Posted:
1/13/2026, 8:52:36 AM
Location(s):
Washington, District of Columbia, United States ⋅ District of Columbia, United States
Experience Level(s):
Junior ⋅ Mid Level
Field(s):
Business & Strategy ⋅ Sales & Account Management
Workplace Type:
Hybrid
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 failsafe microreactor that can be transported anywhere power is needed and run for up to five years without the need to refuel. 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 utilizes modern software engineering to rapidly achieve safe, factory-built microreactors that leverage existing, well-qualified materials. Founded in 2020, Radiant is on track to test its first reactor next year at the Idaho National Laboratory, with initial customer deliveries beginning in 2028.
Federal Business Development Associate
Radiant’s Federal BD team, under the Chief Revenue Officer, is responsible for kickstarting the world’s mobile nuclear microreactor industry. We are building the path from the first government deployments to a real, repeatable market where reactors are manufactured at scale and deployed for national security, disaster relief, and many other critical uses.
To make this happen, Radiant is seeking a motivated, politically savvy, high-initiative individual. This is not a role where you wait for the next government opportunity to drop. Your job is to help make the work real by building relationships, generating uniform and customer demand and requirements, and helping turn interest into funded programs.
The right person is comfortable in messy org charts and unclear lanes. You can walk into a new office, figure out who owns the problem, and keep pushing until the next person in the chain of command is on board. You write clearly, you follow through, and you care about getting real hardware deployed in the field, not just winning arguments on paper.
Responsibilities & Duties:
Desired Qualifications
Nice-to-Have Qualifications:
Additional Requirements:
Total Compensation and Benefits
Radiant's new hire compensation package includes base salary, substantial equity grants, and comprehensive benefits. Total compensation and level are determined through a holistic evaluation of your interview performance, experience, education, and qualifications.
Benefits and Perks 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.
Website: https://www.radiantnuclear.com/
Headquarter Location: El Segundo, California, United States
Employee Count: 11-50
Year Founded: 2019
IPO Status: Private
Last Funding Type: Series B
Industries: Clean Energy ⋅ Energy ⋅ Energy Efficiency ⋅ Renewable Energy