Network Engineer (MSIC) Huntsville, AL

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 Experience Required Qualifications Bachelors Degree in related field or equivalent experience Minimum of 5 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; Active DoD Top Secret/SCI with full scope poly Preferred Qualifications Enterprise/Data Center networking with a focus on spine‑leaf architectures. 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, the 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. #J-18808-Ljbffr COLSA Corp.