{"schemaVersion":"jobsearcher.job.v1","id":"bb0774e5c3797ee7e1d5d5b6","url":"https://jobsearcher.com/jobs/bb0774e5c3797ee7e1d5d5b6","canonicalUrl":"https://jobsearcher.com/jobs/bb0774e5c3797ee7e1d5d5b6","title":"Cybersecurity Engineer","description":"Clearance Level\nTop Secret/SCI\nCategory\nCyber and IT Risk Management\nLocations\nSpringfield, Virginia\nSt Louis, Missouri\n(Onsite Workplace)\nKey Skills For Success\nPlan of Action and Milestones (POA&M)\nRMF\nSystem Security Plans\nREQ#: RQ224518\nPublic Trust: None\nRequisition Type: Regular\nYour Impact\nOwn your opportunity to serve as a critical component of our nation’s safety and security. Make an impact by using your expertise to protect our country from threats.\nJob Description\nGDIT is your place. You make it your own by embracing autonomy, seizing opportunity, and being trusted to deliver your best every day. We think. We act. We deliver. There is no challenge we can’t turn into opportunity. Our work depends on TS/SCI level cleared Cybersecurity Engineer joining our team to support our Intelligence customer in Springfield, VA or St. Louis, MO.\nThis position supports the Geospatial Services & Solutions business area to provide high-quality, cost-effective solutions to the customer. As part of the GSS Team the cybersecurity engineer’s expertise is needed to support a sophisticated enterprise environment.\n\nHOW A CYBERSECURITY ENGINEER WILL MAKE AN IMPACT\nThis role is responsible for implementing and maintaining cybersecurity controls across enterprise infrastructure, including Windows, Linux, network, virtualization, and cloud environments. The successful candidate will execute RMF continuous monitoring activities, implement STIGs, remediate vulnerabilities, manage POA&Ms, and support Assessment & Authorization (A&A) efforts in accordance with NIST SP 800-53, ICD 503, and DoW security requirements. This is a hands-on technical role requiring experience hardening systems, responding to security findings, supporting enterprise security tools, and collaborating with infrastructure teams to maintain a secure, compliant, and resilient operating environment.\nSPECIFIC DUTIES AND RESPONSIBILITIES\nAct as the representative of the Information System Security Manager (ISSM), ensuring compliance with DoW and Intelligence Community (IC) information security policies, procedures, and directives.\nSupport efforts to operate, maintain, and dispose of information system materials in accordance with RMF, NIST, ICD 503, and applicable security directives, policies, and System Security Plans (SSPs).\nImplement and maintain Security Technical Implementation Guides (STIGs) across Windows, Linux (RHEL), network, virtualization, and cloud environments to ensure compliance with DoW security requirements.\nExecute technical remediation activities to address security findings identified through ACAS, STIG reviews, vulnerability scans, and security assessments.\nManage assigned Plan of Action and Milestones (POA&Ms) by implementing technical solutions, validating remediation efforts, documenting completion evidence, and supporting POA&M closure.\nSupport RMF continuous monitoring activities by implementing required security controls, maintaining A&A documentation, and ensuring compliance with NIST SP 800-53 and ICD 503 requirements.\nGenerate and implement required cybersecurity awareness training, ensuring users understand their security responsibilities prior to system access.\nInitiate protective and corrective measures when security incidents, vulnerabilities, or compliance issues are identified.\nEnsure IA hardware, software, and operating systems comply with approved security configuration guides and organizational security baselines.\nImplement and enforce IA policies and procedures as defined by RMF authorization packages and A&A documentation. .\nAbility to work on multiple projects simultaneously in a dynamic, fast-paced, team-oriented environment.\nPerform Operations & Sustainment (O&S) functions for enterprise network security infrastructure, including firewalls, web gateways, mail gateways, IDS/IPS, load balancers, performance monitoring tools, and management systems.\nPerform maintenance, hardening, patching, and advanced configuration of security infrastructure to protect enterprise networks from emerging cyber threats.\nSupport and secure Cloud Infrastructure, including AWS-based technologies.\nUtilize enterprise security tools such as ACAS, HBSS, Carbon Black, Tanium, RedSeal, and related cybersecurity platforms.\nConduct forensic network traffic and log analysis to investigate incidents, isolate issues, and respond to analyst alerts.\nRespond to escalated cybersecurity and infrastructure troubleshooting requests.