Linux Systems Administrator SME - Active TS/SCI /w poly (Up to a 30k sign on bonus available)

Key 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.
• 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.

Job Qualifications

• 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

Job Description

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.

What You’ll Need To Succeed

• Bring your Linux expertise and passion for innovation to an environment where your skills are both trusted and expanded.

Desired Skills

• Strong hands-on experience with AWS

Why Linux SMEs Choose GDIT

• Career Stability: Support a long-term Prime contract with continued mission funding and organizational investment.
• Growth Opportunities: Work alongside top engineers, gain exposure to cloud environments, automation, new toolsets, and mission technologies.
• Impactful Work: Your Linux expertise directly enables critical national-level operations.
• Technical Leadership: As an SME, your insights shape system architecture, integration, and modernization.
• A Culture of Support: GDIT invests in training, certifications, and professional development to help you build your next career milestone.

About Our Work

We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development. Join our Talent Community to stay up to date on our career opportunities and events at gdit.com/tc.

About GDIT

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans