Lead Propulsion Engineer, Rocket Motor Soft Goods

STEM Boomerang; Rio Rancho (NM); On-site; USD 140,000 - 210,000; Full time

Benefits offered by this job

Equity for employees

PTO 4 weeks

Medical insurance 100%

Dental & Vision coverage

401k retirement plan

Parental leave

Meals provided

Snacks & beverages

Fitness stipend

EV charging onsite

Job summary

Castelion in Rio Rancho, NM is seeking a Senior Propulsion Engineer to design and deliver rocket motor soft goods for long‑range hypersonic strike vehicles. You will work hands‑on with multidisciplinary teams to design, analyze, build, and validate soft goods systems in a fast‑paced, hardware‑driven environment.

Candidates should have 5+ years in rocket propulsion, a degree in aerospace/mechanical/materials, and strong experience with insulation, liners, bonding, and high‑temperature materials.

Qualifications

• 5+ years in rocket propulsion or high‑temperature material systems with focus on soft goods or internal motor components.
• Strong background in insulation materials, liners, and bonding systems in solid rocket motors.
• Experience with thermal protection materials under high heat flux and pressure.
• Familiarity with propellant compatibility and chemical interactions with soft goods materials.
• Material processing for elastomers, ablatives, or composite insulation systems.
• Proficiency in MATLAB, ANSYS, or equivalent.
• Experience with propulsion testing, data analysis, and failure investigation.
• Problem‑solving mindset in a fast‑paced hardware‑rich environment.

Skills

Aerospace Engineering

Propulsion

Thermal Protection

Materials Science

MATLAB

ANSYS

Data Analysis

Education

Bachelors/Masters/PhD in Aerospace/Mechanical/Materials

Tools

MATLAB

ANSYS

Job description

Castelion in Rio Rancho, NM is seeking a Senior Propulsion Engineer to design and deliver rocket motor soft goods for long‑range hypersonic strike vehicles. You will work hands‑on with multidisciplinary teams to design, analyze, build, and validate soft goods systems in a fast‑paced, hardware‑driven environment.

Candidates should have 5+ years in rocket propulsion, a degree in aerospace/mechanical/materials, and strong experience with insulation, liners, bonding, and high‑temperature materials.