Jobs and Careers
MA
Principal Cyber Security Engineer
ManTechUnited Statesfull_timeVerifiedPosted 4 Jun 2026
About the role
General information
Requisition #
R68186
Locations
USA-VA-Chantilly
Posting Date
06/03/2026
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!
MANTECH seeks a motivated, career and customer-oriented Principal Cyber Security Engineer to join our team in Chantilly, VA.
The Principal Cyber Security Engineer will leverage their strong technical background and knowledge to support the Sponsor’s system accreditation efforts, to include creating Body of Evidence (BOE) documentation, responding to/implementing/documenting required controls, and completing required tasks/actions.
Responsibilities include but are not limited to:
- Designing, implementing, and maintaining complex systems and infrastructure that support critical business objectives.
- Deploying solutions to proactively mitigate cyber threats to customer networks while collaborating with cross-functional teams to ensure security and performance requirements.
- Troubleshooting and resolving complex system issues and making recommendations to senior management to improve the overall security posture.
- Planning and executing system upgrades, patches, and migrations while developing robust disaster recovery plans and procedures.
- Developing and implementing system monitoring and alerting strategies and mentoring junior team members on emerging technologies and industry trends.
- Assessing the performance of security controls within IT projects and evaluating potential system security risks to take appropriate corrective, mitigation, and recovery actions.
- Researching, evaluating, and providing feedback on problematic security trends and patterns in customer support requirements.
Minimum Qualifications:
- Bachelor’s degree or 4+ years of additional IT experience in lieu of degree
- 7+ years of cyber experience
- Experience navigating the Sponsor's accreditation process and ICD 503 requirements, especially as it relates to creating A&A Body of Evidence (BOE) documentation.
- Experience meeting security requirements in the Sponsor's environment or similar environments using RMF, information assurance tools, and DoD STIGs.
- Experience working across
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