Top Secret* Sr Infrastructure Engineer

Position: *Top Secret* Sr Infrastructure Engineer
**** This position requires an active DoD Clearance (Top Secret, Top Secret/SCI)

*** Because an active clearance is required, U.S. Citizenship is required**
* Description

** Top Secret Clearance + Security+ Certification required day 1*
* What You'll Do

- Lead end-to-end build and lifecycle management of VMware ESXi/VCF stack environments, including vCenter, vSAN, and vSphere clusters

- Architect and integrate NSX-T/NSX-V network virtualization solutions, including micro-segmentation, distributed firewalling, and overlay networking

- Design rack topology and physical infrastructure layouts to support high-availability, mission-critical workloads in data center and tactical environments

- Develop, enforce, and maintain STIG-compliant host profiles across virtualization layers in accordance with DISA requirements

- Collaborate with cybersecurity and compliance teams to support ATO processes, RMF documentation, and continuous monitoring requirements

- Serve as a technical lead and subject matter expert, mentoring junior engineers and providing guidance on architecture decisions

- Evaluate emerging technologies and recommend infrastructure improvements aligned with program roadmaps and customer requirements

- Produce and maintain technical documentation including architecture diagrams, SOPs, and configuration baselines

What You Bring

- 7-10+ years of hands-on experience in enterprise infrastructure engineering, with significant depth in VMware virtualization environments

- Demonstrated expertise with VMware Cloud Foundation (VCF), ESXi, vCenter, vSAN, and NSX

- Strong working knowledge of DISA STIGs and host profile enforcement across virtualized infrastructure

- Experience designing physical rack topologies and data center infrastructure for enterprise or government programs

- Familiarity with RMF, NIST 800-53, and the ATO process in a DoD or IC environment

- Active Top Secret security clearance required; TS/SCI eligibility strongly preferred

- VMware certifications (VCP, VCAP, or VCDX) a plus

- Experience with automation and infrastructure-as-code tools (Ansible, Terraform, PowerCLI) preferred

Preferred Qualifications

- Prior experience supporting classified programs in a DoD, IC, or cleared defense contractor environment

- Familiarity with tactical or deployed infrastructure environments

- Bachelor's degree in Computer Science, Information Technology, or a related field; equivalent experience considered

- DoD 8570/8140 IAT Level II or III certification (Security+, CASP+, CISSP, or equivalent)

Skills

esxi, nsx, rack topology design, stig/host profile enforcement, Systems engineering, Windows, Vmware, Infrastructure

Top Skills Details

esxi,nsx,rack topology design,stig/host profile enforcement,Systems engineering

Additional

Skills & Qualifications

Sr Infra Engineer--- Lead ESXi/VCF stack build, NSX integration, rack topology design, STIG/host profile enforcement

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 $100.00 - $100.00/hr.

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.

Final date to receive applications

This position is anticipated to close on Jul 31, 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…