Top Secret Sr. Systems Admin

Insight Global is seeking a Senior Systems Administrator to support their client in NGA Core at Wright-Patterson Air Force Base in Dayton, Ohio. The Sr. Systems Admin will keep mission systems reliable and support the customers’ daily operations. The Systems Admin will administer Linux servers and supporting infrastructure, monitor application and database health, resolve operational issues, and help modernize established systems.

The ideal candidate is an adaptable, dependable administrator who takes ownership of system availability and works well with customers and teammates. Flexibility to support an assigned shift schedule and perform regular onsite weekend health checks is essential to this role.

An active TS/SCI security clearance is required.

Criteria for Success:

Reliably cover assigned shifts and complete regularly scheduled onsite weekend health checks, coordinating availability and coverage with the team.

Identify degraded services early, resolve issues independently when possible, and escalate with clear diagnostic information when additional support is needed.

Adapt to changing priorities and unfamiliar technologies while maintaining reliable daily operations.

Keep customers and teammates informed during incidents and provide clear handoffs between shifts.

Document procedures and train teammates so critical knowledge is shared and others can support the environment.

10+ years’ experience in systems administration or closely related infrastructure operations

Strong Linux administration skills, including installation, configuration, services, permissions, patching and log analysis

Willingness and flexibility to work the assigned shift schedule and conduct regular onsite weekend health checks

Experience troubleshooting production issues across servers, storage, networking and application dependencies

Experience supporting at least one relational database platform, such as Oracle, PostgreSQL, or MySQL Experience supporting Department of Defense customers or mission systems that operate around the clock.

Experience with cloud-native containerized application environments (Kubernetes / etc.).

Experience with Elasticsearch sustainment including upgrades and failover.

Experience scripting to automate routine Linux administration.

Relevant technical education, military training, or industry certifications such as CompTIA Security+.