Hands-on operations engineer maintaining and troubleshooting high-performance InfiniBand and Ethernet networking fabrics in large-scale GPU clusters. Requires production experience with subnet management, full-stack debugging, fabric bring-up, and scripting.
Salary not listed
RemoteDevOps / SRE
About the role
Responsibilities
Monitor health and performance of InfiniBand and Ethernet fabrics: switches, HCAs, transceivers, links.
Investigate and resolve fabric issues: connectivity, congestion, performance regressions.
Support fabric bring-up alongside DC ops and customer-facing teams.
Run maintenance and upgrades on switches and control plane components.
Partner with cluster ops on cross-domain incidents where the line between compute and network is blurry.
Improve the tooling and runbooks so the next incident resolves faster.
Requirements
Operated InfiniBand fabrics in production: subnet manager, routing, partitioning, monitoring.
Debugged the full stack: cables, transceivers, switch firmware, HCAs, drivers, NCCL.
Brought up new fabrics from cable pull through validation.
Scripted your way through repetitive operational work (bash, python, go).
Nice to Have
Ethernet RoCE, Spectrum-X, or large-scale GPU cluster networking.
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