Jobs and Careers
MA

Information Systems Security Engineer

ManTech
United Statesfull_timeVerifiedPosted 17 Jun 2026

About the role

General information

Requisition #
R68760
Locations
USA-VA-Stafford
Posting Date
06/16/2026
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 seeks a motivated, career and customer-oriented Information Systems Security Engineer to join our team in Stafford, VA. 

Responsibilities include but are not limited to:

  • Create, update, maintain, and interpret required Body of Evidence (BOE) documentation. 
  • Work with management, internal teams, and Sponsor’s authorities to successfully navigate the Sponsor’s accreditation process for all systems. 
  • Document responses to required controls and update a robust library of documentation, including network diagrams for cyber defense capabilities.
  • Maintain, update, and conduct routine vulnerability scanning across all Sponsor networks. 
  • Maintain system baselines and configuration management items, including security event monitoring policies.

Minimum Qualifications:

  • Bachelor’s degree and at least at least 4+ years of progressively responsible experience in Information Systems Security.  A minimum of 7+ years’ experience without a degree.
  • Significant experience navigating the Sponsor's accreditation process and ICD 503 requirements, specifically regarding A&A Body of Evidence (BOE) documentation. 
  • Significant experience meeting security requirements in the Sponsor's environment or similar high-stakes environments. 
  • Experience working across large teams to drive a security agenda for complex, intertwined systems and data flows. 
  • Experience inventorying complex networks and managing documentation for security compliance, patching, and centralized authentication.

Preferred Qualifications:

  • Certified Information Systems Security Professional (CISSP certification). 
  • Experience with the Sponsor’s primary cyber risk and compliance automation tools. 
  • Self-starter with excellent people skills who can work across teams to drive change throughout an organization.

Clearance Requirements:

  • Must have an active / current TS/SCI security clearance.

Physical Requirements:<

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Company

ManTech

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