*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 baselinesWhat 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) preferredPreferred 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)Skillsesxi, nsx, rack topology design, stig/host profile enforcement, Systems engineering, Windows, Vmware, InfrastructureTop Skills Detailsesxi,nsx,rack topology design,stig/host profile enforcement,Systems engineeringAdditional Skills & QualificationsSr Infra Engineer--- Lead ESXi/VCF stack build, NSX integration, rack topology design, STIG/host profile enforcementExperience LevelExpert LevelJob Type & LocationThis is a Contract position based out of Richardson, TX.Pay and BenefitsThe 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 TypeThis is a fully onsite position in Richardson,TX.Application DeadlineThis position is anticipated to close on Jul 31, 2026.About TEKsystemsWe'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 We’re 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. We’re 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. We’re strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We’re 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.Job SummaryJob number: JP-006164178Profession: Other