Senior Manufacturing Engineer

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.

As a Manufacturing Engineering you will be responsible for working closely with our engineering teams to execute complex builds of critical components, advancing designs, oversee maintenance, oversee upgrades, defining manufacturing, maturing subassembly process flow, define assembly and integration processes.

The primary focus of this role will be assisting our team in a production ready separation assembly line by early 2027.

• 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)

• Bachelors 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.

• 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 weeks of paid time off to unplug, reset, and come back sharp
• Company Paid Holidays:
  Ten company paid holidays
• Medical: 100% employee covered and 80% of dependent coverage
• Dental & Vision: 90% employees and 80% for dependents to ensure you and your family have access to quality preventive and ongoing care
• FSA/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 alongside high‑impact, high‑velocity work
• Paid Parental Leave:
  Up to 10 weeks for birthing parents and up to 4 weeks for non‑birthing 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
• EV Charging:
  Onsite electric vehicle charging available for employees

• 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 50 lbs

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…