Senior NSX Engineer for DoD TS/SCI|Cloud Foundation Expert

Select Search Associates LLC; Springfield (VA); On-site; USD 140,000 - 170,000; Full time

Job summary

SSA LLC in Springfield, Virginia, seeks a Senior NSX Engineer to design, implement, operate, and secure VMware NSX in a DoD environment. An active TS/SCI clearance is required; CI/Poly sponsorship may be available within the first year.

The role covers end-to-end NSX lifecycle from architecture through upgrades, with collaboration across network, cybersecurity, and program teams. Candidates should have 5+ years of NSX experience, strong vSphere/VCF skills, and a proven track record in regulated

Qualifications

• 5+ years hands-on NSX engineering in enterprise environments.
• Strong DoD security, compliance, and RMF experience.
• Experience with VMware Cloud Foundation and NSX-T features.

Responsibilities

• Design, deploy, and sustain NSX-T / VCF networking for production and test environments.
• Manage NSX Managers, transport zones, edge clusters, and policies.
• Configure overlays, gateways, routing, and security controls.
• Implement microsegmentation and policy-based security across environments.
• Lead NSX upgrades, patches, changes, and change-control activities.
• Collaborate with cybersecurity, ISSO/ISSM, and program teams.
• Provide Tier 3 escalation support for NSX and vSphere networking.

Skills

NSX architecture

Routing and BGP/ECMP

Network security / microsegmentation

vSphere / vCenter / VCF

DoD compliance & RMF

Automation skills

Documentation and diagrams

Leadership & mentoring

Education

Bachelor's degree in Information Technology, Computer Science, Engineering, Cybersecurity

Tools

NSX Manager

vCenter Server

VCF (VMware Cloud Foundation)

PowerCLI

Ansible

REST APIs

Git

Job description

SSA LLC in Springfield, Virginia, seeks a Senior NSX Engineer to design, implement, operate, and secure VMware NSX in a DoD environment. An active TS/SCI clearance is required; CI/Poly sponsorship may be available within the first year.

The role covers end-to-end NSX lifecycle from architecture through upgrades, with collaboration across network, cybersecurity, and program teams. Candidates should have 5+ years of NSX experience, strong vSphere/VCF skills, and a proven track record in regulated