As a Senior Systems Administrator you will play a vital role in maintaining the efficiency and reliability of our IT systems. You will oversee the infrastructure, address technical challenges, and implement solutions to ensure seamless operations. Your expertise will contribute to the optimization and security of our systems, making a significant impact on the organization's technological capabilities.
Responsibilities Include:
- Providing System Administration and SSP/Security support for the program in both Linux and Windows environments.
- Implement, troubleshoot, and maintain IT systems.
- Manage daily IT system configuration and operations.
- Assist users with IT systems access and usage.
- Monitor and resolve issues for client/server/storage/network devices and mobile devices.
- Communicate status updates to agency management and internal customers.
- Optimize system operations and perform capacity planning.
- Configure and manage UNIX and Windows operating systems, ensuring system integrity and performance.
Bachelor’s degree in a relevant technical field with 10+ years of experience, or No degree with 15+ years of related professional experience and IAT Level II certification (e.g., Security+ CE, SSCP)
- Experience providing Sr. Linux (Red Hat/Rocky/CentOS) and LatteArt / SSP, STE/STN support.
- Clearance Required: Must have an active TS/SCI with Polygraph
Desired Qualifications:
- Puppet, Ansible, FreeIPA, RedHat KVM, NetApp support, Support JIRA, Confluence.
- Scripting experience (Bash, Python, Perl, etc.)
- Experience with Proxmox
- Experience with Docker, Kubernetes or other containerization tools.
At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you – apply today!
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At Leidos, we don’t want someone who "fits the mold"—we want someone who melts it down and builds something better. This is a role for the restless, the over-caffeinated, the ones who ask, “what’s next?” before the dust settles on “what’s now.”
If you’re already scheming step 20 while everyone else is still debating step 2… good. You’ll fit right in.
Original Posting:November 14, 2025For 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.
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.
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.
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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.
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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.
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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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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.
