Senior 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.

Senior Mechanical Engineer

Radiant is seeking a highly motivated Senior 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.

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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.