Network Engineer MSIC

Responsibilities

• Design and maintain Cisco ACI (Application Centric Infrastructure) environments, including Multi‑Pod and Multi‑Site connectivity.
• Deploy and tune Infini Band (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).

• 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.
• Applicant selected will be subject to a government security investigation and must meet eligibility requirements for access to classified information.

• 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, NVIDIA 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.

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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.