About Estes Industries
For more than 65 years, Estes Industries has been a leader in small solid-propellant rocket motors, with more than 500 million motors flown. Estes serves education, hobby, industrial, defense, and government customers from its operations in Penrose, Colorado.
About Estes Industries
For more than 65 years, Estes Industries has been a leader in small solid-propellant rocket motors, with more than 500 million motors flown. Estes serves education, hobby, industrial, defense, and government customers from its operations in Penrose, Colorado.
Position Summary
Estes Industries is seeking a
Senior Propulsion Engineer
to lead the design, analysis, development, testing, and qualification of solid rocket motors and related propulsion systems. This position combines hands-on engineering with technical leadership and ownership of projects from requirements through production and flight.
Key Responsibilities
Lead design, analysis, development, and qualification of solid rocket motors and propulsion components
Translate system and customer requirements into practical engineering solutions
Perform propulsion analyses and engineering trade studies to optimize performance, reliability, manufacturability, cost, and schedule
Develop test plans, support static-fire and qualification testing, analyze results, and document conclusions
Lead or support design reviews, failure investigations, root-cause analysis, and corrective actions
Support propulsion system development to applicable safety, performance, and customer requirements
Partner with manufacturing and quality to transition designs into production and resolve technical issues
Provide technical leadership and mentorship to engineers and technicians
Manage technical execution, risks, schedules, and engineering deliverables for assigned projects
Required Qualifications
B.S. in Mechanical Engineering,



Aerospace Engineering, or a related engineering discipline
7+ years of relevant engineering experience, or 5+ years with an M.S. in Mechanical Engineering, Aerospace Engineering, or a related discipline
Demonstrated experience with solid rocket propulsion or solid rocket motor development
Experience taking hardware through design, fabrication, testing, and evaluation
Robust engineering analysis, problem-solving, and technical documentation skills
Ability to independently lead complex technical work and communicate effectively across multidisciplinary teams
Must be eligible, as applicable to assigned duties, to possess or have access to explosive materials in accordance with federal explosives laws and regulations, including successful completion of required ATF employee-possessor requirements and background checks
Must comply with applicable federal, state, and local requirements governing energetic materials, explosives, hazardous materials, testing, storage, handling, and transportation, including applicable ATF, OSHA, and DOT requirements
Must follow Estes Industries safety, security, export-control, quality, and information-protection policies and procedures
Must be able to work safely in environments involving energetic materials, rocket motors, propulsion testing, and manufacturing operations and comply with required training, personal protective equipment, and site-safety procedures
Preferred Qualifications
Experience designing and developing solid rocket motors
Experience with internal ballistics, motor performance, grain design, thermal or structural analysis, or ignition systems
Experience with static-fire testing, qualification, failure investigation, and production transition
Familiarity with energetic materials, propellant processing, and rocket motor manufacturing
Experience leading technical reviews and mentoring engineers
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📌 Senior Propulsion Engineer (New South Wales)
🏢 Estes Industries
📍 New South Wales