Network Engineer - HPC & Low-Latency Data Center

Colsa-5; Huntsville (AL); On-site; USD 120,000 - 160,000; Full time

Job summary

COLSA Corporation is seeking a Network Engineer to support the Missile and Space Intelligence Center in Huntsville, AL. You will design and optimize high-performance data center network architectures, bridging traditional enterprise networking with HPC environments to support low-latency fabrics and large-scale compute workloads.

The role focuses on multi-vendor fabric management (Cisco Nexus, Arista, NVIDIA), InfiniBand/RoCEv2, and tight integration with virtualization and storage networks,

Qualifications

• Bachelor’s degree (or higher) in Network Engineering, Computer Science, or related field or equivalent experience.
• 1–12 years of related experience; level based on experience.
• Experience with enterprise and/or data center networking environments.
• Proficiency with high-density switching platforms (Cisco Nexus, Arista, NVIDIA).
• Active/current CompTIA Security+ CE, ISC2 SSCP, or equivalent baseline certification.
• Ability to obtain SAP eligibility and maintain access.
• U.S. Citizenship; DoD Top Secret clearance with SCI eligibility and CI polygraph within 180 days.

Responsibilities

• Design, deploy, and maintain Cisco ACI environments (Multi-Pod/Multi-Site) for high-density routing/switching.
• Engineer InfiniBand and RoCEv2 fabrics to support ultra-low-latency HPC workloads.
• Configure and troubleshoot BGP, OSPF, EVPN across multi-vendor gear (Cisco Nexus, Arista, NVIDIA).
• Tune QoS, PFC, and ECN for lossless traffic and consistent performance.
• Integrate fabrics with virtualization (VMware NSX, KVM, Nutanix) and NVMe-oF storage networks.
• Forecast bandwidth with telemetry and leverage Python/Ansible for state/config control.
• Maintain DoD security baselines, DISA STIGs, and required security standards.

Skills

Enterprise networking

Data center networking

High-density switching

HPC connectivity

Automation (Ansible, Terraform, Python

Education

Bachelor's degree or higher in a technical field

Tools

Cisco Nexus

Arista

NVIDIA/Mellanox

Cisco ACI

VMware NSX

Ansible

Terraform

Python

NVMe-oF

Job description

COLSA Corporation is seeking a Network Engineer to support the Missile and Space Intelligence Center in Huntsville, AL. You will design and optimize high-performance data center network architectures, bridging traditional enterprise networking with HPC environments to support low-latency fabrics and large-scale compute workloads.

The role focuses on multi-vendor fabric management (Cisco Nexus, Arista, NVIDIA), InfiniBand/RoCEv2, and tight integration with virtualization and storage networks,