\nMaintain and administer network infrastructure standards, documentation, and fault-tolerant configurations.\nPresent monitoring, testing, compliance, and remediation results and reports as required.\nPerform and support integration testing, security validation, and operational readiness activities.\nDevelop automation and scripting solutions using PowerShell, Bash, Python, or similar languages to improve security operations and compliance.\nCollaborate with systems, network, and cloud engineering teams to implement secure architectures and operational best practices.\nParticipate in special projects as required.\nRequired Skills\nExperience implementing and supporting the Risk Management Framework (RMF) throughout the system lifecycle.\nStrong knowledge of NIST SP 800-53, ICD 503, and DoW cybersecurity policies.\nHands-on experience implementing, maintaining, and remediating Security Technical Implementation Guides (STIGs) across Windows, Linux (RHEL), network, virtualization\nExperience executing technical remediation activities for vulnerabilities identified through ACAS, STIG compliance reviews, and other vulnerability management tools.\nExperience writing, maintaining, and closing Plan of Action and Milestones (POA&Ms), including documenting remediation evidence and validating corrective actions.\nExperience implementing and maintaining Assessment & Authorization (A&A) documentation and supporting RMF continuous monitoring activities.\nExperience with security tools such as ACAS, HBSS, Carbon Black, Tanium, RedSeal, or equivalent.\nExperience installing, hardening, deploying, documenting, and troubleshooting network perimeter security technologies.\nExperience scripting with Unix/Linux (RHEL), Bash, Python, and PowerShell.\nStrong analytical, troubleshooting, documentation, and communication skills.\nAbility to work independently while managing multiple priorities in a fast-paced environment.\nDesired Skills\nExperience supporting NGA TESR environments.\nExperience supporting Intelligence Community Assessment & Authorization processes.\nExperience with security automation and Infrastructure-as-Code.\nExperience with enterprise SIEM platforms such as Splunk or Elastic.\nDoW 8570/8140 compliant certifications such as Security+, CISSP, CAP, or CASP+.\n\nWHAT YOU’LL NEED TO SUCCEED:\nEDUCATION\nBachelor's Degree in Computer Science, Engineering, Cybersecurity, Information Technology, or a related technical discipline, or an equivalent combination of education, technical training, or relevant military/work experience.\nQUALIFICATIONS\n8–10 years of experience supporting Information Assurance, Cybersecurity, Information System Security Officer (ISSO), or Cybersecurity Engineering functions within DoW or Intelligence Community environments.\nActive TS/SCI clearance required and eligibility to obtain a CI poly\nLocation: On Customer Site\nUS Citizenship Required\n\nGDIT IS YOUR PLACE\nAt GDIT, the mission is our purpose, and our people are at the center of everything we do.\nGrowth: AI-powered career tool that identifies career steps and learning opportunities\nSupport: An internal mobility team focused on helping you achieve your career goals\nRewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off\nCommunity: Award-winning culture of innovation and a military-friendly workplace\n\nOWN YOUR OPPORTUNITY\nExplore a career in cyber at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your focus on defending and protecting what matters.\n#RoverGSS\nWork Requirements\nYears of Experience\n5 + years of related experience\nmay vary based on technical training, certification(s), or degree\nCertification\nTravel Required\nNone\nCitizenship\nU.S. Citizenship Required\nSalary and Benefit Information\nThe likely salary range for this position is $142,792 - $142,600. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.\nOur Identity Verification Process\nAs part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.\nAbout Our Work\nWe are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development.\nJoin our Talent Community to stay up to date on our career opportunities and events at gdit.com/tc.