Radiant is an El Segundo CA-based startup building the worlds first mass-produced portable nuclear microreactors. The companys 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. Radiants 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.

About the Role

Were building a new team to own Radiants internal data infrastructure executive analytics and AI capabilities. As the Technical Lead (Director) youll set the technical direction for the teamarchitecting the data platform owning the AI strategy and ensuring we make the right build-vs-buy decisions.

This is a player-coach role. Youll lead technical direction and mentor engineers but youll also go hands-on when needed. Youll own the AI vendor evaluation process which is critical given our ITAR/EAR security requirementsstandard AI tools dont work out of the box and we need someone who can navigate the landscape and find compliant solutions.

What Youll Do

• Set technical direction:Define the architecture for our data platform (Databricks Fivetran dbt) and AI tooling; make build-vs-buy decisions
• Own AI strategy:Evaluate and select AI platforms (chatbot enterprise search specialized tools) that meet security requirements; lead RAG evaluation in H2
• Lead technical delivery:Ensure the ION-Ramp integration dashboards and AI tools are built correctly; hands-on when needed
• Mentor engineers:Set the technical bar for hiring; develop the DevOps and Data Platform Engineers on the team
• Interface with SWE:Coordinate with the Software Engineering team on shared Databricks infrastructure; ensure operational and engineering workloads coexist
• Navigate security:Work with IT/Security to ensure all technical decisions meet ITAR/EAR compliance requirements

What Were Looking For

Required

• 10 years of software or data engineering experience including hands-on AI/ML work
• Deep understanding of the AI landscapeyou can evaluate vendor tools understand RAG architectures and advise on build-vs-buy tradeoffs
• Data platform architecture experienceyouve designed and built systems on Databricks Snowflake or similar
• Strong technical leadershipyou can set direction mentor engineers and interface effectively with non-technical stakeholders
• Hands-on abilityyoure a player-coach who can write code when needed not just draw diagrams

Preferred

• Background in hardware aerospace or defenseyou understand manufacturing data supply chain systems and the complexity of physical product development
• Experience shipping AI products or building AI capabilities at a company (not just research)
• Experience with data integration tools (Fivetran Airbyte dbt)
• Experience in regulated environments (SOC 2 FedRAMP ITAR)
• Familiarity with BI/analytics tools (Looker Tableau Power BI Databricks dashboards)

Why Join Radiant

• Mission:Clean energy that can go anywherefew problems matter more
• Team:Work alongside exceptional people from SpaceX Blue Origin and other top engineering organizations
• Compensation:Competitive compensation with equity
• Benefits:Health/dental/vision 401(k) and flexible PTO
• Greenfield:Youll build the data and AI platform from scratchyour architecture decisions
• AI at the frontier:Evaluate and deploy AI in a high-security environment where standard solutions dont work

Additional Information

This position requires the ability to work in the United States and eligibility for access to export-controlled information under ITAR/EAR.

Total Compensation and Benefits
Radiant compensates people for impact and invests in those who continue to raise the bar. Radiants 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 todays advanced reactor builders dont wait for job postings. They join the winning team. If thats you contact us directly for immediate opportunities: .

Benefits and Perks for Eligible Employees:

• Stock: Substantial incentive stock plan for all full-time employees.
• Medical: 100% premium coverage for base Silver level plan for employee 50% premium coverage for dependents. Platinum plans available.
• One Medical: Sponsored memberships for eligible employees and their dependents.
• Vision: 100% premium coverage for top tier plan 50% for dependents.
• Dental: 100% premium coverage for top tier plan (including orthodontia) 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.

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 applicants capacity to serve in compliance with U.S. export controls.