Senior Simulation Engineer

The role

The Simulation Engineer will design tests, collect data, and validate in-house reactor simulation capabilities. This role involves building verification programs and partnering with the materials team to anchor models to physical reality.

What you will do

• Build and maintain a verification program for simulation tools
• Compare simulation results against commercial and proprietary software
• Validate models against data from existing reactors and designed experiments
• Partner with the materials lab to design experiments
• Create digital representations of experiments in the simulation environment
• Run convergence studies to assess results
• Quantify and propagate uncertainty from measurement and model form
• Recommend model additions when simulation is missing physics
• Determine if models need refinement or replacement when they disagree with measurements
• Produce V&V documentation for regulatory standards

Required qualifications

• Bachelor’s degree in mechanical, nuclear, aerospace, or materials engineering, applied mathematics, or a related field
• Hands-on V&V experience through industry work or graduate research
• Working knowledge of materials behavior and testing
• Experience with design of experiments
• Competence in data science and uncertainty quantification
• Software competence in reading and modifying simulation code, scripting, version control and CI
• Experience with MATLAB and/or Python
• Strong communicator

Nice to have

• An advanced degree
• Experience with C++
• Experience with commercial simulation tools such as STAR-CCM+ and Abaqus
• Experience with CAD, particularly NX
• Experience in nuclear or other safety-critical, regulated domains
• Familiarity with NQA-1, ASME V&V standards, or similar quality frameworks

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 + 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

• Any job offer is contingent upon the applicant’s 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.