Junior Mechanical CAD Engineer

Junior Mechanical CAD Engineer / Designer Overview

We are seeking a Junior Mechanical CAD Engineer / Designer to join a cryogenic cooler and system integration team. In this role, you will create mechanical components from concept through assembly and system testing.

Components will include CNC‑machined parts, vacuum‑brazed assemblies, cryogenic turbo‑compressor designs, Joule‑Thomson counter flow heat exchangers for He-4 and He-3 cycles, and magnetic field generation and control structures.

The role requires strong 3D CAD capability, practical design‑for‑manufacture knowledge, and a hands‑on approach to building and testing cryostat systems.

• Create 3D CAD models, assemblies, and technical drawings for cryogenic cooler and system integration components.

• Design CNC‑machined parts, vacuum‑brazed assemblies, cryogenic compressor components, heat exchangers, and magnetic field control structures.

• Apply design‑for‑manufacture and design‑for‑assembly principles, including machining processes, sheet metal fabrication, tolerances, and ease of assembly.

• Work with internal teams, suppliers, and machinists to support fabrication, design iteration, and manufacturability reviews.

• Support hands‑on assembly, integration, and testing of cryostat systems.

• Maintain design documentation, drawings, BOMs, and engineering change records.

• Master’s degree in Mechanical Engineering or related discipline.

• Good knowledge of 3D CAD tools; NX or Onshape experience is a plus.

• 3D CAD and CAM knowledge.

• Understanding of metal production processes, including:

  • CNC machining

  • 5‑axis machining

  • Dual‑spindle lathe processes

  • Sheet metal fabrication

  • 3D metal printing

• Understanding of engineering materials, including:

  • Copper

  • Stainless steel

  • Aluminium alloys

  • Carbon fibre

  • Glass fibre composites

• Basic understanding of adhesive bonding and brazing processes.

• Hands‑on assembly or project execution experience.

• 2+ years of industry experience, ideally in:

  • Aerospace

  • Semiconductor equipment

  • Cryogenic systems