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Senior / Principal Windows System Administrator (Clearance Required)

Scitec Innovations

Princeton, NJ · Posted March 9, 2026

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About the job

SciTec, a wholly owned subsidiary of Firefly Aerospace, is a dynamic non-traditional defense contractor that delivers advanced technologies in support of U.S. National Security and Defense. For the past forty-five plus years, we have supported Department of Defense customers by developing innovative remote sensing algorithms, tools, and techniques to deliver world-class data exploitation capabilities supporting missile defense; intelligence, surveillance, & reconnaissance; space domain awareness; and aircraft survivability missions.

Important Notice: SciTec exclusively works on U.S. government contracts that require U.S. citizenship for all employees. Applicants that do not meet this requirement will not be considered.

SciTec has an immediate opportunity for a talented Senior / Principal Windows System Administrator to join our team in Princeton, NJ. Successful applicants will bring deep experience with Active Directory design, configuration, & maintenance, Windows Server and desktop operating system support, familiarity with hardware procurement, a readiness to work hands-on keyboard to solve challenging problems, a strong collaborative spirit, experience successfully mentoring junior team members, superior problem solving skills, a passion for security and data protection, and a clear focus on supporting customer needs.

Responsibilities

Provide Windows systems administration in multiple heterogeneous Microsoft Windows and Red Hat Enterprise Linux environments

Install, configure, and manage Windows operating systems, applications, and related software, including Microsoft Exchange, Office, SharePoint and SCCM.

Implement and maintain Group Policy settings and other configuration tools.

Implement and maintain security policies and procedures to protect Windows systems and data.

Monitor system performance and identify areas for optimization.

Troubleshoot and resolve technical issues related to Windows systems and applications.

Conduct root cause analysis to identify and resolve underlying problems.

Develop and document technical configurations, processes and procedures

Collaborating with other teams

Other duties as assigned

Requirements

5+ years professional experience performing duties of a Windows system administrator

Strong knowledge of Microsoft Windows desktop and server environments including experience managing and troubleshooting Windows 11 and Active Directory

A bachelor’s degree in computer science, engineering, information technology, a related field, or equivalent experience

An active and transferable Top Secret/SCI clearance with polygraph

Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification)

Experience with system hardening and STIGs

Detail oriented

Good verbal and written communication skills

Candidates meeting the following criteria will be preferred:

Experience using VMWare vCenter, vSphere, and ESXi or other virtual computing methods

Storage Area Network (SAN), Network Attached Storage (NAS) systems

Understanding of basic networking, including subnets, routing, and VLANs; Cisco experience and/or certification

Experience with Linux system administration

Creation and deployment of Windows system images in an enterprise environment

Experience with U.S. government certification & accreditation processes

Benefits

SciTec offers a highly competitive salary and benefits package, including:

4% Safe Harbor 401(k) match

100% company paid HSA Medical insurance, with a choice of 2 buy-up options

80% company paid Dental insurance

100% company paid Vision insurance

100% company paid Life insurance

100% company paid Long-term Disability insurance

100% company paid Hospital Indemnity insurance

Voluntary Accident and Critical Illness insurance

Short-term Disability insurance

Annual Profit-Sharing Plan

Discretionary Performance Bonus

Paid Parental Leave

Generous Paid Time Off, including Holiday, Vacation, and Sick Pay

Flexible Work Hours

The pay range for this position is $125,000 - $160,000 / year. SciTec considers several factors when extending an offer of employment, including but not limited to the role and associated responsibilities, a candidate's work experience, education/training, and key skills. This is not a guarantee of compensation.

SciTec is proud to be an Equal Opportunity employer. VET/Disabled.