Systems Administrator Senior

General Dynamics Information TechnologyAnnapolis Junction, MD
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
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