About Radiant

Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s 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. Radiant’s 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

Radiant is seeking a proactive and strategic Indirect Procurement Manager to lead the sourcing, negotiation, and management of all goods and services for the indirect categories. This role is crucial in building and maintaining a resilient, cost-effective, and reliable supply base. You will be responsible for a wide range of categories, including Facilities, IT, Professional Services, MRO (Maintenance, Repair, and Operations), consumables, and complex R&D collaborations. You will work closely with Engineering, Operations, Finance, and Production members to ensure our partners and suppliers meet Radiant’s stringent technical, quality, and commercial requirements. The ideal candidate thrives in a fast-paced environment, possesses expert negotiation skills, and understands the complexities of sourcing specialized services within regulated industries.

Responsibilities & Duties:

• Strategic Sourcing & Category Management: Develop and execute sourcing strategies for key indirect categories. This includes IT (hardware, software, SaaS), Professional Services (consulting, legal, engineering), MRO (Maintenance, Repair, and Operations), consumables, and R&D collaborations. Identify, evaluate, and select suppliers based on total cost of ownership, quality, reliability, and strategic fit.

• Complex Negotiations: Lead high-stakes commercial negotiations for a variety of agreements, including Master Service Agreements (MSAs), Statements of Work (SOWs), and licensing agreements. Additional focus includes negotiating favorable commercial and intellectual property terms with specialized external service providers, including national laboratories (e.g., Idaho National Laboratory), university research labs, and other advanced technical services.

• Facilities & MRO Procurement: Take full ownership of procurement for all facility-related needs. This includes sourcing and managing contracts for building maintenance, repairs, capital equipment, security services, janitorial, waste management, utilities, and supporting small-scale construction and lab build-out projects.

• Contract Management: Develop, review, and manage the full lifecycle of supplier agreements, including Master Supply Agreements (MSAs), Non-Disclosure Agreements (NDAs), and Purchase Order terms and conditions, ensuring compliance and mitigating risk.

• Purchase Order Management: Oversee the complete procure-to-pay lifecycle, from requisition review and PO placement to tracking and closure, ensuring timely delivery of goods and services.

• Supplier Relationship Management (SRM): Build and maintain strong commercial relationships with key indirect suppliers, acting as the primary point of contact for contractual and commercial matters and conducting regular business reviews to drive performance.

• Cost Analysis & Optimization: Analyze market trends and total cost of ownership to identify and execute on cost-saving opportunities across all indirect spend categories.

• Risk Management: Assess and mitigate supply chain risks related to indirect procurement, including supplier financial health, service level failures, and data security.

• Cross-functional Collaboration: Work seamlessly with internal stakeholders across all departments to understand their requirements, resolve supply issues, and support company-wide program timelines.

• Process Improvement: Contribute to the development and refinement of procurement policies, procedures, and systems to enhance efficiency, compliance, and control.

Key Deliverables:

• Successfully negotiated contracts and favorable terms with critical service providers, labs, and facilities vendors.

• Demonstrated total cost of ownership (TCO) savings and cost avoidance through effective negotiation and strategic sourcing.

• A managed portfolio of purchase orders ensuring on-time delivery and service level agreement adherence.

• Comprehensive supplier performance reports focusing on commercial, delivery, and quality metrics for executives and senior management.

• Effective mitigation plans for identified supply chain risks.

• Streamlined and compliant procurement processes that support Radiant's Quality Assurance Plan and growing strategic needs.

Required Qualifications & Skills:

• Bachelor’s degree in Supply Chain Management, Business Administration, Engineering, or a related field.

• 3–8 years of relevant experience in indirect procurement, strategic sourcing, or supply chain management, preferably within technology, energy, or industrial sectors.

• Proven track record of successful negotiation and management of complex service agreements and contracts.

• Strong understanding of indirect procurement processes (e.g., RFQ/RFP, category management, procure-to-pay).

• Excellent analytical, organizational, and problem-solving skills.

• Strong interpersonal and communication skills (written and verbal).

• Proficiency with ERP/MRP systems and standard office software.

• Ability and willingness to travel occasionally to supplier locations (up to 20%).

Desired Qualifications & Skills:

• Experience sourcing for Facilities, MRO, IT, and Professional Services categories.

• Experience negotiating contracts with government entities, national laboratories, or universities.

• Familiarity with quality management systems (e.g., ISO 9001, AS9100) and their implications for procurement.

• Understanding of supply chain dynamics within the energy or nuclear sector.

 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. Radiant’s 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 today’s advanced reactor builders don’t wait for job postings. They join the winning team. If that’s you, contact us directly for immediate opportunities: recruiting@radiantnuclear.com.

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.

This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls.