Vast.ai
AI & Machine LearningDirect Ashby career site

GPU Systems Engineer - HPC / Parallel Computing

Location
San Francisco, CA · On-site
Job type
Full-time
Level
Senior
Listed
22 days ago

Skills & highlights for this role

  • CUDA
  • C++
  • GPU kernel optimization
  • HPC performance tooling
  • Linux

Also useful

  • HIP
  • SYCL
  • OpenCL
  • distributed training frameworks

Stated benefits & perks

  • Health
  • Dental
  • Vision
  • Life insurance
  • 401k match

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:

  • 15 min - Initial screening (virtual)
  • 45 min - Quick dive into Vast, work history (virtual)
  • 45 min - Systems and architectures (virtual)
  • 1 hour - LLM-assisted coding assessment (virtual)
  • 2 hours - Meet and greet with coding assessment (on-site)

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

About US

Vast.ai 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.

Read the original posting

From Vast.ai's careers page, first listed on Rolev.ai on October 17, 2026. Rolev.ai is not the employer.

How Rolev.ai helps with this application

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Common questions

Where is the GPU Systems Engineer - HPC / Parallel Computing job at Vast.ai located?

This GPU Systems Engineer - HPC / Parallel Computing position at Vast.ai is located in San Francisco, CA (On-site). Always check Vast.ai's application page for specific state eligibility or relocation policies.

What qualifications are required for GPU Systems Engineer - HPC / Parallel Computing at Vast.ai?

For the GPU Systems Engineer - HPC / Parallel Computing role, Vast.ai highlights experience with CUDA, C++, GPU kernel optimization, HPC performance tooling, Linux. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.

How do I apply for the GPU Systems Engineer - HPC / Parallel Computing position at Vast.ai?

This listing links directly to Vast.ai's Ashby application page. You can apply directly on Vast.ai's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Ashby application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.