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Posted 2w ago

Network Engineer (MSIC)

@ COLSA
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Huntsville, Alabama, United States
OnsiteFull Time
Responsibilities:Designing networks, Deploying fabrics, Configuring routing
Requirements Summary:Bachelor's degree or equivalent experience; 1-15 years in enterprise/data center networking; DoD TS/SCI eligibility; CompTIA Security+ CE or CISSP/SSCP; ability to obtain SAP eligibility.
Technical Tools Mentioned:Cisco ACI, InfiniBand, RoCEv2, BGP, OSPF, EVPN-VXLAN, QoS, PFC, VMware NSX, KVM, Hyper-V, NVMe-oF, RDMA, Ansible, Terraform, Python, Netmiko, NAPALM
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Job Description

Job Description

This Network Engineer is responsible for the architecture, deployment, and optimization of high-performance data center networks. This role bridges the gap between traditional enterprise networking and innovative High-Performance Computing (HPC) environments. You will be the primary authority on low-latency fabrics, managing the physical and logical pathways that power large-scale virtualization clusters and AI/ML workloads. The ideal candidate treats the network as a high-speed highway, ensuring zero-packet-loss delivery for data-intensive applications.

Responsibilities

  • Design and maintain Cisco ACI (Application Centric Infrastructure) environments, including Multi-Pod and Multi-Site connectivity.
  • Deploy and tune InfiniBand (Subnet Managers, Leaf/Spine topology) and RoCEv2 (RDMA over Converged Ethernet) to support low-latency requirements.
  • Configure and troubleshoot complex BGP, OSPF, and EVPN-VXLAN deployments across a multi-vendor landscape.
  • Optimize Quality of Service (QoS) and Priority Flow Control (PFC) to prevent congestion in RDMA-heavy environments.
  • Collaborate with systems teams to integrate networking with VMware NSX, KVM, or Hyper-V, ensuring seamless East-West traffic flow.
  • Analyze telemetry data to forecast bandwidth needs for massive data ingest and high-speed storage arrays (NVMe-oF).

At COLSA, people are our most valuable resource and centered at our core value. We invite you to unite your talents with opportunity and be a part of our “Family of Professionals! Learn about our employee-centric culture and benefits here.

Required Qualifications

  • Bachelors Degree in computer science or related field or equivalent experience
  • Minimum of 1 to 15 years of related experience
  • Enterprise/Data Center networking with a focus on spine-leaf architectures
  • Proficiency with high-density switching platforms (e.g., Cisco Nexus, Arista, or NVIDIA).
  • Active/Current CompTIA Security+ CE, ISC2 SSCP, or equivalent baseline certification
  • Ability to obtain Special Access Program (SAP) eligibility and maintain program access as required
  • U.S. Citizenship required; Must possess (or be able to obtain and maintain) a DoD Top Secret clearance with SCI eligibility including successful completion of a Counterintelligence (CI) Polygraph within 180 days of start date

Preferred Qualifications

  • Enterprise/Data Center networking with a focus on spine-leaf architectures.
  • Active DoD Top Secret Clearance with SCI and a Counterintelligence (CI) Polygraph with willingness to meet Special Access Program (SAP) eligibility requirements
  • CCNA Routing & Switching or higher, Nivida Networking, etc.
  • Demonstrated experience with HPC Clusters.
  • Knowledge of NVMe over Fabrics (NVMe-oF) and Fiber Channel over Ethernet (FCoE)
  • Ability to manage network state using Ansible, Terraform, or Python (Netmiko/NAPALM).
  • Direct experience implementing RoCEv2 in a Lossless Ethernet environment using DCB/PFC.
  • Nutanix, KVM, Citrix, or similar.

Applicant selected will be subject to a government security investigation and must meet eligibility requirements for access to classified information. COLSA Corporation is an Equal Opportunity Employer, Minorities/Females/Veterans/Disabled. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, or national origin.

The salary range, if referenced, represents a good faith estimate. COLSA considers various factors when determining base salary offers, but not limited to, location, the role, function and associated responsibilities, a candidate’s particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements.

COLSA offers a comprehensive and customizeable benefits program which includes Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, Accidental Death & Dismemberment, Supplemental Income Protection Programs, 401(k) with company match, Flexible Spending Accounts, Employee Assistance Program, Education & Certification Reimbursement,  Employee Discount Program, Paid Time Off and Holidays.

This position will be posted for a minimum of 3 business days. If a candidate has not been selected at that time, it will continue to be posted until a suitable candidate is selected or the position is closed.