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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Information System Security Officer - **Company:** Mantech International Corporation - **Location:** Chantilly, VA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Cyber Security, Information Systems, Identity and Access Management, Information Security Management, Information Systems Security Architecture Professional, Nmap, Office Suite, Information Technology, Tenable Nessus - **Published:** August 31, 2026 - **Apply:** https://www.dice.com/job-detail/dd461719-4a4c-4bd0-b1e1-90a775bbdb1f ## About the Role * 7+ years serving as an Information Systems Security Officer (ISSO) at a cleared facility * 9+ years? experience in a computer science or Cybersecurity related field * Hold at least one of the following Information Assurance Management (IAM) Level III certifications: Certified Information Systems Security Professional (CISSP), Global Information Security Professional (GISP), Certified Information System Manager (CISM), or the CompTIA Advanced Security Practitioner (CASP) or equivalent certifications * Familiarity with the use and operation of security tools including Tenable Nessus and/or Security Center, IBM Guardium, HP Weblnspect, Network Mapper (NMAP), and/or similar applications Preferred Qualifications: * A bachelor\'s or advanced degree in Computer Science, Cybersecurity, or other cyber discipline Clearance Requirements: * Must have a current/active Top Secret clearance and be willing and able to obtain SCI prior to starting this position. * Selected candidate must be willing to undergo a Polygraph. Physical Requirements: * Must be able to remain in a stationary position 50% * Needs to occasionally move about inside the office to access file cabinets, office machinery, etc. * Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer * Often positions self to maintain computers in the lab, including under the desks and in the server closet * Frequently communicates with co-workers, management and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations. ## Description * Ensure the day-to-day implementation, oversight, continuous monitoring, and maintenance of the security configuration, practices, and procedures for each IS and that selected security controls are implemented and operating as intended during all phases of the IS lifecycle * Provide liaison support between the system owner and other IS security personnel * Ensure that system security documentation is developed, maintained, reviewed, and updated on a continuous basis; Conduct required IS vulnerability scans according to risk assessment parameters * Manage the risks to ISs and other FBI assets by coordinating appropriate correction or mitigation actions and oversee and track the timely completion of (POAMs). Coordinate system owner concurrence for correction or mitigation actions * Monitor security controls for FBI ISs to maintain security Authorized to Operate (ATO); Upload all security control evidence to the Governance, Risk, and Compliance (GRC) application to support security control implementation during the monitoring phase * Ensure that changes to an FBI IS, its environment, and/or operational needs that may affect the authorization status are reported to the system owner and IS Security Manager (ISSM) * Ensure the removal and retirement of ISs being decommissioned in coordination with the system owner, ISSM, and ISSR; Working knowledge of the National Institute of Standards and Technology (NIST) Risk Management Framework (RMF) and ATO processes ## Related Videos - [Thinking Differently - How to Make Money from Cyber Attacks & Cheats](https://www.wearedevelopers.com/videos/745-thinking-differently-how-to-make-money-from-cyber-attacks-cheats) - [One Platform Could Not Fit Them All](https://www.wearedevelopers.com/videos/1919-one-platform-could-not-fit-them-all) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [How Sparking Developer Joy Unlocks Developer Productivity](https://www.wearedevelopers.com/videos/613-how-sparking-developer-joy-unlocks-developer-productivity) - [Cyber Security: Small, and Large!](https://www.wearedevelopers.com/videos/259-cyber-security-small-and-large) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking) - [From developer to manager – what does it take to become an engineering manager?](https://www.wearedevelopers.com/magazine/42-from-developer-to-manager-what-does-it-take-to-become-an-engineering-manager) - [Dev Digest 216: CyberSec + Mythos, Stack Overflow for Agents & DOOM in TTF](https://www.wearedevelopers.com/magazine/728-dev-digest-216-cybersec-mythos-stack-overflow-for-agents-doom-in-ttf)