About Radiant

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 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. Radiants 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

Were building a new team to own Radiants internal data infrastructure executive analytics and AI capabilities. As a Senior Data Platform Engineer youll be hands-on building the integrations and pipelines that connect Radiants operational systems Finance HR Supply Chain Manufacturing and Recruiting into 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.

Responsibilities & Duties:

• 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 stakeholders to ensure the data models support Finance Operations and HR/Recruiting dashboards.

• Document everything:Maintain clear documentation for pipelines models and data definitions

Required Qualifications & Skills:

• Bachelors degree in computer science physics or a similar field.

• 4 years of data engineering or software engineering experience.

• Strong experience in Python C/C Java or a similar language.

• Experience with data warehouses Databricks Snowflake BigQuery or Redshift

• ETL/ELT pipeline development Fivetran Airbyte Stitch or custom pipeline experience

• API integration experience REST GraphQL; youre comfortable reading API docs and building integrations with enterprise SaaS tools

• Data modeling skills dimensional modeling schema design understanding of how data will be used downstream

Desired Qualifications & Skills:

• 6 years of data engineering or software engineering experience

• 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.)

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. 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: .

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.

Required Experience:

Senior IC