Warehouse Manager

Radiant•El Segundo, CA

About The Position

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 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. Radiant’s 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. Warehouse Manager We are seeking a hands-on Warehouse Manager to build, formalize, and operate our warehouse and material control functions in a regulated nuclear manufacturing environment. This role owns end-to-end warehouse operations—including receiving, inspection, inventory control, kitting, internal material movement, packaging, and shipping—while establishing compliant, auditable processes that support safe, traceable, and scalable production. This is a foundational role. You will build on an existing operation, document and standardize processes, implement systems and metrics, and continuously improve warehouse performance as production volume and regulatory complexity increase.

Requirements

5+ years of warehouse or materials management experience in a regulated manufacturing environment (nuclear, aerospace, defense preferred)
Experience building or formalizing warehouse operations, systems, and processes
Strong knowledge of inventory control, traceability, and production support
Experience with ERP/MRP and warehouse management systems
Proven people leadership with a hands-on, execution-focused mindset

Responsibilities

Own all warehouse activities across inbound, internal, and outbound material flow
Support manufacturing schedules through accurate, timely inventory movement and kitting
Allocate labor and resources to meet operational and production demands
Design and evolve the physical warehouse layout, including racking, staging, inspection, and shipping areas
Establish digital inventory structure, including location control, labeling, serialization, and traceability
Select, implement, and optimize ERP/WMS tools, barcoding, and inventory controls in alignment with nuclear quality requirements
Develop and maintain SOPs, work instructions, and training materials
Ensure warehouse operations meet nuclear quality, safety, and audit-readiness standards
Identify process gaps and implement compliant improvements
Maintain high inventory accuracy through disciplined transactions, cycle counts, and controls
Manage discrepancies, nonconformances, and inventory risk communication
Establish and track KPIs for receiving, inventory accuracy, and order fulfillment
Drive lean improvements, reduce waste, and identify automation opportunities
Hire, train, and lead warehouse personnel as the operation scales
Foster a culture of accountability, safety, quality, and continuous improvement

Benefits

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.
Burgeoning satellite offices in Oak Ridge, TN and Washington, D.C., near Capitol Hill.