Research and Development Composites Molding Engineer
Rebuildmanufacturing · Commerce City, CO · Posted Jul 7, 2026
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About Re:Build Manufacturing Oribi
Oribi Manufacturing, LLC (Oribi) located in Denver, CO, is a leader in the development and production of advanced thermoplastic composites. We utilize automation, robotics, and advanced materials to produce advanced composite parts for a wide range of industries, including sporting goods, defense, wind energy, automotive, marine, and others.
Re:Build Manufacturing is a growing family of industrial and engineering businesses combining enabling technologies, operational superiority, and strategic M A to build America’s next generation industrial company. At Re:Build we deploy deep expertise in engineering, operations management, and technology to supercharge the performance of our member companies. We leverage deep professional expertise and a candid, principled operating culture to drive differentiated outcomes. Ours is a fast-paced environment where individuals can stretch and be challenged to pursue their fullest potential.
Re:Build was founded to pioneer a profitable model for the revitalization of US manufacturing. We’ve assembled a powerful set of complimentary capabilities and lines of business that enable us to pursue a wide range of end markets. Our acquired businesses are grounded in build-to-print and by-the-hour engineering and design services, and we’re leveraging their combined expertise to migrate to increasingly sophisticated program development and production, as well as the generation of our own products. Our unique set of capabilities lend themselves to highly complex systems and products, and we offer customers a range of services including product and systems design, automation, fabrication, assembly, and large volume contract manufacturing. Our customers span a wide array of industries including aerospace, defense, mobility, healthcare, pharma, biotech, clean tech, chemicals, energy, lifestyle, food production, and industrial equipment.
Who we are looking for
Re:Build Manufacturing is seeking a highly skilled R D Composites Molding Engineer to lead research and development of advanced thermoplastic molding processes, tooling technologies, and prototype equipment for our manufacturing operations. This hands-on role emphasizes developing new molding processes, designing prototype tooling, and testing emerging technologies while working directly with molds, molding equipment, and R D teams. You will independently manage multiple R D projects from concept through prototype validation, supporting Re:Build's diverse manufacturing capabilities across multiple sites. The ideal candidate is an experienced engineer who combines strong technical knowledge with a hands-on approach to solving complex R D challenges and advancing manufacturing capabilities.
What you will get to do!
Develop and advance thermoplastic molding processes for R D applications
Design prototype tooling and molds using SolidWorks
Research and evaluate new tooling technologies and molding methods
Provide hands-on support during prototype builds, troubleshooting molds and molding equipment
Lead new process development and qualification activities
Manage multiple concurrent R D composites projects independently
Test and validate prototype tooling and process parameters
Collaborate with engineering and technical staff across Re:Build sites
Coordinate with external vendors and suppliers for materials, tooling, and services
Document R D processes, test results, specifications, and best practices
What you bring to the team
Bachelor's degree in Mechanical Engineering, Materials Engineering, Plastics Engineering, or related engineering discipline
5+ years of thermoplastic processing experience (thermoforming, injection molding, compression molding, or thermoplastic composites)
Proficiency in SolidWorks for 3D modeling and tooling design
Hands-on experience working with molds and molding equipment
Strong understanding of thermoplastic materials and processing parameters
Process development and prototyping experience
Tooling design and modification experience
Ability to troubleshoot complex process and equipment issues
Experience managing multiple projects independently
Strong problem-solving and communication skills
Preferred Qualifications
10+ years of thermoplastic processing experience
Experience with multiple thermoplastic processes (thermoforming, injection molding, compression molding, thermoplastic composites)
Prototype mold design experience
Material science or polymer engineering background
Experience in R D or advanced manufacturing environments
FEA or simulation analysis experience
Experience with emerging composites technologies
Work Environment
Primarily based at Re:Build's Denver facility
Mix of office/engineering environment and hands-on R D lab/shop floor work
Active participation during prototype builds and testing
Occasional travel to other Re:Build sites or suppliers
Standard day shift, Monday through Friday
Additional Details
Work Week is …