Systems Administrator Senior

General Dynamics Information Technology • Annapolis Junction, MD

14d • Onsite

About The Position

Grow your impact. Grow your career. At GDIT, you’re not just maintaining systems — you’re supporting a mission that depends on rock‑solid Linux expertise. Join us as a Systems Administrator Linux SME on a long-standing Prime contract supporting a high‑visibility, mission-critical environment. You’ll work in a fast-paced setting where your decisions matter and your technical leadership is valued. This is the place where Linux professionals build stability, expand their skills, and chart a long-term career path.

Requirements

• Bachelor’s degree in a technical field
• 10+ years of related experience
• SME-level proficiency with Linux operating systems
• Active TS/SCI with polygraph
• US citizenship
• Demonstrated experience with virtual machines, Thin Clients, switches, and networking responsibilities

Nice To Haves

• Strong hands-on experience with AWS

Responsibilities

• Install, configure, manage, and maintain Linux systems, including virtualization platforms and cloud computing environments.
• Determine network specifications, input/output processes, and working parameters for hardware/software compatibility.
• Identify, analyze, and resolve network issues.
• In coordination with the ISSO, implement security measures, conduct audits, and ensure compliance with customer security policies.
• Partner with software developers and IT stakeholders to support system integration, patch workflows, and maintenance activities.
• Develop and maintain scripts and automation tools that reduce manual effort and increase operational efficiency.
• Maintain systems with software updates, patches, and upgrades while validating functionality and compatibility.
• Create and update system documentation including configurations, processes, and procedures.

Benefits

• 401K with company match
• variety of medical plan options
• dental plan options
• vision plan
• full flex work weeks
• variety of paid time off plans, including vacation, sick and personal time, holidays
• paid parental, military, bereavement and jury duty leave
• short and long-term disability benefits
• life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance

What This Job Offers

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