Castelion · 11 hours ago
Senior EHS Engineer
Torrance, CA
Full-time
Onsite
Mid, Senior Level
$90K/yr - $130K/yr
3+ years expCastelion is innovating in defense development and production with a focus on rapid design cycles and modern manufacturing strategies. The Senior EHS Engineer will support manufacturing, R&D, and test operations by serving as the technical authority for hazard identification and risk assessment, ensuring safety and compliance in a fast-paced environment.
AerospaceGovernmentManufacturingMilitaryNational Security
No H1B
U.S. Citizen OnlyHiring Manager
Nicholas Sparks
Responsibilities
Integrate EHS requirements into product and process design by leading safety in design activities including risk assessments, Job Hazard Analyses (JHAs), and formal hazard analyses (HAZOP, LOPA, FMEA) from concept through production and sustainment
Define hazard classifications, risk rankings, and the engineering and administrative control strategies required to ensure hazards are effectively controlled across manufacturing, testing, and R&D operations
Establish industrial hygiene and exposure control frameworks to protect employee health and meet applicable regulatory requirements
Interpret OSHA, Cal OSHA, EPA, fire code, and DoD requirements and translate them into site specific EHS programs and procedures
Own the technical framework for core EHS programs that govern how hazardous work is performed across manufacturing, testing, and R&D operations
Lead investigation and analysis of significant incidents and near misses to identify systemic causes and drive risk-reduction actions
Serve as the technical authority for regulatory inspections, audits, and agency interactions
Design and maintain site Emergency Action Plan and emergency response strategies
Qualification
Required
Bachelors degree in Environmental Engineering, Chemical Engineering, Industrial Engineering, Safety Engineering, or a related technical field
3+ years of experience supporting EHS programs in manufacturing, R&D, or test environments
Experience conducting hazard analyses and risk assessments
Experience supporting industrial hygiene activities, including exposure evaluations, sampling, or coordination with IH professionals
Working knowledge of applicable EHS regulations and standards (e.g., OSHA/Cal-OSHA, EPA, DOT, fire code)
Hands-on experience supporting core occupational safety programs (e.g. machine guarding, PPE, lockout/tagout, electrical safety, hazard communication)
Ability to operate independently in a fast-paced, ambiguous startup environment and partner effectively with engineering and operations teams
Ability to travel as needed to support operations, testing, or program needs
Ability to meet U.S. export control requirements (e.g., U.S. Person under ITAR/EAR, as applicable)
Preferred
5+ years of experience supporting EHS programs in manufacturing, R&D, or high-hazard environments
Experience in defense, aerospace, advanced manufacturing, energetics, propulsion, or similarly regulated industries
Experience integrating EHS requirements into product or process design and participating in engineering or safety design reviews
Familiarity with EHS management systems or structured program frameworks (e.g., ISO 14001, ISO 45001)
Professional certification such as CSP, CIH, ASP, or progress toward certification
Experience working in a startup or rapidly scaling organization
Benefits
Long-term stock incentives
Comprehensive medical, vision, and dental insurance
Four weeks of paid time off per year
Company
Castelion
Castelion is a defense tech company that applies modern hardware development and manufacturing processes to national security challenges.
51-200 employees
Funding
Current Stage
Growth StageTotal Funding
$469.61MKey Investors
Lightspeed Venture PartnersSilicon Valley BankAndreessen Horowitz
2025-12-05Series B· $350M
2025-01-29Series A· $70M
2025-01-29Debt Financing· $30M
Leadership Team
Bryon Hargis
Founder // CEO
Andrew Kreitz
Co-Founder and CFO
Recent News
2026-01-19
Company data provided by crunchbase