Principal Cyber Systems Engineer
MantechVirginia, United States
Posted May 19, 2026
Full Time
About the Company
Mantech is a technology and services firm that partners with U.S. federal agencies, the military, and allied organizations to deliver secure, mission‑critical solutions. Leveraging more than 57 years of experience, the company specializes in cyber defense, intelligence and counter‑intelligence, systems engineering, enterprise IT, software development, data analytics, and C4ISR/C5ISR capabilities. With a workforce of nearly 9,800 employees—40 % veterans and many from intelligence and homeland‑security backgrounds—Mantech brings firsthand operational insight to every project. Its reputation for reliability, adaptability, and a deep commitment to public service makes it a trusted partner for complex, high‑stakes challenges across defense, healthcare, and environmental sectors.
Job Description
Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies, as a Principal Cyber Systems Engineer.
Requirements
- Providing engineering support and system administration for specialized cybersecurity applications and systems
- Serving as a subject matter expert in the creation, editing, and management of signatures, rules, filters, and custom content for cybersecurity systems
- Applying Systems Engineering best practices specific to Cyber Operations and evaluating enterprise-level cyber requirements against approved architectures and roadmaps
- Administering cybersecurity test beds, conducting tests and evaluations of new tools, access controls, configurations, and signatures/rules
- Providing Tier 2 maintenance support for deployed cybersecurity technologies
- Collaborating with cross-functional engineering teams to design and implement secure systems
Benefits
- Generous Paid Time Off
- 401k Matching
- Retirement Plan
- Visa Sponsorship
- Four Day Work Week
- Generous Parental Leave
- Tuition Reimbursement
- Relocation Assistance