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 (Penrose)
🏢 Estes Industries
📍 Penrose