EHS Engineer Torrance, CA EHS

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.

Department: Environmental, Health and Safety

Reports To: Site EHS Manager - Torrance

About This Role

The Environmental, Health & Safety (EHS) Engineer provides hands‑on and technical EHS support for Castelion’s Torrance manufacturing, R&D, and development test operations.

This role partners closely with engineering, manufacturing, test, facilities, and EHS team members to identify hazards, evaluate technical risk, and develop practical controls that enable safe and efficient operations.

The EHS Engineer will have a particular focus on the technical evaluation of new and evolving equipment, processes, and test activities across manufacturing, composites and materials processing, machining, avionics, and development testing .

This is a field-oriented role that bridges EHS and engineering. The successful candidate will be comfortable moving between the manufacturing floor and technical discussions—whether evaluating a new piece of equipment, reviewing a test setup, developing a risk assessment , participating in a design or readiness review, investigating an incident, or working with engineers to establish controls for a new process.

Responsibilities

• Provide hands‑on and technical EHS support for manufacturing, R&D, development test, maintenance, and facility operations, with a strong presence where work is performed.
• Identify and evaluate workplace, equipment, process, and test hazards and partner with engineering and operations teams to develop practical engineering, administrative, and procedural controls.
• Lead and support technical risk assessments, including JHAs, PHAs, FMEAs, What-If analyses, equipment/process reviews, and readiness assessments for new, modified, and higher-risk operations.
• Support the introduction, modification, and commissioning of equipment, processes, and test systems by evaluating EHS requirements and ensuring appropriate safeguards and controls are incorporated before operation.
• Provide technical safety support across manufacturing, composites and materials processing, machining, avionics, and development testing, including pressure, thermal, vibration, electrical, mechanical, and other hardware test activities.
• Evaluate technical safety concerns involving machine guarding, hazardous energy, pressure systems, electrical hazards, ventilation, chemical use, material handling, and other equipment or process hazards.
• Support industrial hygiene activities, including identification of potential exposures, exposure assessments and sampling strategies, evaluation of results, and implementation of engineering and work‑practice controls.
• Lead and support investigations of incidents and high‑potential near misses, identify technical and systemic causes, and develop and verify effective corrective actions.
• Provide technical support for core EHS programs, including but not limited to LOTO, machine safety, electrical safety, respiratory protection, Hazard Communication, PPE, hot work, fall protection, material handling, and emergency preparedness.
• Conduct field assessments and operational walkdowns to verify controls are effective, identify emerging risks, and work with operations to drive corrective actions to closure.
• Interpret applicable OSHA/Cal‑OSHA, fire code,…