Operations Engineer, HPC Networking

We're hiring an Operations Engineer for HPC Networking to keep our InfiniBand and Ethernet fabrics healthy as we scale.

This is a hands-on role. You'll bring up new fabrics alongside DC ops, monitor the ones in production, and chase down the weird stuff: link flaps, congestion, NCCL stalls, firmware bugs that only show up at scale.

You're a fit if you've:

• 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, whatever).
• Nice to have: Ethernet RoCE, Spectrum-X, or large-scale GPU cluster networking.

Who you are:

• Detail-oriented. Cable plant hygiene is a personality trait.
• Calm under fire. A fabric incident during a customer training run doesn't rattle you.
• You read vendor release notes for fun, or at least out of self-defense.
• You'd rather find the root cause than reboot the switch.

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 than the last.