Mechanical Engineer, Electrical Integration

The role

You will support the design and integration of electrical components and subsystems. This includes mechanical design of assemblies, 3D CAD modeling, thermal analysis, and system integration for advanced hardware.

What you will do

• Support mechanical design and ownership of electrical components and subsystems
• Design electrical assemblies such as control panels, enclosures, brackets, mounts, and supports
• Manage cable and wiring harness routing, retention, and serviceability
• Package sensors, actuators, connectors, and electrical hardware
• Perform 3D CAD modeling and 2D drawing creation using Siemens NX
• Perform first-order load calculations for structural design
• Conduct thermal analysis and heat-transfer assessments
• Support selection of materials, fasteners, and finishes
• Participate in system integration, troubleshooting, and validation
• Generate and maintain design documentation for DFM, assembly, and serviceability

Required qualifications

• Bachelor’s degree in Mechanical Engineering or a closely related field from an accredited institution
• 3+ Years of professional hands-on mechanical design experience
• Experience using Siemens NX or similar 3D CAD tools
• Familiarity with mechanical design of electrical assemblies, including enclosures, brackets, and harness routing principles
• Basic understanding of structural mechanics, load paths, and first-order stress calculations
• Knowledge of thermal analysis, heat transfer, and thermal management concepts
• Ability to read and create mechanical drawings, including dimensions and tolerances
• Strong communication skills and ability to collaborate in a multidisciplinary engineering environment

Nice to have

• 5+ years of professional hands-on mechanical design experience
• Mechanical design for high-reliability or harsh environments (nuclear, aerospace, defense, or industrial)
• Experience with FEA or CFD tools for structural and thermal analysis
• Hands-on experience supporting build, integration, and test on the floor

Benefits

• Substantial incentive stock plan for all full-time employees
• Medical: 100% up to base silver level plan for employee + 50% dependents
• One Medical: Sponsored memberships for employees and their dependents
• Vision: 100% top tier plan coverage + 50% for dependents
• Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents
• Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA offered as employee contributed benefits
• 8-weeks of paid parental leave for all parents
• Additional paid pregnancy leave for CA employees
• Nuclear Engineering Certificate Program: 100% covered educational program with Penn State University
• Daily catered lunch
• Free snacks and drinks
• Flexible PTO policy

Before you apply

• Job offer contingent upon capacity to serve in compliance with U.S. export controls

About the company

Radiant is an El Segundo, CA-based company building the world's only mass-produced, transportable nuclear microreactors. Founded in 2020, Radiant is under contract to deliver power to the U.S. Army, Navy and Air Force.