Loads & Dynamics Engineer, Portable Nuclear Reactors

Radiant System; El Segundo (CA); On-site; USD 120,000 - 170,000; Full time

Benefits offered by this job

Stock plan

Comprehensive health benefits

One Medical for employees and depend9

Vision coverage

Dental coverage

Parental leave (8 weeks)

Flexible PTO

Remote workday options

Job summary

Radiant in El Segundo, CA is seeking a Loads & Dynamics Engineer to own and execute structural loads, vibration and dynamic analyses for Kaleidos and supporting hardware. You will ensure structural integrity from manufacturing to deployment across diverse environments.

This hands-on role requires collaboration with structures, mechanical design, thermal, nuclear and test teams, thriving in fast-paced settings and ambiguous challenges.

Qualifications

• Bachelor's degree in Mechanical, Aerospace or Structural Engineering.
• 2+ years of experience in loads, dynamics, or structural analysis for complex mechanical systems.
• Strong fundamentals in structural mechanics, dynamics and vibration.
• Experience with finite element modeling and analysis of metallic and composite structures.
• Proficiency with industry-standard FEA tools (ANSYS, Abaqus, Nastran).
• Familiarity with design allowables, safety factors, and margin-of-safety methodologies.

Responsibilities

• Develop and own static, dynamic, and transient loads for reactor systems, support structures, and transport configurations.
• Perform structural dynamics analyses, including modal, random vibration, shock, sine vibration, and fatigue assessments.
• Implement explicit dynamics simulations to model nonlinear reactor response under transient seismic and transportation events.
• Define and analyze transportation and handling environments, including shock and vibration from road, rail, air, or sea transport.
• Generate load cases and environments to support structural sizing, design margins, and verification plans.
• Conduct finite element analyses (FEA) using tools such as ANSYS, Abaqus, or similar tools.
• Collaborate with design engineers to influence hardware architecture, material selection, and joint design.
• Support test planning and correlation, including shaker tests, modal surveys, and structural verification testing.
• Develop and maintain analysis documentation, reports, and requirements for internal reviews and regulatory interfaces.
• Contribute to failure investigations, root cause analyses, and design improvements
• Help establish best practices for loads, dynamics, and structural verification within a growing engineering organization.

Skills

Loads & dynamics

Structural analysis

FEA

ANSYS

Abaqus

Nastran

Education

Bachelor's degree in Mechanical/Aerospace/Structural Engineering

Tools

ANSYS

Abaqus

Nastran

Job description

Radiant in El Segundo, CA is seeking a Loads & Dynamics Engineer to own and execute structural loads, vibration and dynamic analyses for Kaleidos and supporting hardware. You will ensure structural integrity from manufacturing to deployment across diverse environments.

This hands-on role requires collaboration with structures, mechanical design, thermal, nuclear and test teams, thriving in fast-paced settings and ambiguous challenges.