You'll design the production tooling, fixtures, and processing aids that support aerospace manufacturing across multiple product families — machining, assembly, test, and inspection — working from concepts, sketches, models, or verbal input from engineering, manufacturing, quality, and production. Mechanical Design Engineer — Production Tooling, Fixtures & NPI Support — $125k to $165k Base + Bonus — Santa Ana, CA / Onsite — Nationally Recognized Aerospace, Space & Defense Company .