Senior Infrastructure & Systems Admin — TS/SCI, Onsite MD

Peraton Labs seeks a poly cleared Senior Infrastructure and Systems Administrator to support cleared R&D for a government customer in Maryland. The role emphasizes Linux/Windows admin, virtualization, security hardening, and stateful infrastructure management on-site near College Park, MD. You will work with researchers, engineers, subcontractors, and program leadership to ensure mission systems are reliable, secure, and compliant for advanced R&D efforts.