Linux System Administrator

Description

Leidos is seeking an experienced Linux Systems Engineer to provide support to a mission critical enterprise identity and access management system. A successful candidate will develop an understanding of the services offered to external organizations, provide lifecycle systems engineering support to development and operations on the program, and use a combination of technical and functional expertise to recommend solutions to satisfy customer requirements.

This position requires the ability to work a Panama shift schedule, including weekends and holidays

Responsibilities:

* Administer and maintain Linux systems across multiple program environments, supporting both operational and development needs.

* Support cloud initiatives that meet evolving customer requirements.

* Administer program-owned collaboration applications, including Atlassian Jira, Confluence, and RocketChat.

* Manage user accounts and resolve application access issues.

* Monitor system performance, respond quickly to anomalies, and independently make configuration changes to maintain 99.9% system availability.

* Coordinate with enterprise partners during outages and make failover decisions across availability zones or data centers.

* Perform system checkouts and test upgrades and patches in operational environments.

* Partner with Enterprise Services to ensure compliance with security requirements.

* Document incidents, workarounds, root cause analyses, and corrective actions.

* Develop user guides and operational procedures for program tools, including custom Linux scripts and tailored COTS products.

* Coordinate communications with end users, Tier 1 and Tier 3 support, management, mission partners, and government leadership.

Basic Qualifications

* Bachelor's degree in Computer Science or a related discipline, plus 2-4 years of experience as a Systems Administrator or in a similar technical role.

* Active Top Secret clearance with SCI eligibility and willingness to be approved for a CI Poly

* Strong Linux background and familiarity with infrastructure management best practices.

* Experience with Agile collaboration tools such as Jira, Confluence, and RocketChat.

* Strong problem-solving and decision-making skills.

* Excellent oral and written communication skills.

* Proactive self-starter with a positive, collaborative attitude.

* Ability to work a Panama shift schedule, including weekends and holidays.

Preferred Qualifications:

* Experience with AWS or other cloud service providers and cloud-based architectures.

* Familiarity with cross-domain architectures at multiple levels.

* Experience with automated testing and monitoring tools.

* Experience with Engineering Review Boards and Change Management processes.

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:

October 14, 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.