EHS Technician

Castelion; Torrance (CA); On-site; USD 65,000 - 90,000; Full time

Benefits offered by this job

Long-term equity

Paid time off

Company health benefits

Paid parental leave

Fitness stipend

EV charging on-site

Catered meals

Job summary

Castelion is seeking an EHS Technician to provide hands-on field support across manufacturing, R&D and test operations. You will work on the production floor and in test areas, conducting inspections, handling safety equipment, and supporting training delivery while escalating hazards as needed.

Reporting to the EHS Manager, you will coordinate with the EHS Specialist to balance site coverage, maintain documentation, ensure hazard communication, and help maintain a fast-paced, high-hazard

Qualifications

• High school diploma or equivalent plus related EHS education or certification.
• 1–3 years of EHS or safety support experience in manufacturing or R&D.
• Familiar with OSHA and Cal-OSHA requirements.
• Able to lift up to 50 pounds and wear PPE.
• Must meet U.S. export control requirements (ITAR/EAR).

Responsibilities

• Perform daily/weekly inspections of manufacturing, R&D, and test areas using approved checklists.
• Coordinate coverage with the EHS Specialist to avoid gaps or duplication.
• Verify PPE, lockout devices, eyewash and shower stations, fire extinguishers, and spill kits.
• Triage and maintain hazardous waste accumulation areas and arrange shipments.
• Assist with chemical storage segregation and inventory to support hazard communication.
• Support on-site response actions as directed.
• Coordinate EHS training logistics including room setup, attendance tracking, and records filing.

Skills

Hazard identification

Safety inspections

PPE and equipment handling

Recordkeeping & compliance

ITAR/EAR export control awareness

Education

Associates degree or technical certificate in EHS or related field

EHS certificate program or military safety training

Job description

Castelion is moving incredibly fast to develop and deliver advanced defense systems at a time when execution matters more than ever. We believe focus and technical excellence are decisive advantages - and we are building a team that can deliver real capability, not just concepts.

This is a rare opportunity to join at an early stage, where your work will directly shape critical systems, influence major technical decisions, and have immediate, real-world impact.

The Environmental, Health & Safety (EHS) Technician provides hands on field support to manufacturing, R&D, and test operations by performing the day-to-day tasks that keep EHS programs running. This role reports directly to the EHS Manager and works in tandem with the EHS Specialist to cover the site, sharing field workload and coordinating daily priorities.

The EHS Technician spends most of the workday on the production floor and in test areas conducting inspections, servicing and staging safety equipment, handling hazardous materials and waste to accumulation area, and supporting training delivery. This role executes established program requirements instead of developing them, escalates hazards to the EHS Manager, and reinforces safe work practices in a fast paced, high hazard environment. Castelion is seeking an individual who with the ability to collaborate with area owners to reduce safety risks across multiple departments.

Responsibilities

• Perform daily and weekly walkthroughs of manufacturing, R&D, and test areas using approved checklists, documenting findings. Partner with EHS team on hazard identification and control selection.
• Coordinate daily and weekly coverage with the EHS Specialist so inspections, training, open ticket items, and field support are divided across the site without gaps or duplication.
• Verify condition and availability of PPE, lockout devices, eyewash and shower stations, fire extinguishers, and spill kits.
• Triage and maintain hazardous waste accumulation areas to include satellite area upkeep and staging containers for scheduled waste shipments.
• Assist employees with secondary container labeling and chemical storage segregation, maintenance of chemical inventory, to support hazard communication requirements.
• Support with on-site response actions where directed.
• Coordinate EHS training logistics including, room and material setup, attendance tracking, and records filing.

Basic Qualifications

• High school diploma or equivalent, and one of the following:
• Associates degree or technical certificate in occupational health and safety, environmental science, industrial hygiene, or a related technical field
• Completion of a recognized EHS certificate program, military safety technical training, or apprenticeship
• Additional directly applicable hands on EHS experience in lieu of formal post-secondary education
• One to three years of hands on EHS, industrial hygiene, environmental, or safety support experience in manufacturing, research and development, construction, or industrial environment
• Familiarity with basic OSHA and Cal-OSHA workplace safety requirements
• Ability to accurately complete inspection forms, logs, and recordkeeping documentation
• Comfortable working on a production floor and in outdoor test environments, including standing, walking, climbing ladders, and lifting up to 50 pounds
• Ability to wear required PPE, including respiratory protection
• Ability to meet U.S. export control requirements (ITAR or EAR)

Preferred Skills and Experience

• Associate's degree in occupational health and safety, environmental science, or industrial hygiene
• 2+ of EHS experience in aerospace, defense, manufacturing, or another high hazard industry
• OSHA 10 or OSHA 30, DOT hazmat shipping, forklift, RCRA certifications, or first aid/CPR certifications
• Experience managing hazardous waste accumulation areas under RCRA or California hazardous waste requirements
• Experience working in a startup or fast paced environment

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.

• All full-time employees are granted meaningful long-term equity, sharing in the company's significant growth trajectory.
• We offer four (4) weeks of paid time off, ten (10) company-paid holidays, and comprehensive health benefits - including 100% employee-covered medical and strong dependent coverage, along with dental and vision plans.
• We also provide paid parental leave to support growing families, a $100 monthly fitness stipend to promote health and performance, and onsite EV charging for convenience.
• In addition, employees enjoy perks like catered meals, company-covered food during high-demand periods, and a fully stocked kitchen to stay fueled throughout the day.

While this position does not currently require a U.S government-issued security clearance, it may in the near future. Therefore, the ability to obtain and maintain a U.S. government–issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Affirmative Action/EEO Statement

Employment with Castelion is governed on the basis of competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.