Manufacturing Engineer, Bonding

Castelion Corporation; Torrance (CA); On-site; USD 90,000 - 130,000; Full time

Benefits offered by this job

Equity

Paid time off

Medical coverage

Dental & Vision

401(k)

Parental leave

Meals provided

Snacks & beverages

Fitness stipend

EV charging

Job summary

Castelion Corporation in Torrance, CA is seeking a Manufacturing Engineer to support bonding process development for solid rocket motor systems used in long-range hypersonic vehicles. This exempt, full-time role requires close collaboration with engineering teams to advance designs and mature manufacturing, assembly and integration processes.

You will lead production optimization, define DFx and build instructions, and coordinate with supply chain.

Qualifications

• Bachelor’s degree in an engineering discipline.
• 2+ years of manufacturing, fabrication, assembly or testing experience or heavy involvement in university design teams.
• Ability to work extended hours and travel up to 30%.

Responsibilities

• Lead day to day production and process optimization of bonded assemblies across Castelion products.
• 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).

Skills

Bonding

Manufacturing

Aerospace

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.

Manufacturing Engineer, Bonding

Castelion is seeking a Manufacturing Engineer to support the development of the solid rocket motor systems required for the design and build of long-range hypersonic strike vehicles. This will be a full-time, exempt position located in our Torrance, CA facility

As a Manufacturing Engineer, you will work closely with our engineering teams to execute highly technical solid rocket motor builds for our research vehicles, assist in advancing designs, overseeing site maintenance and upgrades, and play a critical role in defining and maturing manufacturing, assembly and integration processes.

Responsibilities

• Lead day to day production and process optimization of bonded assemblies across all Castelion products.
• 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

• Bachelor’s degree in an engineering discipline
• 2+ 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 manufacturing.
• Experience with Bonding using RTVs and Epoxies
• Experience with NX/Teamcenter CAD/PDM
• Hands on experience in vacuum bagging, materials and process development.
• 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

To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.

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. Failure to obtain or maintain any required clearance or authorization may result in reassignment, leave, or separation from employment, consistent with business needs and applicable law.

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.

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.