Senior Infrastructure and Systems Administrator

Welcome page Returning candidate? Log back in! Senior Infrastructure and Systems Administrator Job Locations US-MD-College Park Requisition ID 2026-166562 Position Category Cyber Security Clearance Top Secret/SCI w/Poly Responsibilities Peraton Labs is seeking a poly cleared Senior Infrastructure and Systems Administrator to support cleared research and development efforts for a government customer in Maryland. This role will support the implementation, maintenance, security, and operational readiness of complex classified and unclassified research infrastructure environments.This position is ideal candidate for this role is a hands-on infrastructure professional with strong Linux and Windows administration experience, networking fundamentals, virtualization knowledge, security configuration experience, and the ability to support dynamic research programs. This position will work closely with the Maryland-based customer, researchers, engineers, subcontractors, and program leadership to ensure mission systems are reliable, secure, compliant, and ready to support advanced R&D efforts. This position requires full-time on-site work at a customer site near College Park, MD. Key responsibilities may includeImplement, maintain, and enhance classified and unclassified research infrastructure systemsPerform Linux and Windows server administration, including installation, configuration, patching, troubleshooting, hardening, and lifecycle supportInstall, configure, and troubleshoot IT, networking, compute, storage, and lab hardware/softwareBuild and maintain OS images for Linux and Windows environmentsConfigure new systems using security best practices, approved baselines, and program-specific requirementsSupport virtualization and infrastructure platforms such as VMware, Proxmox, Hyper-V, KVM, OpenStack, or similar technologiesSupport network configuration and troubleshooting, including TCP/IP, VLANs, routing, switching, DNS, DHCP, firewalls, remote access, and port activation/patchingIntegrate GOTS, COTS, and open-source tools into secure research environmentsMaintain system security posture through regular patching, anti-virus/endpoint protection updates, vulnerability remediation, and configuration managementSupport physical infrastructure activities, including system setup, cabling, rack/stack, power, labeling, and network patching in classified and unclassified spacesDevelop and maintain backup, recovery, log archive, and data retention procedures aligned to program security plansExercise system and data recovery procedures on a regular basisCreate scripts, automation, or tool recommendations to support audit readiness and operational efficiencySupport audit tasks, evidence collection, account reviews, log review, media control, and compliance activities in coordination with Security teamsDevelop and execute approved procedures for sanitizing, releasing, or disposing of system components and mediaMaintain technical documentation, system diagrams, configuration records, SOPs, and operational runbooksInterface with the government customer, program teams, security personnel, and subcontractors to coordinate infrastructure work and resolve issues *This position may be eligible for an increased sign-on bonus. Eligibility, bonus amount, and applicable terms and conditions will be discussed during the recruiting process* #MDFSP#PLABS26 Qualifications Required QualificationsMinimum of 6+ years of experience with a Bachelor’s degree, 4+ years of experience with a Master’s degree, or a PhD in Computer Science, Computer Engineering, Information Systems, Cybersecurity, or a related technical field. In lieu of a Bachelors, an additional 4 years of experience is required for a total of 10+ years relevant experience.Strong experience with Linux and Windows server system administrationExperience administering, securing, and troubleshooting enterprise or research infrastructure environmentsExperience with network fundamentals,...