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Full time
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MA

Principal Cyber Security Engineer

MANTECHChantilly, VA🇺🇸United StatesPosted Sep 4, 2026

Why This Role Stands Out

This Principal Cyber Security Engineer role offers a fantastic opportunity to lead critical security initiatives within a dynamic, hybrid environment, leveraging cutting-edge technology to protect national security missions. If you possess extensive experience with accreditation processes and a passion for enhancing complex systems, you'll thrive in this collaborative team and contribute significantly to the company's mission. Don't miss out on this chance to advance your career and make a real impact.

Quick Overview

Seniority
Leader
Employment type
Full Time
Work mode
Hybrid
Location
Chantilly, VA, United States
Posted
1 week ago

Job Description

Principal Cyber Security Engineer | Chantilly, VA, United States | Hybrid

This employer is seeking a highly motivated Principal Cyber Security Engineer to join a dynamic team. The role is critical in supporting system accreditation efforts and enhancing the overall security posture of complex systems within a fast-paced environment. This is an excellent opportunity for an experienced professional looking to make a significant impact on critical infrastructure.

The Role

  • Design, implement, and maintain complex systems and infrastructure supporting key business objectives.
  • Deploy solutions to proactively mitigate cyber threats while collaborating with cross-functional teams.
  • Troubleshoot and resolve complex system issues, providing recommendations for improved security.
  • Plan and execute system upgrades, patches, and migrations, and develop disaster recovery plans.
  • Develop system monitoring and alerting strategies and mentor junior team members.
  • Assess security control performance and evaluate potential system security risks to implement corrective actions.

What You'll Need

  • Bachelor's degree or 4+ years of additional experience in lieu of degree.
  • 7+ years of cyber security experience.
  • Demonstrated experience with accreditation processes and ICD 503 requirements.
  • Experience meeting security compliance using RMF, information assurance tools, or DoD STIGs.
  • Proven ability to work across a large team to drive security initiatives within complex systems.
  • Experience with network inventory and documentation, including security compliance, patching, and authentication.
  • Current DoD 8570 certification meeting IAT Level II requirements.

What's On Offer

  • Opportunity to work with cutting-edge technology and support critical national security missions.
  • Collaborative and supportive team environment.
  • Mentorship and professional development opportunities.
  • Engaging work on complex, intertwined systems and data flows.

Apply via Haystack today!

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