Cryogenic Systems Engineer

Location: California, United States; on-site

Company

Develops compact cryocooler systems for cryomechanical and quantum system integration.

What you will do

• Develop thermodynamic and gas-flow concepts for cryogenic cooling systems using He-4 and He-3 cycles.
• Simulate cooling cycles, gas flows, thermal performance, and overall system behaviour.
• Define cryogenic component concepts and requirements with CAD and mechanical engineering teams.
• Support the design and integration of Joule-Thomson cryogenic turbocompressor systems operating at 4K and 30K stages.
• Oversee manufacturing, assembly, integration, and testing of cryogenic systems and subsystems.
• Support certification and delivery of cryocooler systems to internal and external customers.

Requirements

• 10+ years of experience in cryogenic system design.
• Experience designing sub-4K cryostats and integrating low-temperature systems.
• Experience with GM, pulse tube, and/or Joule-Thomson cryocoolers.
• Knowledge of the He-4/He-3 phase diagram, cryogenic cooling cycles, CFD and/or thermal modelling.
• Knowledge of CAD systems, including basic 3D CAD for component design.
• Practical understanding of vacuum systems, helium systems, assembly methodologies, temperature control, sensors, and cryogenic instrumentation, plus strong multidisciplinary communication skills.

Nice to have

• Experience with turbo pumps and/or cryogenic turbocompressor design.
• Experience with CTE analysis and cooling cycle design.
• Experience supporting certification of complex technical equipment.

Culture & Benefits

• Full-time, on-site work in California.
• Collaboration across cryomechanical, quantum systems, CAD, mechanical, manufacturing, and multidisciplinary engineering teams.
• Work spanning system design, assembly, testing, certification, and customer delivery.