Radiant
Senior Stress Engineer
$134K–$185K
El Segundo, CA · On-site · Senior · Full-time · Posted Aug 11, 2026
- Experience
- 4+ years; no stated alternatives.
- Education
- Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, Structural Engineering, or a related field. A Master’s degree or PhD is desired.
- Visa sponsorship
- Position involves access to technology subject to U.S. export controls; any job offer is contingent upon the applicant’s capacity to serve in compliance with U.S. export controls.
About the job
Own structural loads and perform stress, vibration, and dynamic analyses to ensure the Kaleidos reactor and supporting hardware withstand manufacturing, transport, deployment, and operational environments.
What you'll do
- Develop static, dynamic, and transient loads and analyze structural response, vibration, shock, and fatigue.
- Perform finite element and explicit dynamics analyses; support structural testing, verification, and test correlation.
- Collaborate on hardware design and document analyses, requirements, failure investigations, and design improvements.
What they ask for
- Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, Structural Engineering, or a related field.
- 4+ years of professional experience in stress, loads, dynamics, or structural analysis for complex mechanical systems.
- Experience with finite element modeling and analysis of metallic and composite structures; proficiency with industry-standard FEA tools.
- Must work 100% onsite at El Segundo HQ and be willing to work extended hours and weekends as necessary.
Nice to have
- Experience in aerospace, launch, defense, nuclear, or heavy industrial hardware environments.
- Dynamics modeling software experience, such as LD-Dyna or Abaqus explicit.
Pay
$133.5K – $184.8K USD base salary; equity offered, amount not stated.
Tools
ANSYS, Abaqus, Nastran, LD-Dyna
Model-written summary · the original posting is authoritative