Electrical Engineer - 2026 New Graduate

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 early career Electrical Engineer to develop new hardware with an experienced engineering team in a fast-paced startup environment! The electrical team solves technical challenges in batteries, power systems, instrumentation and controls, test development, and electrical system integration. You'll get exposure to interdisciplinary teams across software, nuclear and mechanical and deepening understanding of integrated systems. You'll have the opportunity to make an impact in Radiant's goal to be the first successfully fueled commercial reactor in over 50 years by 2026.

Responsibilities & Duties

• Support the electrical design and ownership of components and subsystems, including:

• Sensor and actuator selection and integration

• Low- and high-power electrical power distribution systems

• Electrical schematics and wiring diagrams

• Control panel and enclosure design

• Cable and wiring harness design

• Assist in the design and setup of test stands for acceptance and qualification testing of components and subsystems

• Participate in system integration, troubleshooting, and validation activities

• Collect and interpret technical requirements and provide clear, constructive feedback to engineers across mechanical, software, and systems disciplines

• Develop, document, and execute test plans and procedures

• Perform basic trade studies and first-order analyses to support design decisions

• Document designs to support Design for Manufacturing (DFM), assembly, and testing

• Support subassembly design, manufacturing coordination, and test schedules

Required Qualifications & Skills

• Bachelor's degree in Electrical Engineering or a closely related field from an accredited institution

• Hands-on experience with electrical design and development through coursework, labs, internships, senior design projects, or engineering clubs

• Familiarity with electrical schematics, basic circuit analysis, and lab equipment

Desired Qualifications & Skills

• Solid foundation in electrical systems design and analysis

• Strong problem-solving skills with a curiosity-driven, growth mindset

• Ability to apply first-principles thinking to engineering challenges

• Self-motivated with strong organizational, written, and verbal communication skills

• Comfortable working in collaborative, cross-functional engineering teams

• Willingness to learn, take ownership of tasks, and grow technical responsibility over time

Additional Requirements

• Must be willing to work extended hours and weekends as necessary to accomplish our mission

• Must work 100% onsite at El Segundo HQ

Benefits and Perks

• Stock: Substantial incentive stock plan for all full-time employees.

• Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.

• 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 are offered as employee contributed benefits.

• 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees.

• Daily catered lunch. Free snacks and drinks.

• Flexible PTO policy. Remote workday allocation.

• Company and team-bonding events, happy hours and in-person camaraderie.

• Beautiful El Segundo headquarters close to the Pacific Ocean.

Total Compensation and Benefits

Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant's new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant.

The best of today's advanced reactor builders don't wait for job postings. They join the winning team. If that's you, contact us directly for immediate opportunities: recruiting@radiantnuclear.com.

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.