# Research Engineer - AI Performance & Kernel Optimization at Zyphra

- Company: Zyphra
- What the company does: The future of intelligence is open.
- Company website: https://www.zyphra.com
- Type: Startups (AI role)
- Level: Mid level
- Location: San Francisco
- Work setup: On-site
- Posted: 2026-03-16
- Apply by: 2026-10-08
- Apply: https://jobs.ashbyhq.com/zyphra/c94162cf-d121-43cc-a17f-afb54ae000e8
- Page: https://www.1752.vc/careers/jobs/zyphra-research-engineer-ai-performance-and-kernel-optimization/

## About the role

As a Research Engineer - AI Performance & Kernel Optimization , you will improve and optimize the performance of our large-scale language model training and inference stacks. You will work closely with our pretraining and inference teams to identify bottlenecks, design and implement highly optimized kernels, and push the limits of throughput, latency, and hardware utilization across a range of accelerator platforms.

## What they're looking for

- Strong engineering aptitude for building reliable, high-performance systems
- Excellent low-level performance intuition and the ability to reason about hardware-software interactions
- Are excited to rapidly learn new systems, tools, and hardware environments
- Excellent communication and collaboration skills, with the ability to work effectively across research and engineering teams
- Enjoy diving deep into the weeds and hunting down the last 10–20% of performance
- Experience writing highly performant GPU kernels at any level of abstraction–PTX, CUDA, HIP, Triton, or other kernel DSLs

Tags: R&D - Engineering