Senior Production Technician

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

Job summary

Castelion Corporation is seeking a Production Technician in Torrance, CA to drive high-rate aerospace assembly for flight components and production test. You will help standardize processes, set up tooling and fixtures, and ensure timely, high-quality delivery of assemblies throughout the year.

The role emphasizes hands-on operation, ability to interpret drawings, and working in a fast-paced, security-conscious environment with safety as a priority.

Qualifications

• 3+ years in a manufacturing/production environment.
• Familiarity with torque and mechanical tools.
• Ability to read drawings and interpret specifications.
• Able to lift up to 35 lbs and stand for long periods.

Responsibilities

• Execute complex aerospace mechanism, bonded, and mechanical assembly builds.
• Maintain production rate, schedule, quality, and safety requirements.
• Develop standard work instructions for high-volume output.
• Assist in tooling, fixtures, and workstations for production builds.
• Perform surface preparation, adhesion application and casting operations.
• Run functional testing and document results.
• Identify opportunities to improve cycle time and yield.
• Ensure equipment is maintained and the production area is organized and safe.

Skills

Manufacturing experience

Read drawings

Quality systems

Safety awareness

Tools

Torque tools

Gauges/indicators

MES software

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, 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.

As a Production Technician, you will play a key role in executing high-rate assembly builds for mechanical assemblies supporting Castelion's flight and production activities in 2026. These assemblies include bonded components, mechanisms, structural sub assemblies, and production test. You will help standardize production processes, build out the production area, and implement the tools, fixtures, and mechanisms needed to efficiently produce assemblies at high volume. This hands‑on role is critical to ensuring timely, high-quality delivery of numerous vehicles throughout the year.

Responsibilities

• Execute complex aerospace mechanism, bonded, and mechanical structural assembly builds in support of Castelion's flight and high-rate production objectives.
• Perform repeatable, high-quality assembly operations while meeting production rate, schedule, quality, and safety requirements.
• Help transition mechanism and bonded assembly build processes into standardized, production-ready work instructions and processes for high-volume output.
• Assist with developing and implementing tooling, fixtures, workstations, and infrastructure necessary to execute efficient production builds.
• Perform surface preparation, adhesion application and casting operations.
• Run functional testing of flight components and accurately document results in accordance with controlled procedures.
• Identify opportunities to improve cycle time, first-pass yield, line balance, and overall production efficiency.
• Ensure shop equipment is well-maintained and calibrated where necessary, and maintain an organized, safe production area.

Basic Qualifications

• 3+ years of professional experience in a manufacturing/production environment
• Familiarity with torque and mechanical tools (gauges and indicators).
• Ability to use computer systems to support process transactions and quality management processes.
• Ability to interpret drawings and specifications; complete travelers; and use visual aids and procedures as products are built.
• Ability to stand for extended periods.
• Ability to lift up to 35 lbs.
• Ability to walk throughout the facility and on uneven terrain.
• Ability to perform repetitive motions with hands and arms.

Preferred Skills and Experience

• 5+ years of experience in aerospace manufacturing, with a focus on electromechanical mechanisms, complex mechanical assemblies, bonded assemblies or production test
• A&P License.
• Demonstrated ability to read, interpret, and work from drawings, controlled documentation, and processes such as layout drawings, mechanical drawings, assembly procedures and work instructions, schematics, engineering drawings, and parts lists.
• Experience with MES software and electronic production records.
• Experience bonding components using RTVs, epoxies, or silicones
• Experience working in a high-rate or high-volume production environment with measurable output, takt time, and throughput goals.
• Experience with production tooling, fixtures, work instructions, line balancing, or standardized work.
• Excellent communication and organizational skills.
• Experience with AS9100 or equivalent quality management systems.
• Experience with 5S practices.
• Strong organizational skills, attention to detail, effective time management, and the ability to work with minimal supervision.

Benefits and Perks

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. 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.

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.

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 [e-mail]. 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.