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Senior Networking Solution Test Engineer – AI Cluster Debugging
Location
Germany
Posted
92 days ago
Salary
0
Seniority
Senior
Job Description
Senior Networking Solution Test Engineer – AI Cluster Debugging
NVIDIA
• Design and review test and product requirements across the NVLink, Ethernet and InfiniBand / NIC / DPU / Switch portfolio, focusing on large‑scale AI cluster behavior • Build and maintain realistic customer‑like testbeds, including heterogeneous hardware, OS / driver combinations and complex network fabrics • Own end‑to‑end cluster troubleshooting: reproduce customer scenarios, triage across the stack and drive issues to root cause and fix • Read and understand relevant source code to identify defects, validate fixes and improve logging and instrumentation • Collaborate closely with development teams to debug NCCL, RoCE/RDMA and related networking components using logs, code inspection and targeted experiments • Define tests and guide the automation team to implement robust, debuggable suites that produce actionable logs, metrics and traces • Run Regression, Performance, Functional and Scale testing, analyze results and provide clear, data‑driven reports to collaborators • Profile and benchmark deep learning training and inference workloads, correlating model‑level metrics with system and network telemetry to uncover bottlenecks
Job Requirements
- B.A./B.Sc. in Computer Science, Electrical Engineering, or equivalent IT/Network/Systems experience
- 8+ years of hands‑on networking or system‑level testing and debugging on Linux
- Strong Linux networking and debugging skills (for example perf, tcpdump, ethtool, iproute2)
- Proven production‑grade debugging experience: forming hypotheses, running experiments, and driving issues to root cause under pressure
- Expertise in host‑side NIC validation and tuning (offloads, queues, interrupts, firmware/driver interactions)
- Strong knowledge of AI networking libraries (such as NCCL) and protocols (such as RoCE and RDMA), including performance and correctness debugging
- Ability to read and reason about source code (C/C++/Python or similar) and collaborate closely with developers on fixes
- Solid scripting and automation skills with Bash / Python / Ansible for setup, log collection, and experiment orchestration
- Fast learner, familiar with modern AI tools and workflows, able to adapt quickly
- Excellent analytical, problem‑solving and communication skills, with strong ownership and a collaborative approach
Benefits
- Reasonable accommodations to ensure all individuals can participate in the job application or interview process
- Health insurance
- Retirement plans
- Paid time off
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