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Materials Engineer, Hydrides

Radiant is an El Segundo-based clean energy startup developing Kaleidos, a 1MW portable nuclear microreactor designed as a zero-emissions alternative to diesel generators. We are seeking a highly motivated Materials Engineer to lead development, testing, and qualification of in-core materials and related manufacturing processes (hydriding, welding, brazing, coatings) to support our reactor development and scale-up efforts.

Skills

  • Hands-on experimental and laboratory testing experience
  • Materials selection and failure analysis
  • Experience with hydriding or solid-state material processing
  • Welding, brazing, soldering, and coating process knowledge
  • Materials characterization and standard test method familiarity
  • Ability to use text-based software tools (Python or similar)
  • Strong written and oral communication skills

Responsibilities

  • Own end-to-end development and qualification of metal hydrides for Kaleidos and related applications
  • Plan and execute materials testing programs to obtain properties that inform design decisions
  • Develop, document, and qualify manufacturing and processing methods (hydriding, welding, brazing, coating, etc.)
  • Select and specify materials for components and provide expert materials guidance to design teams
  • Identify, procure, and operate equipment for materials characterization and testing
  • Assess data quality and validate material property data for the company materials database
  • Define and improve manufacturing processes to achieve target material properties

Education

  • Bachelor’s degree in Materials Science & Engineering or in Mechanical, Aeronautical, Nuclear, or Chemical Engineering with a materials focus (required)
  • Master’s or PhD in Materials Science & Engineering or related fields (preferred)

Benefits

  • Substantial incentive stock plan for full-time salaried employees
  • Medical coverage: company-paid up to base silver for employee + 50% dependent contribution; options up to Platinum
  • Sponsored One Medical memberships for employees and dependents
  • Top-tier vision and dental coverage with partial dependent coverage
  • Voluntary life, accident, hospital, critical illness, commuter and FSA options
  • Free onsite snacks and drinks
  • Flexible PTO policy
To read the complete job description, please click on the ‘Apply’ button

Average salary estimate

$130000 / YEARLY (est.)
min
max
$100000K
$160000K

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FUNDING
DEPARTMENTS
SENIORITY LEVEL REQUIREMENT
TEAM SIZE
No info
HQ LOCATION
No info
SALARY RANGE
$100,000/yr - $160,000/yr
EMPLOYMENT TYPE
Full-time, onsite
DATE POSTED
August 20, 2025
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