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Principal Cyber Security Engineer

Company: MANTECH

Location: chantilly, London

Posted: June 14, 2026

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Position Details

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....