Castelion
Senior Mechanical Design Engineer (ACS Systems)
Rio Rancho, NM +3 · Senior · Full-time · Posted Sep 7, 2026
- Location
- Rio Rancho, NM
Torrance, CA
19951 Mariner Ave, Torance, CA 90503
2601 29th Ave NW, Rio Rancho, NM 87144 - Experience
- 5+ years.
- Education
- Bachelor's, Master's, or PhD in Mechanical Engineering or related field.
- Visa sponsorship
- Employment is contingent on the candidate’s ability to access applicable export-controlled information without additional export licensing. If the role requires classified access, employment may also depend on obtaining and maintaining required U.S. Government clearance or authorization and meeting applicable citizenship or other eligibility requirements.
About the job
Designs, analyzes, builds, and validates attitude control system hardware for long-range hypersonic vehicles, including propellant storage, flow control, and thrust-generation components.
What you'll do
- Design ACS hardware and lead detailed design and integration of pressure vessels, fluid lines, mounts, and assemblies.
- Perform structural, thermal, and fluid analyses; support hardware builds, testing, troubleshooting, and qualification.
- Collaborate across engineering and program teams, optimize designs, and mentor junior engineers.
What they ask for
- Bachelor's, Master's, or PhD in Mechanical Engineering or a related field.
- 5+ years of mechanical design experience in aerospace or high-performance fluid/propulsion systems.
- Background in pressure vessel design, fluid systems, high-pressure component integration, and tanks, valves, thrusters, or similar hardware.
- Experience with CAD and analysis tools, structural/thermal analysis, tolerance stack-up analysis, and hardware build, test, and troubleshooting.
Nice to have
- Familiarity with sealing methods, leak detection, and cleanliness requirements for high-reliability fluid systems.
- Familiarity with high-temperature materials and extreme environments.
Tools
NX, SolidWorks, ANSYS
Model-written summary · the original posting is authoritative