Senior NSX Engineer – On-Site, TS/SCI

General Dynamics Information Technology, Inc.; Springfield (VA); On-site; USD 140,000 - 190,000; Full time

Job summary

General Dynamics Information Technology, Inc. seeks a Senior NSX Engineer to design, deploy, and operate VMware NSX solutions for a DoW environment. You will own the NSX lifecycle from architecture to ongoing security hardening and optimization.

The role requires a TS/SCI clearance with CI polygraph, 5+ years NSX/vSphere experience, and strong governance alignment with RMF and change control processes. Location: customer site in the US.

Qualifications

• Active TS/SCI security clearance with CI polygraph.
• 5+ years of hands-on VMware NSX experience in enterprise-scale environments and 5+ years of VMware vSphere experience.
• Bachelor's degree in IT/CS/Engineering or equivalent experience.
• Advanced NSX-T / VCF networking expertise and diverse security controls.
• Experience in DoW or highly regulated environments with formal change control.

Responsibilities

• Design and sustain VMware NSX-T / VCF networking across production and mission environments.
• Engineer NSX Manager clusters, transport zones, VDS/N-VDS networks, and NSX Edge clusters.
• Implement microsegmentation and policy-based security with least-privilege controls.
• Integrate NSX with vCenter, VCF, PKI, SIEM, and monitoring platforms; lead upgrades and migrations.
• Provide Tier 3 escalation support and documentation; mentor junior engineers.

Skills

NSX engineering

VMware NSX

vSphere

VCF

Security policy design

Troubleshooting

Automation (PowerCLI, Ansible)

Network security

RMF/STIGs knowledge

Education

Bachelor's degree in IT/CS/Engineering

Tools

NSX CLI

Traceflow

tcpdump-uw

pktcap-uw

VMware Aria Operations

vCenter

ESXi

Job description

General Dynamics Information Technology, Inc. seeks a Senior NSX Engineer to design, deploy, and operate VMware NSX solutions for a DoW environment. You will own the NSX lifecycle from architecture to ongoing security hardening and optimization.

The role requires a TS/SCI clearance with CI polygraph, 5+ years NSX/vSphere experience, and strong governance alignment with RMF and change control processes. Location: customer site in the US.