# Junior Mechanical CAD Engineer / Designer - Company: [Equal1]() - Location: California - Team: Cryo-Systems - Employment type: Full Time - Posted: July 5, 2026 ## Job description We are seeking a Junior Mechanical CAD Engineer / Designer to join Equal1’s 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 counterflow 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. ## **Main Duties and Responsibilities** * 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 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. ## **Experience and Qualifications** **Required** * 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, 5-axis machining, dual-spindle lathe processes, sheet metal fabrication, and/or 3D metal printing. * Understanding of engineering materials, including copper, stainless steel, aluminium alloys, carbon fibre, and glass fibre composites. * Basic understanding of adhesive bonding and brazing processes. * Hands-on assembly or project execution experience. **Preferred** * 2+ years of industry experience, ideally in aerospace, semiconductor equipment, cryogenic systems, scientific instrumentation, or precision mechanical engineering. * Cryogenic experience is a plus. ## Apply [Apply on Equal1]() Canonical job page: