Environmental Health & Safety (EHS) Lead

About the role

At Antares, our long-term mission is to make clean energy abundant from Earth to the Asteroid Belt. We're fueled by the belief that advanced nuclear energy can strengthen our military, solve the climate crisis, elevate global living standards, and expand humanity's presence in outer space. To achieve our mission, we're building mass-producible, inherently safe, deployable microreactors that can be used terrestrially, underwater, and in space. Formed in 2023, the Antares team hails from SpaceX, The White House, MIT, Rigetti Computing, The Air Force, General Atomics, Relativity Space, Ursa Major, and National Laboratories like Los Alamos, Idaho, and Oak Ridge. Antares has raised over $130M in venture capital from top-tier investors and has over $13M in government funding. We are seeking an EHS Lead to build and own all environmental, health, and safety programs across our advanced nuclear reactor manufacturing and testing operations. This role spans high-hazard environments including alkali-metal handling, high-temperature testing, welding, machining, electronics manufacturing, and electrical test. You will support our manufacturing operations located in Torrance, CA as well as involvement with environmental and safety needs at our initial reactor test sites. You will develop scalable safety procedures, training, and compliance systems and ensure readiness for future deployments and eventual decommissioning activities. Roles and Responsibilities: Develop and maintain comprehensive Job Hazard Assessments (JHAs) for all manufacturing and test operations Build and implement safety protocols and procedures for manufacturing, testing, and reactor assembly/operation Create and deliver safety training programs, including alkali-metal handling, thermal testing, welding, and electrical safety Develop into the company's Radiation Safety Officer, establishing radiological safety programs, monitoring, and controls Maintain the hazardous materials inventory and ensure compliant storage, labeling, and handling Manage hazardous waste disposal, including characterization, packaging, manifests, and vendor coordination Lead PPE assessments, selection, training, inspection, and lifecycle management Conduct EHS audits, inspections, and incident investigations, driving root-cause analysis and corrective actions Primary liaison for Antares with city, state, and federal authorities responsible for EHS

Requirements

• Bachelor's degree in Environmental Health & Safety, Engineering, Chemistry, or other STEM field
• 3+ years of EHS experience in industrial manufacturing, high-hazard test environments, nuclear, aerospace, or chemical sectors
• Proven ability to develop JHAs, safety procedures, and multi-hazard training programs.
• Experience with hazardous-materials control, hazardous-waste management, and PPE program development
• Preferred Skills & Experience:
• Professional certifications such as CSP, CIH, CHMM, or RSO training/experience
• Experience with radiological work, radiological safety programs, or RSO responsibilities
• Familiarity with alkali-metals, high-temperature testing, or rigging and handling
• Strong communication and training delivery skills across technical and nontechnical teams
• Ability to operate in a dynamic startup environment with high ownership and hands-on execution
• Additional Requirements:
• Ability to work long hours and weekends as necessary to support critical milestones
• Location
• Culture
• At Antares, we like to specifically tie each role to our founding document's set of values-here are the top five cultural values we think you should believe at your core to be successful:
• Obsess over the End User - The customer and end user are often not the same. We will never build globally competitive commercial products if we lose sight of our end users and their entire interaction with the product life cycle

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