Radiant
Nuclear
MechanicalEngineer,FluidSystems
Neural analysis suggests this role is
optimal for Mid candidates.
“Mechanical Engineer, Fluid Systems at Radiant. Skills: Fluid systems, Thermal analysis, Piping design, Thermodynamics. Own end-to-end engineering of fluid systems. Perform complex thermal and fluids analysis”
What You'll Achieve.
Fueling the first new commercial reactor design in over 50 years by 2026
Industry & Context.
First-principle hand calculations; Finite element tools
Must be willing to work extended hours and weekends, Must work 100% onsite, Compliance with U. S. export controls
What They're Looking For.
Must Have
Bachelor’s degree from an accredited institution in Mechanical, Materials, Aeronautical, Civil or Structural Engineering, Experience with fluid system architecture design, 2+ years of experience in designing, building, and testing fluids systems, Proficient knowledge in fluid dynamics and thermodynamics, Proficient knowledge of heat exchanger design and analysis methods
Nice to Have
Knowledge of thermodynamic power cycles, Prior experience with designing piping system for thermal growth using hand calculations and FEA tools, Experience with process piping design and testing codes, such as ASME B31. 3 and ASME PCC-2, Prior experience with fluid system modeling via Matlab/Python, Experienced in design for manufacturability and ramping up hardware build in a production environment, Experienced in designing and operating test stands, Takes extreme ownership of work and a high degree of responsibility, Excellent communication across multidisciplinary teams, Prior nuclear experience in not required for this role
What You'll Do.
Own end-to-end engineering of fluid systems
Perform complex thermal and fluids analysis
Perform trade studies to optimize system
Develop and execute manufacturing/assembly instructions
Create and manage a Bill-Of-Materials
Find and develop suppliers for components
Own subassembly design
Own risk analysis for subsystems
How You'll Work.
Team & Collaboration
Provide expertise and feedback to engineers in other functional areas; Excellent communication across multidisciplinary teams
Communication Scope
Clear, constructive communication
Process & Methodology
Manage schedules
Full Job Description
ABOUT RADIANT Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be transported anywhere power is needed and run for up to 5 years without refueling. Portable nuclear power with rapid-deploy capability can replace similar-sized diesel generators and provide critical asset support for hospitals, data centers, remote sites, and military bases. Radiant’s unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials. Founded in 2020, Radiant is on track to test its first reactor at the Idaho National Laboratory this summer, with initial customer deliveries beginning in 2028. ABOUT THE ROLE Radiant is seeking a highly motivated Mechanical Engineer, Fluids Systems to own critical Kaleidos fluid systems from preliminary design through build and production. These systems include the primary loop subsystems and power conversion loop, serving to convert heat from the reactor core into electrical power. You will be responsible for the following: trade studies, component selection, thermal hydraulic analysis, piping design, vendor selection, assembly, and testing. You will have an instrumental impact of fueling the first new commercial reactor design in over 50 years by 2026. Responsibilities & Duties: - Own end-to-end engineering of fluid systems and components, including compressors, valves, and heat exchangers. - Perform complex thermal and fluids analysis to drive design decisions, verify system performance, and ensure structural integrity using first-principle hand calculations and finite element tools. - Perform trade studies to optimize system and meet program requirements. - Develop and execute manufacturing/assembly instructions and test plans. - Create and manage a Bill-Of-Materials (BOM). - Fi
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