HPC Performance Engineer

CoreWeave is seeking an experienced HPC Performance Engineer to join its HAVOCK Team, reporting to the Manager of Systems Engineering. The successful candidate will play a crucial role in designing, developing, and optimizing bare-metal systems from POST through integration with a Kubernetes cluster.

Responsibilities include:

• Developing and maintaining tools for establishing systems performance baselines
• Developing and maintaining performance regression analysis testing automation
• Designing and maintaining performance regression test pipelines for HPC workloads
• Debugging and tuning fabric-level performance for low-latency, high-throughput configurations
• Developing telemetry for performance analysis across distributed clusters of servers
• Triaging and fixing performance issues in Linux
• Collecting data, producing metrics, and visualizations to inform business decisions and drive automation improvements
• Defining Linux and OS requirements, specifications, and system architecture in collaboration with cross-functional teams

Requirements:

• 5+ years of professional experience in Systems/HPC Performance Engineering, Benchmarking, and/or Validation
• Strong experience with MPI workloads and distributed system performance analysis
• Familiarity with RoCE, InfiniBand, and GPUDirect/Data Direct I/O, NUMA, etc. in HPC workloads
• Hands-on experience with public HPC benchmarks (HPCC, HPL, OSU, MLPerf-HPC, STREAM, IO500)
• Extensive, deep experience in Linux internals
• Fluency with a programming language geared toward automation (Python preferred)
• Experience writing robust, testable code
• Experience diagnosing and fixing systems performance issues
• Experience with implementing automation testing
• Ability to effectively prioritize and communicate proposed features and fixes in a remote-employee environment

Preferred qualifications:

• Familiarity with QA/QE best practices
• Familiarity with Golang
• Experience working in Cloud environments
• Experience as a software engineer writing large-scale applications
• Experience in open-source community software development
• Experience with machine learning

CoreWeave offers a competitive salary ranging from $165,000 to $242,000, a discretionary bonus, equity awards, and a comprehensive benefits program, including medical, dental, and vision insurance, company-paid Life Insurance, short and long-term disability insurance, flexible spending accounts, health savings accounts, tuition reimbursement, and employee stock purchase plans.