Mechanical EngineerEl Segundo, California, United States

Mechanical Engineer

Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios.

Radiant is seeking a highly motivated Mechanical Engineer to develop new hardware in a fast-paced startup environment. The candidate will be responsible for owning the high-pressure, high-temperature helium circulator through analysis, manufacturing, testing, and integration for the Kaleidos Demonstration Unit (KDU) test reactor. You will develop critical hardware at the center of the reactor Primary Loop while considering performance, reliability, manufacturability, mass, and cost. The ideal candidate has experience building early concept components through production and is excited about our vision to build Earth's mass-produced nuclear reactors.

Responsibilities & Duties :

• Mechanical Engineering ownership of the high-pressure, high-temperature helium circulator
• Conduct trade studies and develop designs to meet system requirements.
• Perform detailed thermal and mechanical analysis (static strength, durability / fatigue) to determine structural integrity (margins of safety) using both hand calculations and finite element tools.
• Develop and execute hardware testing plans and development campaigns to buy-down technical risk.
• Develop and execute manufacturing / assembly instructions and test plans.
• Create and manage a Bill-Of-Materials (BOM).
• Find and develop suppliers for all components.
• Own subassembly design, manufacturing, and test schedules.
• Own risk analysis and mitigation strategies for hardware.
• Collect requirements, provide expertise and feedback to engineers in other functional areas via clear, constructive communication.

Required Qualifications & Skills :

Desired Qualifications & Skills :

Additional Requirements :

Employee Benefits for Eligible Employees :

We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law. Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant's capacity to serve in compliance with U.S. export controls.