# Mechanisms Engineer at Radiant

- Company: Radiant
- What the company does: Radiant builds Kaleidos, a portable, factory-built nuclear microreactor that delivers a megawatt of clean power anywhere it is needed. Backed by a16z, Felicis and USV.
- Company website: https://www.radiantnuclear.com
- Type: Startups
- Level: Mid level
- Location: El Segundo, CA
- Work setup: On-site
- Pay: $134K to $185K base salary per year (USD)
- Posted: 2026-10-12
- Apply by: 2026-11-26
- Apply: https://jobs.ashbyhq.com/radiant-industries/75159ba3-fa50-448f-92ea-54c260d44200?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/radiant-mechanisms-engineer/

## About the role

Radiant is seeking a highly motivated Mechanisms Engineer to design and develop critical mechanisms within Kaleidos. You will solve unique challenges creating efficient and reliable mechanisms that control reactivity or actuate critical safety features. You will be responsible for the following: trade studies, material selection, detailed structural analysis, assembly, integration, and testing. You will have an instrumental impact of fueling the first new commercial reactor design in over 50 years by 2026. Found on 1752vc Careers, the job board for startup and VC roles.

## What they're looking for

- Bachelor’s degree from an accredited institution in Mechanical or Aeronautical Engineering
- 3+ years of experience designing mechanisms
- 3+ years of experience performing stress analysis using both hand calculations and finite element tools (Abaqus, Ansys, FEMAP, or similar)
- Experience with design of multi-component assemblies in CAD (NX or similar)
- Experience designing hardware that was manufactured, deployed, and iteratively improved
- Experience designing pneumatic systems

Tags: Engineering

Source: 1752vc Careers, https://www.1752.vc/careers/jobs/radiant-mechanisms-engineer/