Radiant
Senior Mechanisms Engineer
$134K–$185K
El Segundo, CA · On-site · Senior · Full-time · Posted Jun 10, 2026
- Experience
- 4+ years designing mechanisms and 4+ years performing stress analysis.
- Education
- Bachelor’s degree from an accredited institution in Mechanical or Aeronautical Engineering.
- Visa sponsorship
- Job offer contingent upon the applicant’s capacity to serve in compliance with U.S. export controls.
About the job
Design, analyze, manufacture, and test critical mechanisms for Radiant’s Kaleidos nuclear microreactor.
What you'll do
- Own critical mechanisms and develop designs through trade studies, analysis, assembly, integration, and testing.
- Create manufacturing and assembly instructions, test plans, bills of materials, supplier relationships, and schedules.
- Manage subsystem FMEA and communicate requirements and technical feedback across teams.
What they ask for
- Bachelor’s degree in Mechanical or Aeronautical Engineering from an accredited institution.
- 4+ years of experience designing mechanisms.
- 4+ years of stress-analysis experience using hand calculations and finite element tools.
Nice to have
- Experience with multi-component CAD assemblies, manufactured and iteratively improved hardware, pneumatic systems, or electromechanical components.
- Experience with interdisciplinary teams, GD&T, analytical and finite-element methods, or text-based software development tools.
Pay
$133.5K – $184.8K (base salary)
Tools
Abaqus, Ansys, FEMAP, NX
Model-written summary · the original posting is authoritative