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GPU Systems Engineer – HPC / Parallel Computing

Vast.ai

San Francisco, CAFull-time$160–320K/yrPosted 2mo agoStill listed 2w ago

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At a glance

Compensation
$160–320K/yr
Location
San Francisco, CA
Schedule
Full-time
Work Authorization
Not specified

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Job overview

Vast.ai is hiring a GPU Systems Engineer – HPC / Parallel Computing. Vast.ai seeks a systems engineer with HPC or parallel programming experience to scale AI inference, optimizing GPU performance and designing kernels. The role involves translating HPC techniques, evaluating emerging architectures, and collaborating with technical leadership to improve GPU infrastructure efficiency.

Key focus areas include Design and optimize GPU kernels and tensor libraries, Translate HPC techniques into scalable AI inference solutions, and Evaluate emerging architectures and resource management approaches.

Preferred (not required): CUDA, C++, GPGPU, and Python.

Skills & qualifications

RequiredNice to have

Skills

CUDAC++GPGPUPythonLinuxGPU KernelsTensor LibrariesHIPSYCLOpenCLOpenACCSystems OptimizationHPC Performance ToolingDistributed Training/Inference FrameworksArchitectureCommunication

Benefits

Medical Insurance
Dental Insurance
Vision Insurance
401(k) Match

Full job description

ABOUT US

Vast.ai https://vast.ai’s cloud powers AI projects and businesses all over the world. We are democratizing and decentralizing AI computing—reshaping our future for the benefit of humanity.

We are a growing and highly motivated team dedicated to an ambitious technical plan. Our structure is flat, our ambitions are out‑sized, and leadership is earned by shipping excellence.

We seek engineers with strong intrinsic drive, a true passion for advancing the state of the art, and a mix of architecture, coding, and communication skills.

LOCATION: On-site at our office in San Francisco or Westwood, Los Angeles.

ABOUT THE ROLE

We’re looking for a systems engineer with HPC or parallel programming experience to help scale AI inference. You’ll leverage your knowledge of high-performance systems to optimize GPU performance at the bleeding edge of AI.

  • Full-Time

  • On-site at either our SF or LA offices

TECH STACK

CUDA/C++, GPGPU, Python, Linux

KEY RESPONSIBILITIES

  • Design and optimize GPU kernels and tensor libraries

  • Translate HPC techniques into scalable AI inference solutions

  • Evaluate emerging architectures and resource management approaches

  • Collaborate with technical leadership to improve GPU infrastructure efficiency

IDEAL EXPERIENCE

  • Advanced C++ (C++17/20 preferred)

  • Expertise with at least one parallel framework (CUDA, HIP, SYCL, OpenCL, OpenACC, or similar)

  • Strong background in systems optimization and HPC performance tooling

  • Familiarity with distributed training/inference frameworks (bonus)

INTERVIEW PROCESS

After submitting your application, our technical team reviews your credentials. If selected, you'll proceed through the following stages:

  • Initial screening (virtual, 15 minutes)

  • Quick dive into Vast, systems and architectures (virtual, 30 minutes)

  • LLM-assisted coding assessment (virtual, 1 hour)

  • Meet and greet with coding assessment (on-site, 2 hours)

Our goal is to complete the interview process in two weeks.

BENEFITS

  • Comprehensive health, dental, vision, and life insurance

  • 401(k) with company match

  • Meaningful early-stage equity

  • Onsite meals, snacks, and close collaboration with founders/tech leaders

  • Ambitious, fast-paced startup culture where initiative is rewarded

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