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Senior Tooling Engineer

Job in El Segundo, Los Angeles County, California, 90245, USA
Listing for: Radiant
Full Time position
Listed on 2026-06-27
Job specializations:
  • Engineering
    Mechanical Engineer, Manufacturing Engineer, Product Engineer, Quality Engineering
  • Manufacturing / Production
    Manufacturing Engineer, Product Engineer, Quality Engineering
Job Description & How to Apply Below

Senior Tooling Engineer

Radiant is seeking a highly motivated Senior Tooling Engineer who will be working closely with design engineers and the manufacturing team to develop and innovate custom tooling to build and assemble our microreactor system. You will be part of the early team that develops production tooling for the factory that will mass produce, fuel, and refuel Kaleidos.

Responsibilities & Duties:

  • Partner with design and manufacturing engineers to develop innovative production tooling for fabricating and assembling complex mechanisms and structures.
  • Design, analyze, and fabricate tooling that enables semi-remote operations for fueling/defueling of the reactor.
  • Identify and develop appropriate suppliers for tooling components, fabrication.

Required

Qualifications & Skills:

  • Bachelor's degree from an accredited institution in mechanical, manufacturing, or other related engineering discipline.
  • 4+ years of experience in mechanical tooling design and fabrication of multi-component assemblies in CAD (NX or similar).
  • Solid understanding of Geometric Dimensioning & Tolerancing (GD&T) with experience applying it to fabrication drawings.

Desired

Qualifications & Skills:

  • Master's degree from an accredited institution in mechanical, manufacturing, or other related engineering discipline.
  • Proficiency with both "hand calc" analytical methods and higher fidelity finite element-based analysis methods.
  • Self-motivated with strong organizational, written, and oral communication skills.
  • Experience with custom machine design; electromechanical systems, motors, actuators, linear rails, bearings, lifting/rigging, etc.
  • Strong problem-solving skills and attention to detail.
  • Demonstrated ability to work collaboratively with design and operations teams.

Additional Requirements:

  • Must be willing to work extended hours and weekends as necessary to achieve company goals.
  • Must work 100% onsite at El Segundo HQ.
Position Requirements
10+ Years work experience
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