Senior Windows Systems Architect — SME Leader

Leidos; Arlington (TX); On-site; USD 116,000 - 210,000; Full time

Job summary

Leidos is seeking a Senior Windows Systems Administrator to own and lead Windows Server environments within a mixed-OS infra. You will drive architecture, implement hardening, and mentor team members while coordinating with Linux SMEs for cross-platform issues.

The role requires a strong background in Windows Server administration, security frameworks, and DoD-grade clearance eligibility. Expect complex incident resolution and lifecycle planning in a mission-critical setting.

Qualifications

• Bachelor’s degree in a related discipline with 8+ years of prior relevant experience.
• Security+ Certification or other DOD 8570 IAT Level II Certification
• Security Clearance Requirement: Active TS and SCI eligibility
• Strong experience administering Windows Server environments.
• Deep understanding of core Windows services and system management.
• Working knowledge of Linux systems.

Responsibilities

• Serve as the senior lead and SME for all Windows Server environments, driving technical strategy and operational excellence.
• Design, architect, implement, and sustain enterprise Windows infrastructure.
• Own health, performance, and availability of Windows systems; monitor trends and implement improvements.
• Lead complex troubleshooting and root cause analysis to implement permanent fixes.
• Establish and enforce enterprise standards, baselines, and hardening guidelines.
• Provide technical leadership and mentorship to admins and engineers; guide best practices.
• Lead system lifecycle activities including patching, upgrades, migrations, and modernization.
• Provide cross-platform support by performing basic Linux system administration.

Skills

Windows Server

Troubleshooting

Leadership

Education

Bachelor's degree in related field

Master's degree in related field

Tools

Active Directory

PowerShell

Linux

Job description

Leidos is seeking a Senior Windows Systems Administrator to own and lead Windows Server environments within a mixed-OS infra. You will drive architecture, implement hardening, and mentor team members while coordinating with Linux SMEs for cross-platform issues.

The role requires a strong background in Windows Server administration, security frameworks, and DoD-grade clearance eligibility. Expect complex incident resolution and lifecycle planning in a mission-critical setting.