Reliability Engineer, Supercomputing

About the role

ABOUT THINKING MACHINES

The mission of Thinking Machines is to build AI that extends human will and judgment. We are training frontier models with Inkling, developing Tinker to let people make models their own, and crafting interfaces that broaden human-AI communication. We believe the future worth building is human, and we're hiring people who want to build it.

ABOUT THE ROLE

We're hiring an engineer to ensure the reliability of our GPU supercomputing fleet, owning the seam between hardware, firmware, and operating system. You will track the long tail of hardware issues: We are conducting frontier research in AI and a single bad NIC, HBM or a kernel driver edge case can compromise an experiment. Your job is to diagnose these issues, track their root cause down to the hardware, and resolve them internally or directly with vendors so that our researchers can run at scale and with confidence.

Note: This is an "evergreen role" that we keep open on an on-going basis to express interest. We receive many applications, and there may not always be an immediate role that aligns perfectly with your experience and skills. Still, we encourage you to apply. We continuously review applications and reach out to applicants as new opportunities open. You are welcome to reapply if you get more experience, but please avoid applying more than once every 6 months. You may also find that we put up postings for singular roles for separate, project or team specific needs. In those cases, you're welcome to apply directly in addition to an evergreen role.

WHAT YOU’LL DO

- Investigate, reproduce, and remediate issues across large GPU clusters.

- Own the drivers, kernel surface, and diagnostics that span hardware, firmware, and OS.

- Automate the monitoring of fleet reliability and analyze error rates to validate whether a fix or firmware change measurably reduced failures rather than shifting them around.

- Drive the firmware lifecycle: tracking, qualification, staged rollout, and regression analysis.

- Engage vendors directly — GPUs, server OEMs, NIC vendors, and storage vendors — to get real fixes rather than ticket numbers. Manage RMA flows when hardware needs to come out.

- Monitor and improve GPU hardware health signals and turn them into actionable reliability improvements.

- Write clear postmortems and vendor cases that move issues forward.

SKILLS AND QUALIFICATIONS

Minimum qualifications:

- Bachelor’s degree or equivalent experience in computer science, engineering, or similar.

- Proficiency in at least one backend language (we use Python or Rust).

- Experience operating large‑scale clusters and container orchestration systems (e.g. Kubernetes or Slurm).

- Comfort operating across the stack and owning projects end-to-end.

- Thrive in a highly collaborative environment involving many, different cross-functional partners and subject matter experts.