Senior Manufacturing Engineer

Castelion; Torrance (CA); On-site; USD 110,000 - 170,000; Full time

Benefits offered by this job

Employee equity

Paid time off (4 weeks)

Medical coverage 100% for employee

Dental & Vision coverage

FSA/HSA options

Retirement 401k

Paid parental leave

Catered meals

Snacks & beverages

Fitness stipend

EV charging

Job summary

Castelion is seeking a Senior Manufacturing Engineer to support development and production of critical components for long-range hypersonic strike vehicles. This is a full-time, exempt position based in our Torrance, CA HQ.

You will lead manufacturing processes, transition from development to high-rate production, create build instructions and test procedures, and collaborate with supply chain and design teams to drive DFM and tooling design.

Qualifications

• Bachelor's degree in engineering required.
• 5+ years of manufacturing, fabrication, assembly or testing experience (or heavy involvement in university design teams).
• Experience with aerospace mechanisms and transitioning development to production.

Responsibilities

• Lead day-to-day production of mechanisms such as the Castelion separation system and Launchers.
• Develop process and factory design to reach production rates of 1000s of units per year.
• Create and refine build instructions, test procedures, safety standards, and mBOMs.
• Develop plans and schedules and coordinate with supply chain to qualify suppliers.
• Design and validate tooling and participate in design reviews to drive DFM.

Education

Bachelor's degree in engineering

Tools

NX/Teamcenter CAD/PDM

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.

Senior Manufacturing Engineer

Castelion is seeking a high capable Manufacturing Engineer to support the development and build of critical components and sub systems for our long range hypersonic strike vehicles. This will be a full time, exempt position based in our Torrance, CA HQ.

Responsibilities

• 5+ years of manufacturing engineering experience for high performance aerospace products


• Lead day to day production of mechanisms such as the Castelion separation system and Launchers.


• Develop process and factory design to transition from development to production rates of 1000s of units per year.


• Develop and refine process documentation including build instructions, test procedures, safety standards, and mBOMs.


• Create, maintain and communicate detailed plans and schedules


• Work closely with supply chain to develop new and existing suppliers


• Design and validate tooling


• Participate in design reviews to drive design for manufacturing (DFM)

Basic Qualifications

• Bachelors degree in an engineering discipline


• 5+ years of manufacturing, fabrication, assembly or testing experience or heavy involvement in extra-curricular design teams at the university level.

Preferred Skills and Experience

• Experience in aerospace mechanisms.


• Experience with structural welding


• Experience with ordinance


• Experience with NX/Teamcenter CAD/PDM


• Hands on experience in metal fabrication


• Experience in transitioning development process to production


• Employee Equity: Meaningful equity for all full-time employees - share value has increased 150x in three years


• Personal Time Off: Four (4) weeks of paid time off to unplug, reset, and come back sharp—velocity matters, burnout doesn’t


• Medical: We offer plans at 100% employee covered and 80% of dependent coverage


• Dental & Vision: We cover 90% employees and 80% for dependents to ensure you and your family have access to quality preventive and ongoing care


• FSA/HSA: To support long-term health and financial resilience, we offer FSA and HSA options that allow employees to set aside pre-tax dollars for eligible medical and dependent care expenses


• Retirement: 401k plan offered to support long term financial growth along side high-impact, high-velocity work


• Paid Parental Leave: We support growing families with meaningful time to bond and recover. Birthing parents are eligible for up to 10 weeks of paid leave, while non-birthing parents may take up to 4 weeks of paid leave. This time can be used for pre-natal care, pregnancy, childbirth, and related medical needs—ensuring every parent has the support they need during this important life moment.8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees


• Meals & Catering: Frequently catered lunches and team meals, plus company-covered meals when extra time or effort is required


• Snacks & Beverages: Fully stocked kitchen with unlimited snacks and drinks to keep you fueled throughout the day


• Performance & Fitness: $100 monthly fitness stipend to support peak performance and health, both inside and outside of work


• EV Charging: Onsite electric vehicle charging available for employees

Physical Demands

• Must be willing to work extended hours and/or weekends as needed


• Must be able to travel up to 30%


• Must be able to lift more than 50lbs

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.

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.