Senior Manufacturing Engineer

Company: Castelion
Location: Torrance CA or Rio Rancho NM (in office 5 days per week)
Compensation: $160000 - $200000 competitive equity
Employment Type: Full-time
Visa Sponsorship: Not available (US citizens and green card holders)

Castelion is a modern defense production company building long-range hypersonic strike systems to close a critical national security gap. Founded in 2021 under a philosophy of peace through deterrence it is one of the few hypersonics companies to move beyond concepts to production with active government contracts including a $23M Navy order for 50 units delivering in 2027.

Castelion has raised $1B through its Series C.

Castelion is hiring Senior Manufacturing Engineers (5 years) to own and scale production of critical components for long-range hypersonic strike a 0-to-1 manufacturing environment you will drive the transition from prototype to scalable production of thousands of units a year. Castelion needs people who have built and scaled manufacturing capacity not just sustained it.

• Own a critical subsystem or component and drive its manufacturing: defining processes building capacity and improving reliability and efficiency.
• Develop and scale production processes for complex hardware (composites solid rocket motors bonding/epoxy machined components or specialty materials).
• Turn development-stage manufacturing into production-ready assembly lines.
• Write and refine build instructions test procedures safety standards and mBOMs.
• Partner with design engineers on DFM and secure the resources to hit production deliverables.

• 5 years of manufacturing engineering experience
• A record of building and scaling manufacturing capacity for complex hardware
• Experience with composites energetics bonding machining or specialty materials processing
• NX Teamcenter or similar CAD/PDM tools
• US citizenship or green card (defense work)
• Ability to work on-site 5 days a week in Torrance CA or Rio Rancho NM

NX Teamcenter CAD/PDM

REVENUE: 17% of first-year salary. Est. fee per hire $27K-$34K; 6 seat(s) up to $184K if all filled.

TARGET COMPANIES (suggested): SpaceX Anduril Northrop Grumman Lockheed Martin Raytheon (RTX) Aerojet Rocketdyne (L3Harris).

BEST-FIT CANDIDATE: 5 yrs; scaled mfg capacity (not sustaining); complex hardware processes; visa: NO sponsorship (defense); location: Torrance CA or Rio Rancho NM.