What are the responsibilities and job description for the Senior Network Engineer (InfiniBand & HPC Architecture) position at Axe Compute?
Senior Network Engineer (InfiniBand & HPC Architecture)
Location: Remote / Hybrid (US-Based)
Department: Global Technical Operations & Infrastructure
Reports To: Network Support Manager
Employment Type: Full-time
Target Base Salary: $185,000 – $200,000 / year Equity Package (3-Year Vesting)
Position Overview
Axe Compute is seeking a senior-level InfiniBand & HPC Network Engineer to own, optimize, and troubleshoot the ultra-low-latency interconnect fabrics powering our 20,000 GPU supercomputing infrastructure.
In this role, you will serve as the primary subject matter expert (SME) for high-speed fabric design, Subnet Manager tuning, optical diagnostics, and Tier-3/4 network escalations across multi-site data centers. You will work directly with our Network Support Manager, Storage Leads, and global NOC teams to ensure maximum throughput, non-blocking fabric topology, and zero packet drop across our GPU nodes and high-performance Weka/NVMe-oF storage arrays.
Key Responsibilities
- InfiniBand Fabric Governance & Optimization: Own operational health, topology design, Subnet Manager (OpenSM / UFM) tuning, Adaptive Routing, Congestion Control (CC), and firmware lifecycle for NDR/HDR Mellanox InfiniBand fabrics.
- Tier-3/4 Complex Escalations: Serve as the ultimate technical escalation point for fabric bottlenecks, link flap events, BER (Bit Error Rate) optical degradations, and latency spikes across active GPU training clusters.
- Storage Transport Optimization: Fine-tune RoCEv2 and InfiniBand transport parameters to guarantee sustained multi-terabit throughput between compute nodes, switch fabrics, and distributed storage systems.
- Telemetry & Automation Integration: Partner with Sr. Automation Engineers to stream gNMI, SNMP, and InfiniBand performance counters into Grafana dashboards, PagerDuty, and ServiceNow for automated alerting and root-cause suppression.
- Operational SOPs & Field Runbooks: Author step-by-step diagnostic and hot-swap runbooks for optical cables, transceivers, and switch modules for 24/7 global NOC teams (US & APAC) to execute during shift coverage.
- Vendor & OEM Escalation: Lead technical engagement with NVIDIA/Mellanox TAC, hardware OEMs, optical vendors, and data center smart hands during major incident root-cause analysis (RCA).
Qualifications & Technical Requirements
- Experience: 6 years in enterprise data center networking, HPC interconnects, or ISP backbones, with 3 years dedicated to high-speed InfiniBand fabric operations.
- InfiniBand Mastery: Deep expert command of NVIDIA/Mellanox InfiniBand architecture, Subnet Managers (UFM/OpenSM), ibdiagnet, ibstat, perfquery, and fabric topology validation.
- Enterprise Ethernet & Routing: Strong proficiency with BGP, EVPN-VXLAN, Spine-Leaf architectures, RoCEv2, L2/L3 switching, and optical transceiver diagnostics across Arista, Cisco, or Juniper platforms.
- Linux & Network Tooling: Advanced Linux CLI fluency (tcpdump, ethtool, ipmitool, dmesg, iperf3, lspci) for host-level HCA/NIC and driver debugging.
- Incident Leadership: Proven track record driving rapid MTTR during critical (P1/P2) network events on high-density compute infrastructure.
Preferred Qualifications
- Direct experience supporting multi-cluster GPU/AI training environments (NVIDIA H100/H200/B200 platforms).
- Certifications: NVIDIA Certified Professional/Expert (InfiniBand or Ethernet), Arista ACE, or CCNP/CCIE.
- Network automation experience using Python, Ansible, or Terraform for fabric configuration management.
Compensation & Benefits
- Base Salary Range: $185,000 – $200,000 / year
- Equity Incentive: 10,000 Stock Options (3-Year Vesting Schedule with 1-Year Cliff)
- Work Arrangement: Remote / Hybrid (US-Based)
- Benefits: Full health, dental, and vision insurance; 401(k); generous PTO; home office allowance.
Salary : $185,000 - $200,000