Senior Windows System Administrator — TS/SCI Clearance

SciTec; Princeton (NJ); On-site; USD 125,000 - 160,000; Full time

Benefits offered by this job

4% Safe Harbor 401(k) match

Company paid health insurance (HSA)

Dental insurance

Vision insurance

Life insurance

Long-term Disability insurance

Hospital Indemnity insurance

Accident & Critical Illness insurance

Short-term Disability insurance

Profit-Sharing Plan

Performance Bonus

Parental Leave

Generous PTO

Flexible Work Hours

Job summary

SciTec in Princeton, NJ seeks a Senior/Principal Windows System Administrator to design, implement, and support Windows and RHEL environments. The role requires an active TS/SCI clearance with polygraph, DoD 8570/8140 certs, and hands-on expertise with Active Directory, security, and system hardening.

You will mentor junior staff and ensure reliable, secure operations. Responsibilities include managing Windows servers, Exchange, SCCM, and Group Policy, plus collaboration with cross-functional

Qualifications

• Bachelor's degree in computer science, engineering, information technology, or related field.
• 5+ years experience as Windows system administrator.
• Active Top Secret/SCI clearance with polygraph.
• DoDD 8140/8570 Certification (Security+ CE or equivalent).
• Experience with system hardening and STIGs.

Responsibilities

• Provide Windows systems administration in heterogeneous environments (Windows and RHEL).
• Install, configure, and manage Windows OS, Exchange, Office, SharePoint, SCCM.
• Implement and maintain Group Policy and security policies.
• Monitor performance and optimize systems.
• Troubleshoot and resolve Windows systems/app issues.
• Document configurations, processes, and procedures.
• Collaborate with other teams.
• Other duties as assigned.

Education

Bachelor's degree in computer science, engineering, information technology, or related field

Tools

VMware vCenter/vSphere/ESXi

SAN/NAS

Cisco networking

Linux administration

Windows imaging/deployment

Job description

SciTec in Princeton, NJ seeks a Senior/Principal Windows System Administrator to design, implement, and support Windows and RHEL environments. The role requires an active TS/SCI clearance with polygraph, DoD 8570/8140 certs, and hands-on expertise with Active Directory, security, and system hardening.

You will mentor junior staff and ensure reliable, secure operations. Responsibilities include managing Windows servers, Exchange, SCCM, and Group Policy, plus collaboration with cross-functional