Leidos is seeking an experienced Systems Administrator to join our team in supporting mission-critical IT infrastructure. This role is ideal for a professional with solid systems administration expertise, particularly in pipeline automation and/or VMware environments across Windows and/or Linux platforms. You will work in a collaborative, high-security environment, ensuring the reliability, security, and efficiency of systems that support national security objectives. 

This position involves hands-on administration, automation of deployment pipelines, virtualization management, and troubleshooting in a dynamic setting. The ideal candidate will bring mid-level experience to optimize system performance, implement automation solutions, and maintain compliance with stringent security protocols. 

Primary Responsibilities:

• Administer and maintain Windows and/or Linux servers, including installation, configuration, patching, and performance tuning. 
• Lead the design, implement, and manage pipeline automation for CI/CD processes using tools like Jenkins, Ansible, or similar to streamline deployments and operations. 
• Manage VMware environments (e.g., vSphere, ESXi), including virtual machine provisioning, resource allocation, clustering, and disaster recovery. 
• Monitor system health, troubleshoot issues, and perform root cause analysis for hardware, software, and network-related problems. 
• Ensure compliance with security standards, including vulnerability scanning, remediation, and audit support in a classified environment. 
• Collaborate with cross-functional teams (e.g., developers, security engineers) to integrate systems and automate workflows. 
• Participate in on-call rotations, system upgrades, and capacity planning to support 24/7 operations. 
• Document procedures, configurations, and best practices for knowledge sharing and continuity. 
• Stay current with emerging technologies in systems administration, automation, and virtualization. 

Basic Qualifications:

• Bachelor's degree with 8+ years of experience or a Masters degree with 6+ years of experience. Additional experience may be considered in lieu of a degree.
• US Citizen with an active TS/SCI with Poly security clearance. 
• CompTIA Security+ certification 
• Proven experience in systems administration for Windows and/or Linux environments. 
• Hands-on experience with pipeline automation tools (e.g., Jenkins, GitLab CI, Ansible) and/or VMware technologies (e.g., vSphere, vCenter). 
• Familiarity with scripting languages such as PowerShell, Bash, or Python for automation tasks. 
• Understanding of networking concepts, storage solutions, and cloud integration (e.g., AWS, Azure). 
• Strong problem-solving skills, with the ability to handle complex issues in high-stakes environments. 
• Excellent communication skills for team collaboration and documentation. 

Preferred Qualifications:

• Certifications such as RHCE, MCSE, VCP (VMware Certified Professional). 
• Experience in DevOps practices, containerization (e.g., Docker, Kubernetes), or infrastructure as code (e.g., Terraform). 
• Knowledge of federal security standards (e.g., NIST, FISMA) and experience in classified environments. 
• Exposure to hybrid/multi-cloud setups or advanced virtualization features like NSX. 

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:

January 12, 2026

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.