Flight Hardware Mechanical Engineer

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

Job summary

Castelion is seeking a hands-on Mechanical Engineer to own the design, fabrication, and integration of critical flight structures for hypersonic vehicles. You will contribute to CAD models, run basic analysis, and work with technicians to bring hardware from concept to flight in weeks, not years.

This role requires a Bachelor’s in Mechanical Engineering and 2+ years in aerospace or hardware-focused industries.

Qualifications

• Bachelor's degree in Mechanical Engineering with 2+ years of professional ME experience, preferably in aerospace, automotive, or hardware-focused industries.
• CAD design of mechanical components (e.g., SolidWorks, NX, or similar); understanding of statics, dynamics, and thermal principles
• Ownership Mentality: Eager to take on responsibility, contribute in a hands-on environment, and learn from experience
• Attention to Detail: Thoughtful about part numbers, materials, tolerances, and documentation-even when moving quickly

Responsibilities

• Design and Develop Flight Hardware: Support the design, analysis, and build of mission-critical systems including composite tanks, separation mechanisms, and actuators. You'll contribute to CAD models, run basic analysis, and work with technicians and leads to integrate and test hardware.
• Rapid Iteration and Prototyping: Contribute to four-week subsystem prototype cycles. Participate in design reviews, integrate test feedback, and help drive continuous improvement based on real-world data.
• Get Hands-On and Learn Fast: Work closely with leads and technicians during builds. Learn how to write travelers, build notes, and quality documentation. Gain exposure to the full product lifecycle in a highly accelerated environment.

Skills

CAD design

Statics & dynamics

Thermal principles

Ownership mentality

Attention to detail

Education

Bachelor's degree in Mechanical Engineering

Tools

SolidWorks

NX

Job description

Castelion is seeking a hands-on Mechanical Engineer to own the design, fabrication, and integration of critical flight structures for hypersonic vehicles. You will contribute to CAD models, run basic analysis, and work with technicians to bring hardware from concept to flight in weeks, not years.

This role requires a Bachelor’s in Mechanical Engineering and 2+ years in aerospace or hardware-focused industries.