Senior Network Engineer — TS/SCI w/ CI Poly | Onsite

Modern Government Solutions; McLean (VA); On-site; USD 140,000 - 200,000; Full time

Job summary

Modern Government Solutions (MGS) is seeking a Senior Network Engineer to drive performance, stability, and scalability of next‑generation data center networks supporting AI workloads.

You will join a diverse team to design, deploy, and maintain network infrastructure, collaborating with partners to deliver high standards for building and scaling networks, with ongoing training and professional development.

Qualifications

• Must possess an active DoD TS/SCI with CI Polygraph security clearance.
• IAM Level II certification to satisfy DoD 8570 IAT requirements.
• Proven experience designing, configuring, managing, and troubleshooting complex BGP, VXLAN, and L2/L3 data center architectures and topologies.
• Experience with Spine-Leaf data center fabric architecture, design, and implementation, and redundancy protocols such as MCLAG or LACP.
• Ability to build expertise in troubleshooting RoCEv2 for ultra high-speed data transfers.
• Strong communication and collaboration skills; commitment to quality work.
• Willingness to travel up to 20% (domestic/international) for on-site work.

Responsibilities

• Design, configure, troubleshoot, and maintain complex Layer 2 and Layer 3 data center architectures using BGP, ECMP, VXLAN, MCLAG, Spine-Leaf, RoCEv2.
• Collaborate with cross-functional teams to translate business requirements into network solutions.
• Mentor and guide junior team members in their growth.
• Document network designs and configurations for knowledge sharing.

Skills

TS/SCI CI Poly

IAM II

BGP

VXLAN

Spine-Leaf

MCLAG/LACP

RoCEv2

Communication

Travel up to 20%

Tools

Linux NOS

Job description

Modern Government Solutions (MGS) is seeking a Senior Network Engineer to drive performance, stability, and scalability of next‑generation data center networks supporting AI workloads.

You will join a diverse team to design, deploy, and maintain network infrastructure, collaborating with partners to deliver high standards for building and scaling networks, with ongoing training and professional development.