HPC Performance Engineer

About the role

CoreWeave is seeking a highly skilled and motivated HPC Performance Engineer to join our HAVOCK Team, reporting into the Manager of Systems Engineering.

Responsibilities

• Develop and maintain tools for establishing systems performance baselines
• Develop and maintain performance regression analysis testing automation
• Design and maintain performance regression test pipelines for HPC workloads
• Debug and Tune fabric-level performance to ensure low-latency high throughput configurations
• Development of telemetry for performance analysis across distributed clusters of servers
• Triage and fix performance issues in Linux
• Collect data, produce metrics and visualizations that communicate performance information compared to benchmarks; this data should lead to appropriate business decisions and toward greater automation that improves customer experience in relation to performance
• Define Linux and OS requirements, specifications, and system architecture in relation to systems performance, in collaboration with cross-functional teams.

Requirements

5+ years of professional experience in Systems/HPC Performance Engineering, Benchmarking, and/or Validation.

Bachelor’s degree in Computer Engineering, Electrical Engineering, Computer Science, or a related field.

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 use of 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, but others possible).

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.

Excellent documentation skills and attention to detail.

Strong analytical and problem-solving abilities.

Qualifications

Preferred: 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.

Skills

• Python
• Go
• bash/sh
• CPrometheus
• Victoria Metrics
• Grafana
• Linux Kernel (custom build)
• Ubuntu
• Intel/AMD/ARM CPUs, Nvidia GPUs, DPUs, Infiniband and Ethernet NICs
• Docker, kubernetes (k8s), KubeVirt, containerd, kubelet

Benefits

The base salary range for this role is $165,000 to $242,000. The starting salary will be determined based on job-related knowledge, skills, experience, and market location.

In addition to base salary, our total rewards package includes a discretionary bonus, equity awards, and a comprehensive benefits program (all based on eligibility).

• Medical, dental, and vision insurance - 100% paid for by CoreWeave
• Company-paid Life Insurance
• Voluntary supplemental life insurance
• Short and long-term disability insurance
• Flexible Spending Account
• Health Savings Account
• Tuition Reimbursement
• Ability to Participate in Employee Stock Purchase Program (ESPP)
• Mental Wellness Benefits through Spring Health
• Family-Forming support provided by Carrot
• Paid Parental Leave
• Flexible, full-service childcare support with Kinside
• 401(k) with a generous employer match
• Catered lunch each day in our office and data center locations
• A casual work environment
• A work culture focused on innovative disruption

Export Control Compliance

This position requires access to export controlled information. To conform to U.S. Government export regulations applicable to that information, applicant must either be (A) a U.S. person, defined as a (i) U.S. citizen or national, (ii) U.S. lawful permanent resident (green card holder), (iii) refugee under 8 U.S.C. 1157, or (iv) asylee under 8 U.S.C.1158, (B) eligible to access the export controlled information without a required export authorization, or (C) eligible and reasonably likely to obtain the required export authorization from the applicable U.S. government agency.