Fuse
Cryogenic Systems Engineer
$110K–$165K
San Leandro, California · Full-time · Posted Aug 19, 2026
- Experience
- 2+ years of hands-on experience designing, operating, or maintaining cryogenic systems at liquid-helium temperatures (4 K) in a research or industrial facility.
- Education
- B.Sc. or M.Sc. in Physics, Mechanical Engineering, Engineering Physics, or Chemical Engineering with demonstrated cryogenics specialization.
- Visa sponsorship
- To conform to U.S. Government technology export regulations, including ITAR, candidates must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.
About the job
Designs, commissions, operates, and maintains Z-Star’s cryopumping and 4 K target/liner cooling systems, while supporting cryogenic infrastructure, instrumentation, and safety.
What you'll do
- Design, install, commission, and operate vacuum and liquid-helium cryogenic systems, including cryopumps, cryostats, and transfer lines.
- Manage cryogenic supplies and equipment, and develop maintenance, operating, and staff-training procedures.
- Specify and integrate instrumentation and monitoring; establish cryogenic safety procedures and perform inspections and documentation.
What they ask for
- B.Sc. or M.Sc. in Physics, Mechanical Engineering, Engineering Physics, or Chemical Engineering with demonstrated cryogenics specialization.
- Hands-on experience designing, operating, or maintaining 4 K cryogenic systems in a research or industrial facility.
- Proficiency with cryopump systems and strong working knowledge of vacuum science and technology.
- Experience with liquid-helium dewars, cryostats, and VJ transfer lines; familiarity with cryogenic instrumentation.
Nice to have
- Experience with fusion energy, pulsed power, or particle-accelerator cryogenic systems, or MagLIF-type/ICF cryogenic target systems.
- Experience with GM or Pulse Tube cryocoolers, large vacuum chambers, cryogenic safety standards, or thermal modeling tools such as ANSYS or COMSOL.
Pay
$110K – $165K (base salary)
Tools
turbomolecular roughing pumps, cryopumps, Gifford-McMahon, Pulse Tube, Cernox, PT-100, ANSYS, COMSOL
Model-written summary · the original posting is authoritative