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 a Staff Data Platform Engineer youll be hands-on building the integrations and pipelines that connect Radiants operational systemsFinance HR Supply Chain Manufacturing and Recruitinginto a unified data platform.

Your first priority will be the ION-Ramp integration: building the pipeline that enables three-way matching (PO Receipt Invoice) between our manufacturing execution system and payments platform. This directly reduces manual work for the Finance team. From there youll expand to connect 9 enterprise systems build dbt transformation models and ensure data quality across the platform.

What Youll Do

• Build integrations:Configure Fivetran connectors build custom pipelines and connect 9 enterprise systems (ION Ramp QuickBooks Rippling Ashby Salesforce SharePoint Smartsheet DocuSign)
• Develop the ION-Ramp pipeline:Build the Snowflake Databricks Ramp pipeline that enables three-way matching for Finance
• Write dbt models:Transform raw data into clean documented tested models for dashboards and analytics
• Ensure data quality:Implement testing monitoring and alerting for data pipelines; catch issues before they reach dashboards
• Support dashboards:Work with the PM and stakeholders to ensure the data models support Finance Operations and HR/Recruiting dashboards
• Document everything:Maintain clear documentation for pipelines models and data definitions

What Were Looking For

Required

• 5 years of data engineering or software engineering experience
• Python and SQL proficiencyyoull write both daily
• Experience with data warehousesDatabricks Snowflake BigQuery or Redshift
• ETL/ELT pipeline developmentFivetran Airbyte Stitch or custom pipeline experience
• API integration experienceREST GraphQL; youre comfortable reading API docs and building integrations with enterprise SaaS tools
• Data modeling skillsdimensional modeling schema design understanding of how data will be used downstream

Preferred

• Background in hardware or hardtech companiesyou understand manufacturing supply chain and physical product development
• Experience with dbt (data build tool)
• Experience with data quality frameworks and testing (Great Expectations dbt tests etc.)
• Comfortable building lightweight internal toolsPython/Flask basic frontendor using AI coding assistants (Cursor Copilot) to extend your capabilities
• Familiarity with MES ERP or supply chain systems (ION SAP NetSuite etc.)

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
• Impact:The pipelines you build directly reduce manual work for Finance and give leadership real-time visibility
• Variety:Youll work across 9 different systemsFinance HR Manufacturing CRM Documentsnever boring
• Modern stack:Databricks Fivetran dbt Airbytebest-in-class tools

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.