Are you ready to make an impact?
Leidos Office of the Chief Information Officer within the Digital Modernization Sector is seeking a Linux System Administrator to support various classified environments. You will be responsible for maintaining, securing, and supporting complex classified information systems, as well as ensuring compliance with security protocols and regulations.
Location: All work will be performed on site at our King of Prussia, PA office.
Clearance: U.S. Citizen with current Top Secret clearance with ability to be cleared to Special Access Programs (SAP) and eligibility for Special Compartmented Information (SCI). You will be required to maintain clearance for duration of assignment.
What will you do in this role?
This role includes a combination of duties to protect information, and maintain security controls, for an entire system, site, or program to reduce risk.
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Ensure programs maintain favorable standings with government regulations and maintain compliance artifacts such as vulnerability scans, STIGs, SCAP scans, network diagrams, and documentation.
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Install, configure, and maintain VMware, Windows, and RedHat-based servers and systems.
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Work independently to accomplish time-sensitive projects such as infrastructure buildouts, complex software installations, customer and sub-contractor coordination, and end-user outreach.
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Establish, troubleshoot, and maintain network communications with varying sites and partners for both networking and encryptor devices.
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Other duties as assigned.
Basic Qualifications
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Bachelor’s degree with 8-12 years of experience, Master's degree and 6 years' experience, Associate degree and 10 years' experience or equivalent relevant experience and relevant industry-standard certifications may be considered in lieu of degree.
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Must be a U.S. Citizen with a current Active Top Secret security clearance to be considered along with sustained ability to be cleared to Special Access Programs and eligibility for SCI.
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Must have a DoD 8570 IAT level II or higher certification such as CompTIA Security+.
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Extensive experience of operating, troubleshooting, and maintaining RedHat-based operating systems including HPC Clusters.
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Extensive experience operating in a Windows-based domain environment to include workstations, Active Directory, DNS, Exchange, and SharePoint.
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Experience implementing large projects such as new infrastructure, tech refreshes, and/or complex software installations.
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Experience implementing and managing container-based solutions utilizing Docker or Podman.
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Experience maintaining host-based security with Trellix ePolicy Orchestrator.
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Knowledge of change management procedures, roles, and responsibilities.
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Experience with the Risk Management Framework (RMF) and maintaining compliance artifacts such as SCAP scans, STIGs, and Nessus Vulnerability reports.
Preferred Qualifications
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RedHat Certified System Administrator (RHCSA) certification.
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Cisco Certified Network Administrator (CCNA) certification.
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Experience working with Microsoft SQL, Microsoft Exchange, or Microsoft SharePoint technologies.
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Experience configuring Cryptographic Encryptors (TACLANES).
Original Posting:April 22, 2025
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 $104,650.00 - $189,175.00
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.
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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.
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