Sr Systems Admin

Description Systems Administrator (Top Secret Clearance Required & Sec+ or equivalent IAT Level 2 cert)

Job Summary This role is a Systems Administrator position responsible for the administration, security, compliance, and operational support of enterprise IT infrastructure within highly regulated and mission-critical environments. The ideal candidate possesses deep expertise in Linux and Windows systems administration, endpoint management, server operations, desktop support, and virtualization technologies such as VMware.

Beyond hands-on technical responsibilities, this position serves as a echnical leader, providing guidance, mentorship, and knowledge transfer to junior administrators and support personnel while helping establish operational best practices, technical standards, and system administration procedures. The successful candidate will act as a trusted technical resource across cross-functional teams, supporting complex troubleshooting efforts, driving continuous improvement initiatives, and ensuring the stability, performance, and security of enterprise systems.

The role requires extensive experience managing Microsoft Endpoint Configuration Manager (MECM), administering enterprise server environments, supporting virtualized infrastructure, and maintaining secure computing environments aligned with compliance frameworks such as RMF and DFARS. Candidates should demonstrate a strong security-focused mindset, supported by industry certifications such as Security+, CISSP, or equivalent credentials, and experience operating within cleared government or defense environments.

This position is well suited for a seasoned Systems Administrator who can balance strategic technical leadership with hands-on administration, support critical infrastructure operations, mentor developing team members, and serve as a subject matter expert for systems, security, compliance, and enterprise endpoint management.

Skills Windows, System administrator, Vmware, Active directory, Windows server, Linux, Infrastructure, Server administrator, Systems engineering, Security Top Skills Details Windows,System administrator,Vmware,Active directory,Windows server,Linux,Infrastructure,Server administrator

Additional

Skills & Qualifications Top 3 Required Skills Systems Administration (Linux & Windows) oExpert-level experience administering enterprise server environments, operating systems, infrastructure services, and supporting complex troubleshooting and operational activities.
Endpoint Management, Server Operations & VirtualizationoExtensive hands-on experience with MECM, desktop support, server administration, VMware, and enterprise infrastructure management.
Cybersecurity, Compliance & Cleared Environment SupportoSecurity certifications (Security+, CISSP, etc.), experience with RMF and DFARS compliance requirements, and the ability to operate effectively within security-sensitive government or defense environments.

Experience Level Expert Level Job Type & Location This is a Contract position based out of Richardson, TX.Pay and Benefits The pay range for this position is $50.00 - $70.00/hr individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors.

Eligibility requirements apply to some benefits and may depend on your job
classification and length of employment. Benefits are subject to change and may be
subject to specific elections, plan, or program terms. If eligible, the benefits
available for this temporary role may include the following:

Medical, dental & vision
Critical Illness, Accident, and Hospital
401(k) Retirement Plan Pre-tax and Roth post-tax contributions available
Life Insurance (Voluntary Life & AD&D for the employee and dependents)
Short and long-term disability
Health Spending Account (HSA)
Transportation benefits
Employee Assistance Program
Time Off/Leave (PTO, Vacation or Sick Leave)
Job Type & Location This is a Contract position based out of Richardson, TX.Final date to receive applications

This position is anticipated to close on Oct 26, 2026.Workplace Type This is a fully onsite position in Richardson,TX.About TEKsystems

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