issues; and implement patches and automation using Bash or Python. Role includes managing users and access controls, supporting virtualization, backup and recovery, and documenting changes. Collaborate with cyber and engineering teams in a mission-focused, high-integrity environment with strong training, certification support, and career growth opportunities.
Simulation Developer
ManTech International Quantico, Virginia
ManTech International seeks a Simulation Developer to build advanced models and simulations supporting defense and aerospace missions within our IT & Digital Solutions organization. In this role, you will design, implement, and validate physics-based and mission-level simulations using languages such as C++ and Python, collaborating with engineers and cyber experts to solve complex national security challenges. You will follow modern software engineering best practices, contribute to innovation in modeling and analytics, and document results for technical and mission stakeholders. At ManTech, you'll join a mission-focused, collaborative culture that values integrity, continuous learning, and technical excellence. You'll have access to robust training, clear career paths, and opportunities to work with cutting-edge tools and frameworks in cyber, enterprise IT, and systems engineering. This position offers competitive pay and benefits, a veteran-friendly environment, and the chance to directly impact critical U.S. defense and intelligence operations while advancing your simulation and software engineering skills.
08/01/2026
Full time
ManTech International seeks a Simulation Developer to build advanced models and simulations supporting defense and aerospace missions within our IT & Digital Solutions organization. In this role, you will design, implement, and validate physics-based and mission-level simulations using languages such as C++ and Python, collaborating with engineers and cyber experts to solve complex national security challenges. You will follow modern software engineering best practices, contribute to innovation in modeling and analytics, and document results for technical and mission stakeholders. At ManTech, you'll join a mission-focused, collaborative culture that values integrity, continuous learning, and technical excellence. You'll have access to robust training, clear career paths, and opportunities to work with cutting-edge tools and frameworks in cyber, enterprise IT, and systems engineering. This position offers competitive pay and benefits, a veteran-friendly environment, and the chance to directly impact critical U.S. defense and intelligence operations while advancing your simulation and software engineering skills.
Network Analyst
ManTech International Quantico, Virginia
ManTech International seeks a Network Analyst to support mission-critical Information Technology & Data Management operations. In this role, you will monitor, analyze, and secure complex enterprise and cloud networks for U.S. defense, intelligence, and federal civilian customers. Working in a mission-focused, collaborative culture, you will troubleshoot performance and security issues, configure routers, switches, firewalls, and VPNs, and support implementation of federal cyber and network standards. ManTech offers robust training, clear career paths, competitive pay and benefits, and the opportunity to grow your technical expertise while contributing directly to national security.
08/01/2026
Full time
ManTech International seeks a Network Analyst to support mission-critical Information Technology & Data Management operations. In this role, you will monitor, analyze, and secure complex enterprise and cloud networks for U.S. defense, intelligence, and federal civilian customers. Working in a mission-focused, collaborative culture, you will troubleshoot performance and security issues, configure routers, switches, firewalls, and VPNs, and support implementation of federal cyber and network standards. ManTech offers robust training, clear career paths, competitive pay and benefits, and the opportunity to grow your technical expertise while contributing directly to national security.
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