Cryogenic Systems Engineer

Full-timeOn-site
Californiavia Equal1 CareersPosted Jul 5, 2026
Match with my CV

About this role

We are seeking an experienced Cryogenic Systems Engineer to join Equal1’s cryomechanical and quantum system integration team. In this role, you will oversee the development of compact mK cryocooler systems from concept through design, assembly, testing, certification, and customer delivery.

You will work with absorption and GM coolers, and support the development of Joule-Thomson cryogenic turbocompressor systems with compression cycles at the 4K / 30K temperature stages. The role requires strong cryogenic system design experience, thermodynamic and gas-flow modelling capability, and practical knowledge of vacuum systems, helium handling, CAD, assembly, and temperature control.

Main Duties and Responsibilities

  • Develop thermodynamic and gas-flow concepts for cryogenic cooling systems, including He-4 and He-3 cycles.
  • Simulate and analyse cooling cycles, gas flows, thermal performance, and system behaviour.
  • Define concepts and requirements for cryogenic components and work with CAD/mechanical teams to realise the designs.
  • Support the design and integration of Joule-Thomson cryogenic turbocompressor systems.
  • Oversee manufacturing, assembly, integration, and testing of cryogenic systems and subsystems.
  • Work with vacuum systems, helium handling, temperature control systems, sensors, and cryogenic instrumentation.
  • Support certification and delivery of cryocooler systems to internal and external customers.

Experience and Qualifications

  • Required
  • -
  • 10+ years’ experience in cryogenic system design.
  • Experience with sub-4K cryostat design and low-temperature system integration.
  • Experience with GM, pulse tube, and/or Joule-Thomson cryocoolers.
  • Knowledge of the He-4 / He-3 phase diagram and cryogenic cooling cycles.
  • CFD and/or thermal modelling experience.
  • Knowledge of CAD systems, including basic 3D CAD for component design.
  • Practical understanding of vacuum systems, helium systems, assembly methodologies, and temperature control.
  • Strong communication skills and ability to work across multidisciplinary engineering teams.
  • Preferred
  • Experience with turbo pumps and/or cryogenic turbocompressor design.
  • Experience with CTE analysis and cooling cycle design.
  • Experience supporting certification of complex technical equipment.

Before you apply

  • 1Which parts of your CV prove experience with this kind of role?
  • 2Which recent work examples would make your application stronger for this role?
  • 3What details from the original source listing should you confirm before applying?

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