Radiant · 1 day ago
Director, Supply Chain Management – Kaleidos
El Segundo, CA
Full-time
Hybrid
Director/Executive
8+ years expRadiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The Director of Supply Chain Management will lead a team responsible for procurement supporting reactor builds, ensuring material availability and driving operational excellence in a fast-paced environment.
Clean EnergyEnergyEnergy EfficiencyRenewable Energy
No H1B
Responsibilities
Lead and develop a team of Supply Chain Managers and Buyers responsible for direct procurement supporting Kaleidos reactor builds
Establish clear expectations, operating cadence, and accountability across sourcing, PO execution, expediting, and supplier follow-up
Drive a culture of urgency, ownership, and data accuracy across the supply chain organization
Oversee sourcing strategies and supplier selection in 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 lifecycle—from requisition to delivery, closure, and post-delivery follow-up
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
Proactively identify at-risk parts and suppliers, mobilizing resources to protect manufacturing and program schedules
Enforce consistent use of established supply chain processes while identifying and 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
Serve as a primary escalation point for material, supplier, and delivery issues impacting Kaleidos execution
Ensure procurement and supplier activities remain compliant with internal controls and external regulatory requirements
Qualification
Required
Bachelor's degree in Supply Chain Management, Business, Engineering, or a related field
8–12+ years of experience in procurement, supply chain management, or manufacturing operations, including leadership of teams
Strong operational understanding of sourcing, contracting, PO execution, expediting, 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%)
Benefits
Substantial incentive stock plan for all full-time employees.
100% premium coverage for base Silver level plan for employee + 50% premium coverage for dependents. Platinum plans available.
Sponsored memberships for eligible employees and their dependents.
100% premium coverage for top tier plan + 50% for dependents.
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.
Company
Radiant
Radiant develops portable nuclear microreactors designed to generate electricity and heat in a compact, factory-built form.
51-200 employees
Funding
Current Stage
Late StageTotal Funding
$518.82MKey Investors
Andreessen HorowitzUnion Square Ventures
2025-12-17Series D· $300M
2024-11-14Series C· $165M
2023-04-18Series B· $40M
Leadership Team
Doug Bernauer
Chief Executive Officer
Recent News
alleywatch.com
2026-01-23
2026-01-07
The Motley Fool
2026-01-04
Company data provided by crunchbase