\nEqual Opportunity Employer / Individuals with Disabilities / Protected Veterans","company":"General Dynamics Information Technology","rawCompany":"generaldynamicsinformationtechnology","city":"St Louis","state":"MO","isRemote":false,"isActive":false,"createdAt":"2026-08-11T16:08:23.066Z","occupations":[{"code":"15-1299.05","title":"Information Security Engineers","slug":"information-security-engineers"},{"code":"15-1212.00","title":"Information Security Analysts","slug":"information-security-analysts"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"}],"industries":[{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"541690","title":"Other Scientific and Technical Consulting Services","slug":"other-scientific-and-technical-consulting-services"},{"code":"541519","title":"Other Computer Related Services","slug":"other-computer-related-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Cybersecurity Engineer","description":"Clearance Level\nTop Secret/SCI\nCategory\nCyber and IT Risk Management\nLocations\nSpringfield, Virginia\nSt Louis, Missouri\n(Onsite Workplace)\nKey Skills For Success\nPlan of Action and Milestones (POA&M)\nRMF\nSystem Security Plans\nREQ#: RQ224518\nPublic Trust: None\nRequisition Type: Regular\nYour Impact\nOwn your opportunity to serve as a critical component of our nation’s safety and security. Make an impact by using your expertise to protect our country from threats.\nJob Description\nGDIT is your place. You make it your own by embracing autonomy, seizing opportunity, and being trusted to deliver your best every day. We think. We act. We deliver. There is no challenge we can’t turn into opportunity. Our work depends on TS/SCI level cleared Cybersecurity Engineer joining our team to support our Intelligence customer in Springfield, VA or St. Louis, MO.\nThis position supports the Geospatial Services & Solutions business area to provide high-quality, cost-effective solutions to the customer. As part of the GSS Team the cybersecurity engineer’s expertise is needed to support a sophisticated enterprise environment.\n\nHOW A CYBERSECURITY ENGINEER WILL MAKE AN IMPACT\nThis role is responsible for implementing and maintaining cybersecurity controls across enterprise infrastructure, including Windows, Linux, network, virtualization, and cloud environments. The successful candidate will execute RMF continuous monitoring activities, implement STIGs, remediate vulnerabilities, manage POA&Ms, and support Assessment & Authorization (A&A) efforts in accordance with NIST SP 800-53, ICD 503, and DoW security requirements. This is a hands-on technical role requiring experience hardening systems, responding to security findings, supporting enterprise security tools, and collaborating with infrastructure teams to maintain a secure, compliant, and resilient operating environment.\nSPECIFIC DUTIES AND RESPONSIBILITIES\nAct as the representative of the Information System Security Manager (ISSM), ensuring compliance with DoW and Intelligence Community (IC) information security policies, procedures, and directives.\nSupport efforts to operate, maintain, and dispose of information system materials in accordance with RMF, NIST, ICD 503, and applicable security directives, policies, and System Security Plans (SSPs).\nImplement and maintain Security Technical Implementation Guides (STIGs) across Windows, Linux (RHEL), network, virtualization, and cloud environments to ensure compliance with DoW security requirements.\nExecute technical remediation activities to address security findings identified through ACAS, STIG reviews, vulnerability scans, and security assessments.\nManage assigned Plan of Action and Milestones (POA&Ms) by implementing technical solutions, validating remediation efforts, documenting completion evidence, and supporting POA&M closure.\nSupport RMF continuous monitoring activities by implementing required security controls, maintaining A&A documentation, and ensuring compliance with NIST SP 800-53 and ICD 503 requirements.\nGenerate and implement required cybersecurity awareness training, ensuring users understand their security responsibilities prior to system access.\nInitiate protective and corrective measures when security incidents, vulnerabilities, or compliance issues are identified.\nEnsure IA hardware, software, and operating systems comply with approved security configuration guides and organizational security baselines.\nImplement and enforce IA policies and procedures as defined by RMF authorization packages and A&A documentation. .\nAbility to work on multiple projects simultaneously in a dynamic, fast-paced, team-oriented environment.\nPerform Operations & Sustainment (O&S) functions for enterprise network security infrastructure, including firewalls, web gateways, mail gateways, IDS/IPS, load balancers, performance monitoring tools, and management systems.\nPerform maintenance, hardening, patching, and advanced configuration of security infrastructure to protect enterprise networks from emerging cyber threats.\nSupport and secure Cloud Infrastructure, including AWS-based technologies.\nUtilize enterprise security tools such as ACAS, HBSS, Carbon Black, Tanium, RedSeal, and related cybersecurity platforms.\nConduct forensic network traffic and log analysis to investigate incidents, isolate issues, and respond to analyst alerts.