Senior Linux Systems Administrator with 10K sign on bonus

Principal Linux Systems Administrator
Leidos | Intelligence Sector – Cyber & Analytics Business Area (CABA)

Leidos has an exciting opportunity for a Principal Linux Systems Administrator to join our Intelligence Sector within CABA. Our team leads the way in Security Engineering, Computer Network Operations (CNO), SIGINT, Mission Software, and advanced analytics supporting critical national security missions.

At Leidos, we offer competitive benefits including PTO, 11 paid holidays, 401(k) with 6% match (immediate vesting), flexible schedules, stock purchase plans, paid parental leave, and ongoing training and education support.

$10K Sign-On Bonus Available

What you will be doing

As a Linux Systems Administrator, you will support the implementation, maintenance, and optimization of IT systems and infrastructure. You’ll play a key role in ensuring system performance, security compliance, and operational reliability across a variety of environments.

Key Responsibilities

• Ensure systems meet STE/STN security and compliance requirements

• Manage user accounts, access controls, and security tools

• Configure and maintain Linux/UNIX and Windows systems

• Provide IT support and troubleshooting across servers, storage, networks, and mobile devices

• Monitor system performance and resolve issues to maintain network integrity

• Support system optimization, capacity planning, and automation efforts

• Assist users and resolve escalated technical issues

• Install and maintain hardware/software and support dispatch systems

Basic Qualifications

• Experience: 10+ years as a System Administrator supporting programs of similar scope and complexity

• Education: Bachelor’s degree in a technical field (or 5 additional years of experience in lieu of degree)

• Technical Skills:

  • Ansible (playbook development and maintenance)

  • VMware administration

  • AWS (EC2, EFS, S3 fundamentals)

  • Automation and scripting

  • VMDK creation/deployment

  • HP hardware and remote management

  • Cross-team collaboration

• Clearance: Active TS/SCI with Polygraph required

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If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:

March 24, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $92,300.00 - $166,850.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.