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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. Responsibilities & Duties: - Perform general building maintenance and repair work throughout multiple facilities. - Complete preventive maintenance activities on building systems and equipment. - Perform basic plumbing repairs including faucets, toilets, valves, drains, and fixtures. - Perform basic HVAC maintenance such as filter changes, troubleshooting support, and vendor coordination. - Repair walls, doors, ceilings, flooring, cabinetry, windows, locks, and building hardware. - Assemble office furniture, shelving, storage systems, and workplace equipment. - Install whiteboards, monitors, signage, artwork, and miscellaneous office fixtures. - Support office moves, workstation reconfigurations, and space planning activities. - Perform painting, patching, drywall repairs, and finish work. - Maintain parking lots, sidewalks, loading areas, exterior grounds, and building appearance. - Support janitorial oversight and facility cleanliness initiatives. - Respond to maintenance requests and facility emergencies in a timely manner. - Assist with vendor escorts and contractor coordination. - Maintain maintenance tools, shop organization, and inventory. - Assist with facility improvement and capital construction projects. - Participate in safety inspections and continuous improvement initiatives. - Support special events, workplace setup, and operational needs as assigned. Required Qualifications & Skills: - 3+ years of commercial facilities maintenance, building maintenance, property maintenance, or handyman experience. - Experience performing a wide variety of maintenance and repair work. - Comfortable using hand tools, power tools, ladders, and maintenance equipment. - Basic knowledge of plumbing, carpentry, drywall, painting, hardware, and general building systems. - Strong troubleshooting and problem-solving skills. - Ability to prioritize work in a fast-paced environment. - Ability to lift up to 50 pounds and work on ladders, lifts, and rooftops as needed. - Valid driver’s license. Desired Qualifications & Skills: - Experience supporting manufacturing, aerospace, laboratory, semiconductor, industrial, or technology facilities. - Experience working alongside contractors and construction teams. - Forklift, scissor lift, or boom lift experience. - Experience using CMMS or maintenance management software. - OSHA 10 or OSHA 30 certification. - Experience working in a startup environment. - Basic electrical and HVAC troubleshooting experience. Success in the First 3 Months: - Become familiar with all Radiant facilities and building systems. - Establish strong relationships with internal customers and vendors. - Complete preventive maintenance tasks on schedule. - Improve response times for maintenance requests. - Maintain a clean, organized, and professional appearance across all facilities. - Support ongoing capital projects and workplace improvements. - Identify opportunities to reduce maintenance costs by performing work in- house while maintaining high