\nRespond to escalated cybersecurity and infrastructure troubleshooting requests.\nMaintain and administer network infrastructure standards, documentation, and fault-tolerant configurations.\nPresent monitoring, testing, compliance, and remediation results and reports as required.\nPerform and support integration testing, security validation, and operational readiness activities.\nDevelop automation and scripting solutions using PowerShell, Bash, Python, or similar languages to improve security operations and compliance.\nCollaborate with systems, network, and cloud engineering teams to implement secure architectures and operational best practices.\nParticipate in special projects as required.\nRequired Skills\nExperience implementing and supporting the Risk Management Framework (RMF) throughout the system lifecycle.\nStrong knowledge of NIST SP 800-53, ICD 503, and DoW cybersecurity policies.\nHands-on experience implementing, maintaining, and remediating Security Technical Implementation Guides (STIGs) across Windows, Linux (RHEL), network, virtualization\nExperience executing technical remediation activities for vulnerabilities identified through ACAS, STIG compliance reviews, and other vulnerability management tools.\nExperience writing, maintaining, and closing Plan of Action and Milestones (POA&Ms), including documenting remediation evidence and validating corrective actions.\nExperience implementing and maintaining Assessment & Authorization (A&A) documentation and supporting RMF continuous monitoring activities.\nExperience with security tools such as ACAS, HBSS, Carbon Black, Tanium, RedSeal, or equivalent.\nExperience installing, hardening, deploying, documenting, and troubleshooting network perimeter security technologies.\nExperience scripting with Unix/Linux (RHEL), Bash, Python, and PowerShell.\nStrong analytical, troubleshooting, documentation, and communication skills.\nAbility to work independently while managing multiple priorities in a fast-paced environment.\nDesired Skills\nExperience supporting NGA TESR environments.\nExperience supporting Intelligence Community Assessment & Authorization processes.\nExperience with security automation and Infrastructure-as-Code.\nExperience with enterprise SIEM platforms such as Splunk or Elastic.\nDoW 8570/8140 compliant certifications such as Security+, CISSP, CAP, or CASP+.\n\nWHAT YOU’LL NEED TO SUCCEED:\nEDUCATION\nBachelor's Degree in Computer Science, Engineering, Cybersecurity, Information Technology, or a related technical discipline, or an equivalent combination of education, technical training, or relevant military/work experience.\nQUALIFICATIONS\n8–10 years of experience supporting Information Assurance, Cybersecurity, Information System Security Officer (ISSO), or Cybersecurity Engineering functions within DoW or Intelligence Community environments.\nActive TS/SCI clearance required and eligibility to obtain a CI poly\nLocation: On Customer Site\nUS Citizenship Required\n\nGDIT IS YOUR PLACE\nAt GDIT, the mission is our purpose, and our people are at the center of everything we do.\nGrowth: AI-powered career tool that identifies career steps and learning opportunities\nSupport: An internal mobility team focused on helping you achieve your career goals\nRewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off\nCommunity: Award-winning culture of innovation and a military-friendly workplace\n\nOWN YOUR OPPORTUNITY\nExplore a career in cyber at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your focus on defending and protecting what matters.\n#RoverGSS\nWork Requirements\nYears of Experience\n5 + years of related experience\nmay vary based on technical training, certification(s), or degree\nCertification\nTravel Required\nNone\nCitizenship\nU.S. Citizenship Required\nSalary and Benefit Information\nThe likely salary range for this position is $142,792 - $142,600. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.\nOur Identity Verification Process\nAs part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.\nAbout Our Work\nWe are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development.\nJoin our Talent Community to stay up to date on our career opportunities and events at gdit.com/tc.\nEqual Opportunity Employer / Individuals with Disabilities / Protected Veterans","datePosted":"2026-08-11T16:08:23.066Z","dateModified":"2026-08-11T16:08:23.066Z","hiringOrganization":{"@type":"Organization","name":"General Dynamics Information Technology","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"St Louis","addressRegion":"MO","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"bb0774e5c3797ee7e1d5d5b6"},"url":"https://jobsearcher.com/jobs/bb0774e5c3797ee7e1d5d5b6"}}