Mechanical Engineer

Castelion Corporation•Torrance, CA

54d

About The Position

Castelion is seeking a hands-on, high-agency Mechanical Engineer excited to take ownership of real flight hardware and grow alongside a fast-moving team. You will work on the design, fabrication, and integration of critical flight structures and mechanisms across Castelion's hypersonic vehicles. This role is ideal for someone who thrives in fast-paced environments, learns quickly, and wants to see their work go from concept to flight in weeks-not years. You'll be empowered to take on meaningful responsibilities immediately. This is a rare opportunity to grow as a full-stack engineer while working on hardware that matters.

Requirements

Bachelors 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
Eager to take on responsibility, contribute in a hands-on environment, and learn from experience
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.