Linux System Administrator

Posted Yesterday
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Chantilly, VA, USA
In-Office
52K-94K Annually
Mid level
Information Technology • Software
The Role
Administer and maintain Linux systems supporting a mission-critical identity and access management environment. Responsibilities include cloud support, collaboration application administration, account and access management, performance monitoring, outage response, failover decisions, patch testing, security compliance, incident documentation, operational procedure development, and communication with technical and government stakeholders. The role requires a Panama shift schedule, including weekends and holidays, and an active Top Secret clearance with SCI eligibility.
Summary Generated by Built In

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.

Pay Range:Pay Range $52,000.00 - $94,000.00

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.

Skills Required

  • Bachelor's degree in Computer Science or a related discipline
  • 2-4 years of experience as a Systems Administrator or in a similar technical role
  • Active Top Secret clearance with SCI eligibility
  • Willingness to be approved for a CI Poly
  • Strong Linux background
  • 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-starting, positive, and collaborative attitude
  • Ability to work a Panama shift schedule, including weekends and holidays
  • 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

Leidos Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Leidos and has not been reviewed or approved by Leidos.

  • Healthcare Strength — Healthcare coverage is described as comprehensive, with multiple plan options, low office-visit copays in some plans, and access to mental health and wellness support tools. The availability of HSA/FSA options and employer contributions is positioned as a meaningful part of the total package.
  • Retirement Support — Retirement benefits are framed as a strong component of total rewards, highlighted by a 401(k) match and immediate vesting in the standard package. The Employee Stock Purchase Plan is also presented as an additional long-term wealth-building feature.
  • Wellbeing & Lifestyle Benefits — Wellbeing and lifestyle supports extend beyond core insurance, including wellness programs, fitness-related stipends, and assistance resources. Work flexibility and related perks are also included as part of the broader rewards experience.

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The Company
HQ: Reston, VA
27,104 Employees
Year Founded: 1969

What We Do

We Are Leidos For 50 years we have been tackling some of the biggest problems that face our nation and our world. OUR MISSION Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020. Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®. Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos. Your most important work is ahead.

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