Windows Systems Administrator

Leidos UK

Base: $116,350.00 - $210,325.00; bonus/equity: not...
Hybrid
Active ts/sci with poly clearance
Windows server infrastructure administration
Vmware vcenter and esxi management
This role requires owning and stabilizing a complex hybrid environment of legacy and modern platforms within high-security enclave networks

Job Summary

  • This role requires owning and stabilizing a complex hybrid environment of legacy and modern platforms within high-security enclave networks.
  • Candidates must possess an active TS/SCI with Poly security clearance to operate in restricted, air-gapped environments supporting real-world critical operations.
  • The position offers direct ownership of mission-critical systems where the engineer is expected to drive reliability and performance improvements rather than just maintain status quo.

Matching Summary

This role requires owning and stabilizing a complex hybrid environment of legacy and modern platforms within high-security enclave networks.

Salary

Base: $116,350.00 - $210,325.00; Bonus/Equity: Not specified; Benefits: Not specified

Skills & Requirements

Must-have

  • Active TS/SCI with Poly clearance
  • Windows Server infrastructure administration
  • VMware vCenter and ESXi management
  • AWS cloud infrastructure support
  • Air-gapped network operations
  • 24/7 mission-critical system ownership

Nice-to-have

  • PowerShell or Bash scripting experience
  • Compliance framework knowledge (STIGs, RMF)
  • Proactive problem identification skills
  • Legacy to modernization migration experience
  • Deep-dive root cause analysis capabilities

Key Requirements

  • 12+ years systems engineering experience
  • Active TS/SCI with Poly clearance required
  • Eligibility for restricted air-gapped environments
  • Strong troubleshooting across OS and virtualization layers

Work Rights

Must have Active TS/SCI with Poly clearance

Tailored Resume

Cover Letter