Linux System Administrator

The Maven Group • Annapolis Junction, MD

5d • Onsite

About The Position

Our client needs a seasoned infrastructure expert to keep a large, mission-critical enclave running smoothly — think servers, virtual machines, managed switches, NAS, VLANs, and VPNs all working in concert. If you enjoy owning the full lifecycle of a complex environment — from day-to-day upkeep to planning its next evolution — this role gives you real latitude to shape how the infrastructure grows.

Requirements

• Bachelor's degree + 11 years of relevant experience (or equivalent combination)
• Active TS/SCI with Polygraph
• Hands-on network administration chops — routing, firewalls, troubleshooting connectivity and throughput issues
• Experience with nginx, SELinux, and FIPS environments
• Comfort with monitoring tools like OpenVAS, Prometheus, and Grafana
• Familiarity with RMF compliance processes, McAfee, and UAM

Nice To Haves

• Docker, MongoDB, Elasticsearch
• Ansible, GitLab, RedHat Satellite
• Software-defined networking exposure

Responsibilities

• Mapping out a migration plan to move customers onto new architecture with zero disruption
• Tuning routing protocols and chasing down a latency issue across multiple hops
• Locking down firewalls and closing out vulnerability findings
• Keeping security documentation current — SSPs, STE/STN packages, patching records, IAVM tracking
• Fielding a question from a developer whose VM just went sideways
• Updating the network diagram nobody else wants to touch, and writing up the monthly outage report
• Scouting new tools or platforms that could raise the bar on the Agency's standard toolset

What This Job Offers

• Job Type: Full-time
• Career Level: Senior