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

General Dynamics - IT; Annapolis (MD); On-site; USD 120,000 - 155,000; Full time

Job summary

General Dynamics - IT is seeking a Systems Administrator Linux SME to support a mission-critical, high-visibility environment in Annapolis, MD. You will lead system administration, virtualization, and security efforts.

The role requires SME-level Linux expertise, TS/SCI with polygraph, US citizenship, and strong collaboration with software developers and IT stakeholders to patch, automate, and document.

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.
• Experience with virtual machines, Thin Clients, switches and networking responsibilities.

Responsibilities

• System Administration: Install, configure, manage, and maintain Linux systems, including virtualization platforms and cloud environments.
• Networking: Determine network specifications, input/output processes, and working parameters for hardware/software compatibility; resolve network issues.
• System Security: Implement security measures, conduct audits, and ensure compliance with customer security policies.
• Collaboration: Partner with software developers and IT stakeholders to support system integration, patch workflows, and maintenance activities.
• Automation: Develop and maintain scripts and automation tools to reduce manual effort and increase efficiency.
• Patch Management: Maintain systems with software updates, patches, and upgrades while validating functionality.
• Documentation: Create and update system documentation including configurations, processes, and procedures.

Skills

Linux SME

Virtual machines

Thin Clients

Networking

AWS

Education

Bachelor’s degree in a technical field

Job description

SYSTEMS ADMINISTRATOR SME – LINUX

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.

KEY RESPONSIBILITIES

System Administration Install, configure, manage, and maintain Linux systems, including virtualization platforms and cloud computing environments.

Networking Determine network specifications, input/output processes, and working parameters for hardware/software compatibility. Identify, analyze, and resolve network issues.

System Security In coordination with the ISSO, implement security measures, conduct audits, and ensure compliance with customer security policies.

Collaboration Partner with software developers and IT stakeholders to support system integration, patch workflows, and maintenance activities.

Automation Develop and maintain scripts and automation tools that reduce manual effort and increase operational efficiency.

Patch Management Maintain systems with software updates, patches, and upgrades while validating functionality and compatibility.

Documentation Create and update system documentation including configurations, processes, and procedures.

WHAT YOU’LL NEED TO SUCCEED

• 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

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.

GDIT IS YOUR PLACE

• Growth: AI-powered career tool that identifies career steps and learning opportunities
• Support: An internal mobility team focused on helping you achieve your career goals
• Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off
• Flexibility: Full-flex work week to own your priorities at work and at home
• Community: Award-winning culture of innovation and a military-friendly workplace

OWN YOUR OPPORTUNITY

Explore an enterprise IT career at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your desire to drive operations forward.

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