About Radiant

Radiant is an El Segundo, CA-based company building the world's only mass-produced, transportable nuclear microreactors. The U.S. grid is under growing strain, with power demand accelerating, driving higher utility costs, rising carbon emissions, and interconnection backlogs. Radiant has a solution, transportable, on-site power. Our first reactor, Kaleidos, is 1 megawatt: small enough to be factory-built, transported by land, sea, or air, and deployed wherever power is needed. 1 MW can power 1000 homes for five years. Ship it back and we refuel for a 20 year operating life. We made energy a product that can be used for critical infrastructure like military bases, data centers, hospitals, and remote sites, as well as the commercial main street businesses that keep America running. Founded in 2020, Radiant is under contract to deliver power to the U.S. Army, Navy and Air Force and has signed pre-order agreements with Equinix, with deployments beginning in 2028.

About the Role

Radiant is building a first-of-its-kind reactor, and delivering it to some of the most demanding customers in the world.

As a Technical Program Manager in Radiant’s Commercial organization, your job is to deliver on our customer contracts. You will own the end-to-end process, serving as the single point of accountability for all contract deliverables, from technical milestones through reactor deployment. Within Radiant, your key points of contact will be the licensing, state engagement, engineering, and manufacturing teams. This role has full responsibility for delivering on Radiant’s most important customer projects. You will operate with wide latitude and direct access to company leadership.

Responsibilities & Duties

Drive contract milestones to completion.

Manage the timely execution of regulatory, engineering, and siting deliverables.

Serve as the primary interface with contracting officers, program offices, installation personnel, and end users.

Architect and maintain program integrated master schedules and cost baselines, ensuring internal teams and subcontractors are aligned to contract obligations.

Manage contract compliance including reporting requirements and milestone billing; support negotiation of contract modifications and change orders.

Independently identify, assess, and drive resolution of programmatic risks and cross-functional dependencies.

Own program financial performance, including budget and resource forecasting.

Stand up and refine the project management processes, tools, and reporting cadence needed to provide clear visibility to company leadership and consistent milestone updates to customer partners.

Carry the customer’s voice back to Radiant, shaping engineering and deployment decisions.

Required Skills and Qualifications

5-7+ years of experience in program management or project management.

Experience managing programs requiring the delivery of complex capital equipment or large-scale industrial systems.

Proven ability to manage programs with significant technical complexity, multiple parallel workstreams, and cross-functional dependencies.

U.S. citizenship required (absolutely no exceptions); ability to obtain and maintain a security clearance.

Desired Skills and Qualifications

Familiarity with electric power infrastructure projects and knowledge of business issues associated with power delivery services.

Experience supporting U.S. government programs.

Experience building and/or deploying infrastructure at DoD installations.

Active DoD security clearance.

Additional Requirements

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

Must work 100% onsite at Radiant’s 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.