# Cryogenic Systems Engineer at Fuse

- Company: Fuse
- What the company does: Fuse Energy is building the future of energy with cheaper tariffs, better service, and greener goals. Switch to Fuse Energy today. Backed by Accel.
- Company website: http://www.fuseinsight.com
- Type: Startups (AI role)
- Level: Mid level
- Location: San Leandro, California
- Work setup: On-site
- Pay: $110K to $165K base salary per year (USD)
- Posted: 2026-08-19
- Apply by: 2026-10-08
- Apply: https://jobs.ashbyhq.com/fuse/bac78943-8667-4650-a193-0005cd7841f5
- Page: https://www.1752.vc/careers/jobs/fuse-cryogenic-systems-engineer-2/

## About the role

Fuse is constructing Z-Star, a next-generation pulsed-power facility. Z-Star requires two deeply integrated cryogenic systems: a high-vacuum cryopumping system and a 4 K target/liner cryogenic cooling system. As the Cryogenic Systems Engineer, you'll design, commission, operate, and maintain both systems and serve as the facility's resident expert in cryogenic and vacuum science.

## What they're looking for

- B.Sc. or M.Sc. in Physics, Mechanical Engineering, Engineering Physics, or Chemical Engineering with demonstrated cryogenics specialization
- 2+ years of hands-on experience designing, operating, or maintaining cryogenic systems at liquid-helium temperatures (4 K) in a research or industrial facility
- Proficiency with cryopump systems including sizing, installation, and regeneration cycles
- Strong working knowledge of vacuum science and technology: pumping speed, conductance, outgassing, leak detection using He mass spectrometry, residual gas analysis, and pressure measurement
- Experience designing or operating liquid-helium dewars, cryostats, and VJ transfer lines
- Familiarity with cryogenic instrumentation including thermometry, pressure, flow, and liquid-level measurement from 4 K to 300 K

Tags: Engineering / Technical Ops.