GPU Cloud Network SRE: InfiniBand & RoCE Expert

Triwill Group; United States; Remote; USD 150,000 - 230,000; Full time

Job summary

Bitdeer is seeking a senior network engineer to own and operate the InfiniBand and RoCE fabrics that power our GPU clusters across multiple US data centers. You will convert telemetry into ground truth for congestion predictors and feed the AIOps platform with actionable insights.

You will collaborate with Nvidia/Mellanox support, manage firmware lifecycles, and implement advanced topology optimization to prevent failures and optimize NCCL traffic. A strong automation mindset is essential.

Qualifications

• 5+ years in data center networking with at least 3 years focused on InfiniBand or RoCE fabrics.
• Hands-on experience deploying and operating Nvidia/Mellanox InfiniBand switches at scale.
• Strong understanding of IB subnet management, partitioning, and QoS.
• Experience with RoCEv2 deployment including PFC, ECN, DCQCN configuration.
• Proficiency with UFM or equivalent IB fabric management tools.
• Knowledge of 400G/800G optics, cabling standards, and structured cabling best practices.
• Experience diagnosing IB/RoCE network issues using ibdiagnet, perfquery, ibstat, and similar tools.
• Understanding of NCCL and how GPU communication maps to network topology.
• Instinct for telemetry-driven ops and automation mindset.

Responsibilities

• Operate InfiniBand and RoCE fabrics for GPU clusters at scale.
• Coordinate with Nvidia/Mellanox support for escalations and RMA.
• Feed AIOps substrate with fabric telemetry for fault prediction.
• Tune NCCL performance and topology mapping for efficient GPU communication.
• Manage firmware lifecycle across IB switches and HBAs.
• Diagnose link issues, congestion, and routing anomalies using standard tools.

Skills

Data center networking

InfiniBand/RoCE fabrics

Nvidia/Mellanox switches

IB subnet management

RoCEv2 deployment

UFM fabric management

NCCL/topology mapping

Telemetry-driven ops

Runbook automation

Tools

ibdiagnet

perfquery

ibstat

Job description

Bitdeer is seeking a senior network engineer to own and operate the InfiniBand and RoCE fabrics that power our GPU clusters across multiple US data centers. You will convert telemetry into ground truth for congestion predictors and feed the AIOps platform with actionable insights.

You will collaborate with Nvidia/Mellanox support, manage firmware lifecycles, and implement advanced topology optimization to prevent failures and optimize NCCL traffic. A strong automation mindset is essential.