Sr. Data Center Fabric Engineer

ideal candidate brings deep expertise in VXLAN EVPN architectures Cisco Nexus environments and RoCEv2 (RDMA over Converged Ethernet) along with the ability to design implement and troubleshoot at scale.

This is a hands-on engineering role not a support-only position.

Key Responsibilities

• Design and implement scalable spine-leaf data center fabrics using VXLAN EVPN
• Build and optimize low-latency lossless Ethernet networks for RoCEv2 workloads
• Configure and tune DCB PFC and ECN to support RDMA traffic requirements
• Develop and validate underlay and overlay network designs using BGP
• Perform hands-on configuration and deployment of Cisco Nexus switches (NX-OS)
• Troubleshoot complex network issues including:
  • Overlay/underlay connectivity
  • Congestion and packet loss
  • Latency-sensitive application performance
• Support fabric expansion upgrades and migrations
• Collaborate with cross-functional teams to align network architecture with application needs
• Create and maintain technical documentation diagrams and implementation plans

Must Have (Required Qualifications)

• Proven hands-on experience designing and implementing data center spine-leaf architectures
• Strong expertise with VXLAN EVPN in production environments
• Deep experience with Cisco Nexus (NX-OS) platforms (7K/9K)
• Hands-on experience with RoCEv2 (RDMA over Converged Ethernet v2)
• Strong understanding of lossless Ethernet design including:
  • Data Center Bridging (DCB)
  • Priority Flow Control (PFC)
  • Explicit Congestion Notification (ECN)
• Experience with BGP (underlay/overlay) and advanced routing concepts
• Demonstrated experience in network design and implementation (not just operations/support)
• Strong troubleshooting skills across L2/L3 and fabric overlays Preferred Qualifications
• Experience with Cisco Nexus Dashboard (Nexus Dashboard Fabric Controller / Insights)
• Familiarity with Cisco ACI (nice to have not required)
• Experience supporting AI/ML HPC or storage (low-latency) workloads
• Multi-vendor experience (Arista Juniper)
• Exposure to hybrid cloud networking (AWS Azure)

Automation & Tooling

• Experience with network automation using:
  • Python
  • Ansible
  • REST APIs
• Ability to develop scripts/playbooks for:
  • Configuration deployment
  • Validation and compliance checks
• Familiarity with infrastructure-as-code and CI/CD concepts is a plus