Windows & SCCM Engineer | TS/SCI Clearance

Leidos; United States; On-site; USD 73,000 - 133,000; Full time

Job summary

Leidos is seeking a SCCM/Windows Systems Administrator to support the Defense Intelligence Agency's NDOC IT Operations and Maintenance program. You will design, maintain, and secure Windows platforms across edge and disconnected networks, ensuring patching and lifecycle management in bandwidth-constrained environments.

This role requires strong VMware and SCCM expertise, RMF/Dod compliance, and collaboration with cybersecurity, systems engineering, and mission application teams to sustain

Qualifications

• Demonstrated expertise in Windows server administration, patching, and lifecycle management in enterprise or disconnected/edge environments.
• 5+ years of hands-on VMware experience supporting Windows infrastructure (vSphere 6.7/7.0+)
• Proficiency with PowerShell scripting and Windows automation for patching, reporting, and compliance.
• Experience authoring and maintaining system documentation (runbooks, SOPs, as-builts).
• Understanding of RMF, STIGs, and DoD IA compliance requirements.
• Knowledge of PKI concepts, including certificate enrollment, revocation, CRLs, OCSP, TLS/SSL certificates, and certificate-based authentication.
• DoD 8570.11-IAT Level II certification requirements (Security+ CE, CCNA-Security, GSEC, or SSCP with CE).

Responsibilities

• Engineer, implement, and maintain Windows server environments supporting NMEC operations, including edge and disconnected networks.
• Plan and execute Windows security patch deployment and updates across isolated environments, ensuring DoD security standards compliance.
• Support VMware-based virtualization platforms, including provisioning, upgrades, migrations, and lifecycle management.
• Troubleshoot complex Windows and VMware issues impacting availability, performance, or security.
• Develop, maintain, and update technical documentation (as-built diagrams, runbooks, patch management procedures, compliance records).
• Collaborate with cybersecurity teams to ensure RMF compliance and zero-trust principles across Windows infrastructure.
• Contribute to operational efficiency by leveraging automation (PowerShell scripting, WSUS, SCCM).
• Provide Tier II/III engineering support to O&M operations, including on-call and surge support.
• Manage PKI services, including certificate issuance, renewal, revocation, and troubleshooting for Windows servers and apps.
• Partner with system engineers and program leadership to design resilient architectures for degraded environments.

Skills

Windows server administration

VMware expertise

PowerShell scripting

RMF/DoD compliance

PKI concepts

DoD 8570.11-IAT Level II

Education

Bachelor's degree in Computer Science/IT or related field

Tools

SCCM/Configuration Manager

WSUS

VMware vSphere

Job description

Leidos is seeking a SCCM/Windows Systems Administrator to support the Defense Intelligence Agency's NDOC IT Operations and Maintenance program. You will design, maintain, and secure Windows platforms across edge and disconnected networks, ensuring patching and lifecycle management in bandwidth-constrained environments.

This role requires strong VMware and SCCM expertise, RMF/Dod compliance, and collaboration with cybersecurity, systems engineering, and mission application teams to sustain