Sr Systems Administrator

Description

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

Job Summary

This role is a Senior -level 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 Senior technical 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

Senior Systems Administration (Linux & Windows)

o Expert-level experience administering enterprise server environments, operating systems, infrastructure services, and supporting complex troubleshooting and operational activities.

Endpoint Management, Server Operations & Virtualization

o Extensive hands-on experience with MECM, desktop support, server administration, VMware, and enterprise infrastructure management.

Cybersecurity, Compliance & Cleared Environment Support

o Security certifications (Security+, CISSP, etc.), experience with RMF and DFARS compliance requirements, and the ability to operate effectively within security-sensitive government or defense environments.

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)

Workplace Type

This is a fully onsite position in Richardson,TX.

Application Deadline

This position is anticipated to close on Oct 20, 2026.

About TEKsystems

We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

About TEKsystems and TEKsystems Global Services

Were a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. Were a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. Were strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. Were building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.