Environmental, Health & Safety (EHS) Manager

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.

Environmental Health & Safety (EHS) Manager

We areseekingan Environmental Health & Safety (EHS) Manager to serve as the site-level EHS authority supporting manufacturing and operations in a lean fast-moving environment. This role owns the development implementation and execution of EHS programs that protect employees ensure regulatory compliance and scale with the business. The EHS Manager maintains a strong shop-floor presence and partners closely with Manufacturing Operations and Facilities to identify hazards reduce risk and embed safety and environmental compliance into daily operations. This role balances hands-on field engagement with program ownership regulatory interface and continuous improvement leadership.

Responsibilities and Duties:

Safety leadership and OSHA compliance:

• Serve as the siteauthorityfor OSHA / Cal-OSHA compliance including inspectionsregulatory correspondencerecordkeeping and corrective actionmanagement.
• Develop implement andmaintainrequiredsafety programs(e.g. IIPP Hazard Communication Lockout/Tagout Electrical Safety Hot Work Contractor Safety) to support a growing manufacturing operation.
• Develop and leadallsafety training.
• Define andmaintainPPE requirements conduct hazard assessments and ensure properselection training and usage.
• Own emergency preparedness programs including Emergency Action Plans evacuation procedures drills and emergency response coordination.
• Partnerwith Facilities on fire suppression alarm and detection systems.
• Conduct routine shop-floor safetyobservations
• Trackleading andkey EHS metrics and drive proactive riskreduction.
• Leadincidentreportinginvestigationsand root cause analysisforinjuriesfiresspillsnear-misses and emergency events.

Manufacturing & operations risk mitigation:

• Partner closely with manufacturing and operations teams toidentifyhazards and implement engineering and administrative controls.
• EvaluateEHS risk for new processes equipmenttoolingand work centersprior to installation or commissioning toinfluencedesign decisionsand ensure safety requirements are met.
• Maintain a regular shop-floor presence toidentifyhazardsobserveoperationsanddrivecontinuous improvement initiatives.

Hazardous materials & waste management:

• Ownhazardous materialsmanagement includinginventorySDS labeling storagecompatibilitylocationsand quantities.
• Ensure complianthandling andstorageof hazardous materials including flammable and combustible materials.
• Manage hazardous waste accumulation areas manifestsinspectionsanddisposalvendor coordination.

Environmental compliance & permitting:

• Manage andmaintainenvironmental permits and programs including hazardous materials hazardous waste air emissions wastewater and stormwater.
• Ensure permit conditions and regulatory requirements are implementeddocumented androutinely verified.
• Leadenvironmental inspections and regulatory interactionswith local state and federal agenciesasrequired.
• Trackleading andkey EHS metrics and drive proactive risk reduction.
• Partner with Facilities on facility modifications construction and equipment installations to ensure safety andenvironmental requirementsare addressed.

Required Skills and Qualifications:

• Bachelors degree in environmental engineering safety engineering industrial engineering environmental science or a related field.
• 5 years of EHS experience in manufacturing industrial or regulated environments.
• Strong working knowledge of OSHA / Cal-OSHA fire safety hazardous materials managementand environmental compliancerequirements.
• Experience developing and deliveringengagingsafetytraining
• Comfortable acting as the primary EHS owner in a lean organization.
• Hands-on practical and effective at partneringdirectlywith manufacturing teams.
• Experience working with high-pressure and high-temperature machinery especially custom-built equipmentis a plus.

Desired Skills and Qualifications:

• Safety is embedded into daily operations decision-making and standard worknot treated as a separate function.
• Employees understand hazards feel comfortable raising concerns and know how to respond confidently to emergency events.
• Safetytrainingsarecurrent relevant practical andwell delivered.
• Fire protection systems emergency equipment and controls are wellmaintained understood and trusted by employees.
• Manufacturing engineering and operations teams proactively engage EHS early to solve problems and design safer solutions.
• Risks and trends areidentifiedearly and corrective actions are implemented before incidents occur.
• The EHS Manager is a trusted visible presence on the shop floorapproachable solutions-oriented and respected for balancing operational needs with employee safety.

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

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.