Director, Supply Chain Management – Kaleidos

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.

The Director will lead a team of Supply Chain Managers and Buyers responsible for critical reactor components and services driving consistent adherence to processes while continuously improving workflows as the organization scales. This role partners closely with EngineeringFinanceRegulatoryProductionSupplier Development andPlanningleadership to ensure material availability reliable promise dates and clean supply chain data that supports confident decision-making in a regulated fast-moving environment.

This is a hands-on leadership role for someone who thrives on operational excellence accountability and turning complex supply chains into predictable execution engines.

RESPONSIBILITIES

Supply Chain Execution & Leadership

• Lead and develop a team of Supply Chain Managers and Buyers responsible for direct procurement supportingKaleidosreactor builds.
• Establish clear expectations operating cadence and accountability across sourcing PO executionexpediting and supplier follow-up.
• Drive a culture of urgency ownership and data accuracy across the supply chain organization.

Sourcing & Procurement Operations

• Oversee sourcing strategies and supplierselectionin close collaboration with Supplier Development Engineers (SDEs) and Engineering.
• Ensure commercial terms lead times quality clauses and flow-down requirements are correctly reflected in contracts and purchase orders.
• Maintain tight control of the full PO lifecyclefrom requisition to delivery closure and post-delivery follow-up.

Delivery & Performance Management

• Own supply chain health metrics including promise date integrity on-time delivery to need date PO line health and supplier responsiveness.
• Ensure meeting notes supplier commitments and follow-ups are documented tracked and reflected accurately in systems.
• Proactivelyidentifyat-risk parts and suppliers mobilizing resources to protect manufacturing and program schedules.

Process Discipline & Continuous Improvement

• Enforce consistent use of established supply chain processes whileidentifyingand implementing improvements to streamline workflows.
• Partner with Supply Chain Operations and Technology teams to implement dashboards reporting and data pipelines that improve visibility and decision-making.
• Support integration of supply chain into engineering change processes ensuring material impact is assessed and dispositioned correctly.

Cross-Functional Execution

• Serve as a primary escalation point for material supplier and delivery issuesimpactingKaleidosexecution.
• Ensure procurement and supplier activitiesremaincompliant with internal controls and external regulatory requirements.

DELIVERABLES

• Consistently high on-time delivery performance aligned to manufacturing and program needs.
• Clean reliable supply chain data (promise dates lead times supplier status) that executives andoperationsteams can trust.
• Well-run procurement operations with disciplined PO execution and supplier follow-through.
• Measurable improvements in supplier performance responsiveness and issue resolution.
• Scalable procurement and execution processes that support futureKaleidosbuild rates and configurations.
• A high-performing accountable supply chain teamoperatingwith clarity and confidence.

SKILLS & QUALIFICATIONS

• Bachelors degree in Supply Chain Management Business Engineering or a related field.
• 812 years of experience in procurement supply chain management or manufacturing operations including leadership of teams.
• Strong operational understanding of sourcing contracting PO executionexpediting and supplier performance management.
• Proven ability to run complex procurement operations with tight schedules and high accountability.
• Experience working cross-functionally with Engineering Quality Manufacturing and Program teams.
• High comfort level using ERP/MRP systems dashboards and performance metrics to manage execution.
• Excellent leadership communication and organizational skills.
• Willingness to travel to suppliers as needed (up to 30%).

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.