Senior System Administrator - TS/SCI Poly; Security Clearance
Listed on 2026-09-26
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IT/Tech
Cybersecurity, Systems Administrator, Network Security
Leidos is seeking a Mid/Sr System Administrator to support a large, distributed network environment in a fast-paced, security-focused setting. The role emphasizes system administration, vulnerability management, and maintaining complex IT infrastructure across multiple domains.
The candidate will install applications, configure servers, and perform operational tasks, with a focus on security, uptime, and collaboration with developers, testers, and engineers.
The following opportunity is for a Senior System Administrator - TS/SCI Poly (Security Clearance) with Leidos.
We are seeking a motivated Senior System Administrator - TS/SCI Poly (Security Clearance) to join Leidos in MD, United States.
Consider building your career as a Senior System Administrator - TS/SCI Poly (Security Clearance) at Leidos.
The Senior System Administrator - TS/SCI Poly (Security Clearance) position in the IT & Technology field is open for applications.
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