HPC Performance Engineer

About the role

The HAVOCK Team at CoreWeave is seeking a highly skilled and motivated HPC Performance Engineer to join our dynamic and innovative environment. Reporting into the Manager of Systems Engineering, this role plays a crucial part in the design, development, and optimization of our bare-metal systems from POST through joining a Kubernetes cluster.

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
• Preferred: Familiarity with Golang
• Preferred: Experience working in Cloud environments
• Preferred: Experience as a software engineer writing large-scale applications
• Preferred: Experience in open-source community software development
• Preferred: 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

CoreWeave offers a comprehensive benefits program including medical, dental, and vision insurance, company-paid life insurance, short and long-term disability insurance, a flexible spending account, a health savings account, tuition reimbursement, a mental wellness benefit through Spring Health, family-forming support provided by Carrot, paid parental leave, flexible childcare support with Kinside, a 401(k) with a generous employer match, an employee stock purchase program (ESPP), catered lunch each day in our office and data center locations, a casual work environment, and a work culture focused on innovative disruption. Additionally, we provide a generous base salary range of $165,000 to $242,000, with the starting salary determined based on job-related knowledge, skills, experience, and market location.

Pay

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. We strive for both market alignment and internal equity when determining compensation.

Schedule

CoreWeave offers a flexible schedule to accommodate the diverse needs of our employees.

CoreWeave is an equal opportunity employer

We are committed to fostering an inclusive and supportive workplace. All qualified applicants and candidates will receive consideration for employment without regard to race, color, religion, sex, disability, age, sexual orientation, gender identity, national origin, veteran status, or genetic information. As part of this commitment and consistent with the Americans with Disabilities Act (ADA), CoreWeave will ensure that qualified applicants and candidates with disabilities are provided reasonable accommodations for the hiring process, unless such accommodation would cause an undue hardship.

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. CoreWeave may, for legitimate business reasons, decline to pursue any export licensing process.