Senior Infrastructure Engineer with Security Clearance

• ***This position requires an active DoD Clearance (Top Secret, Top Secret/SCI)**** ***Because an active DoD clearance is required, U.S.

Citizenship is required*** We are seeking qualified professionals with *Top Secret Clearance and Sec+* to support a critical infrastructure deployment project for a large Aerospace & Defense company, one of the world's leading providers of aerospace and defense technologies. This engagement centers on the build-out and deployment of a Secure Development Environment (SDE), with work taking place across two key Collins Aerospace facilities in Richardson, TX and Cedar Rapids, IA.

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) Top Skills' Details

Lead ESXi/VCF stack build, NSX integration, rack topology design, STIG/host profile enforcement **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) This job posting will end: 8/3/26