Jobs and Careers
MA

Senior Systems Engineer

ManTech
United Statesfull_timeVerifiedPosted 23 Jun 2026

About the role

General information

Requisition #
R68808
Locations
USA-VA-Chantilly
Posting Date
06/22/2026
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 Senior Systems Engineer to join our team in Chantilly, VA.

You will help troubleshoot and fix a cyber security testing environment while developing its replacement. By leveraging your strong technical background, you will support the improvement and sustainment of mission-driven IT solutions that enable secure enterprise operations. This role provides the opportunity to cross train in additional IT areas (e.g., networking, cyber security, etc.).

Responsibilities include but are not limited to:

  • Troubleshooting and fixing a 1.0 cyber security testing environment, while developing a 2.0 cyber security testing environment
  • Improving performance and increasing security of 1.0 and 2.0 environments
  • Working with other groups on the same program to troubleshoot issues, apply fixes, improve performance, and increase environment security
  • Working with other system engineers, system administrators, and security engineers to develop and maintain robust diagrams for cyber defense capability test environments
  • Evaluating and recommending technology upgrades to support performance improvements and alignment with industry best practices
  • Monitoring and analyzing performance and faults while proposing solutions for system optimization and collaborating with stakeholders to coordinate technical information
  • Helping security engineers resolve issues and document solutions in SNOW

Minimum Qualifications:

  • Bachelor’s degree or 4+ years of additional work experience in lieu of a degree
  • 3+ years of experience in IT, system engineering, and/or system administration
  • IAT Level II certification or higher (Security+, etc.) or the ability to obtain certification within 6 months of hire
  • Experience creating, maintaining, and communicating complex IT documentation
  • Experience developing, administering, and troubleshooting systems that handle government data while ensuring they meet all cyber security requireme

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Company

ManTech

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