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

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

Type Of Requisition

Regular

Clearance Level Must Currently Possess

Top Secret SCI + Polygraph

Clearance Level Must Be Able To Obtain

Top Secret SCI + Polygraph

Public Trust/Other Required

None

Job Family

IT Infrastructure and Operations

Skills Job Qualifications

Linux, System Improvements, System Performance, Virtual Machines (VM)

Certifications

None

Experience

10 + years of related experience

US Citizenship Required

Yes

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

At GDIT, the mission is our purpose, and our people are at the center of everything we do.

• 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.

The likely salary range for this position is $170,000 - $230,000. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

Scheduled Weekly Hours

40

Travel Required

None

Telecommuting Options

Onsite

Work Location

USA MD Annapolis Junction

Additional Work Locations Total Rewards At GDIT

Our benefits package for all US‑based employees includes a variety of medical plan options, some with Health…