EHS Manager

Why Castelion, Why Now 

Castelion is moving incredibly fast to develop and deliver advanced defense systems at a time when execution matters more than ever. We believe focus, ownership, and excellence are decisive advantages - and we're building a world-class team to turn bold ideas into real capability. 

This is a rare opportunity to join at an early stage, where you'll have significant ownership, collaborate with exceptional teammates, and make a direct, measurable impact on our mission and the future of the company - regardless of your function.  

EHS Manager

The EHS Manager will lead Environmental, Health, and Safety efforts at Castelion's Torrance, California headquarters, supporting engineering, manufacturing, integration, and test activities. This role is responsible for building, implementing, and managing EHS programs that ensure safe operations and regulatory compliance within a fast-paced aerospace development and manufacturing environment.

The EHS Manager will partner closely with engineering, manufacturing, and leadership teams to integrate safety and environmental stewardship into daily operations, facility planning, and hardware development activities. The ideal candidate brings experience in industrial safety, environmental compliance, hazard analysis, and regulatory programs within aerospace, defense, manufacturing, or other technically complex operational environments.

Responsibilities

• Serve as the EHS leader for the Torrance headquarters, responsible for developing and managing site EHS programs, systems, and policies to ensure safe operations and regulatory compliance
• Partner with engineering, manufacturing, and operations teams to integrate EHS considerations into development activities, equipment use, laboratories, manufacturing cells, and facility operations.
• Develop and maintain risk management programs including hazard assessments, job hazard analyses, and safety reviews to identify and mitigate operational risks.
• Ensure compliance with OSHA, EPA, and applicable state and local regulations, including oversight of environmental programs such as hazardous materials management, hazardous waste, air emissions, and stormwater compliance.
• Implement and continuously improve safety programs through audits, inspections, training, and safety initiatives that strengthen operational discipline and safety culture.
• Lead incident investigations and root cause analysis for safety or environmental events and implement corrective and preventive actions.
• Develop and maintain emergency response programs including evacuation procedures, drills, and emergency preparedness planning.
• Deliver EHS training and partner with employees and managers to reinforce safe work practices across engineering labs, manufacturing operations, and office environments.
• Support EHS initiatives across other Castelion locations as needed, including collaboration with manufacturing and test facilities.

Basic Qualifications

• Bachelors degree in Environmental Health and Safety, Environmental Engineering, Chemical Engineering, Industrial Engineering, Safety Engineering, or a related technical field.
• 5+ years of experience supporting EHS programs in manufacturing, aerospace, defense, laboratory, or other technically complex operational environments.
• Experience conducting hazard analyses and risk assessments in engineering, laboratory, or production environments.
• Working knowledge of OSHA, EPA, and California state and local EHS regulations.
• Experience leading incident investigations and implementing corrective action programs.
• Hands-on experience developing and implementing EHS programs and safety training.
• Strong communication and leadership skills with the ability to influence cross-functional teams.

Preferred Skills and Experience

• Professional certification such as CSP, CIH, or similar.
• Experience supporting aerospace, defense, or advanced manufacturing organizations.
• Experience supporting hardware development environments including laboratories, test operations, or integration facilities.
• Familiarity with EHS management systems such as ISO 14001 and ISO 45001.
• Experience applying continuous improvement and risk-based safety methodologies.

Castelion offers a generous benefits package. Please refer to the bottom of our Careers page for more details.  

Other Duties 

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice. 

Additional Eligibility Requirements 

This position may require access to classified information or restricted U.S. Government sites, systems, or information, as determined by the Company and/or applicable U.S. Government requirements. If the position is so designated, your employment in the role may be contingent upon your ability to obtain and maintain the required U.S. Government security clearance or other government authorization, and to satisfy any citizenship or other eligibility requirements imposed by applicable law, regulation, executive order, or government contract requirements. You will be notified if and when such requirements apply. 

Affirmative Action/EEO Statement 

Castelion is an Equal Opportunity Employer. We are committed to providing equal employment opportunities to all applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, genetic information, protected veteran status, or any other characteristic protected by applicable federal, state, or local law. 

Castelion is committed to providing reasonable accommodations to qualified individuals with disabilities throughout the application and hiring process. If you require a reasonable accommodation to complete an application, participate in the interview process, or otherwise participate in the hiring process, please contact hr@castelion.com. Requests for accommodation will be considered on an individual basis and handled in accordance with applicable law. 

Castelion is committed to fostering a workplace where employment decisions are based on qualifications, business needs, and the ability to perform the essential functions of the role, with or without reasonable accommodation. 

EAR/ITAR Requirements 

This position requires access to export-controlled information, and as such, employment (or hiring of a contractor) is contingent upon the candidate’s ability to access all applicable export-controlled information without additional export licensing being required by the Bureau of Industry and Security and/or the Directorate of Defense Trade Controls.