Environmental, Health & Safety (EHS) Manager

Radiant is an El Segundo CA-based startup building the worlds first mass-produced portable nuclear microreactors. Rising energy demand is straining the U.S. grid and driving up utility costs emissions and interconnection backlogs. Radiant decentralizes energy producing power close to where its used. Its first reactor Kaleidos is a factory-built 1-megawatt fail-safe microreactor that can be transported by land sea or air and runs up to 5 years without refueling. Deployed locally without a decade-long build or permitting fight Kaleidos provides independent power for critical infrastructure like military bases data centers hospitals and remote sites. Founded in 2020 Radiant is under contract to deliver power to the U.S. Army Air Force Navy and has pre-order agreements with Equinix with deployments beginning in 2028.

We arelooking foran Environmental Health & Safety (EHS) Manager to serve as the company EHS authority supporting Radiants multi-site manufacturing and operations in a lean fast-moving environment. This role owns the strategy development implementation and execution of EHS programs and initiatives that protect employees ensure regulatory compliance and scale with the business. The EHS Manager maintains a strong shop-floor presence and partners closely with the engineering manufacturing and facilities teams to identify hazards reduce risk and embed safety and compliance into daily operations. This role balances hands-on field engagement with strategic thinking change management program ownership regulatory interface and continuous improvement leadership.

Responsibilities & duties:

Develop Radiants EHS strategy and own the related implementation roadmap based on both regulatory compliance and first-principles thinking around business risk.

• Work with the executive team and cross-functional leadership to affect change throughout the organization and lead Radiant through its next phase of EHS and operational maturity.

• Serve as company- and site-levelauthorityfor OSHA / Cal-OSHA compliance including inspectionsregulatory correspondencerecord-keeping and corrective actionmanagement.

• Develop implement andmaintainrequiredsafety programs(e.g. IIPP Hazard Communication Lockout/Tagout Electrical Safety Hot Work Contractor Safety) to support a growing multi-site multi-State manufacturing operation.

• Develop and leadallsafety trainings for the organization as needed.

• 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 the facilities team on fire suppression alarm detection systems and other relevant programs.

• Partner with shop-floor teams to identify supportive EHS solutions and embed the EHS mindset into daily work.

• Track and report on keyEHS metrics: drive proactive riskreduction.

• Leadincidentreportinginvestigationsand root cause analysisforinjuriesfiresspillsnear-misses and emergency events.

Manufacturing & operations risk mitigation:

• Partner closely with the 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.

• Partner with facilities team on 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.

• Experience building developing and implementing EHS strategies and programs.

• Deep working knowledge of OSHA / Cal-OSHA fire safety hazardous materials managementand environmental compliancerequirements.

• Comfortable acting as the primary EHS owner in a lean fast-moving organization.

• Proven ability to work crosse-functionally to affect change and embed EHS practices into daily operations.

• Experience working with high-pressure and high-temperature machinery especially custom-built equipmentis a plus.

• 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. 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: .

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 applicants capacity to serve in compliance with U.S. export controls.

Required Experience:

Manager