Transportable Reactor Loads & Dynamics Engineer

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

Benefits offered by this job

Stock plan

Excellent medical plans

One Medical membership

Vision and dental coverage

Parental leave

Educational program (Nuclear)

Daily catered lunch

Flexible PTO

Onsite HQ in El Segundo

Job summary

Radiant, an El Segundo, CA-based company, is seeking a Loads & Dynamics Engineer to own and execute structural loads, vibration, and dynamic analyses for the Kaleidos microreactor hardware. You will ensure structural integrity across manufacturing, transport, and operational environments.

The role requires hands-on engineering, collaboration with structures, mechanical design, thermal, nuclear, and test teams, and the ability to work in fast-paced environments.

Qualifications

• Bachelor's degree in Mechanical Engineering, Aerospace Engineering, Structural Engineering, or related fields.
• 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.
• Ability to communicate analysis results clearly to technical and non-technical stakeholders.

Responsibilities

• Develop static, dynamic, and transient loads for reactor systems and transport configurations.
• Perform structural dynamics analyses (modal, random vibration, shock, sine, fatigue).
• Implement explicit dynamics simulations to model nonlinear reactor response under transient seismic and transport events.
• Define and analyze transport environments (road, rail, air, sea).
• Generate load cases to support structural sizing and verification plans.
• Conduct FEA using ANSYS/Abaqus/Nastran or similar tools.
• Collaborate with design engineers on hardware architecture and joints.
• Support test planning and correlation (shaker tests, modal surveys, verification testing).
• Develop and maintain analysis documentation for reviews and regulatory interfaces.
• Contribute to failure investigations and design improvements.
• Help establish best practices for loads/dynamics in a growing org.

Skills

Structural analysis

Vibration

Dynamic analysis

FEA fundamentals

Cross-functional communication

Education

Bachelor's in Mechanical/Aerospace/Structural Engineering

Tools

ANSYS

Abaqus

Nastran

Job description

Radiant, an El Segundo, CA-based company, is seeking a Loads & Dynamics Engineer to own and execute structural loads, vibration, and dynamic analyses for the Kaleidos microreactor hardware. You will ensure structural integrity across manufacturing, transport, and operational environments.

The role requires hands-on engineering, collaboration with structures, mechanical design, thermal, nuclear, and test teams, and the ability to work in fast-paced environments.