Contract Polymer Engineer Jobs (NOW HIRING)

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 onsite - Monday - Friday
The base salary range for this position is $92,000- $137,000 per year. This range represents the Company's good faith estimate of the base compensation for this role at the time of posting. Actual compensation will be determined based on several factors, including but not limited to relevant experience, skills, qualifications, internal equity, and geographic location. In addition to base salary, this role may be eligible for annual incentive compensation and/or long-term incentives, subject to Company plans. The Company offers a comprehensive benefits package including medical, dental, vision, retirement, paid time off, and other benefits.
The BIG payoff
We are a company who is going to make a difference in the industries and the communities in which we choose to operate.
Every employee of Re:Build will share ownership in the company and will share in the financial rewards of the success we achieve together, at all levels of the company!
We want to work with people that reflect the communities in which we operate
Re:Build Manufacturing is proud to be an Equal Employment Opportunity and Affirmative Action employer. We do not discriminate based upon race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, veteran status, marital status, parental status, cultural background, organizational level, work styles, tenure and life experiences. Or for any other reason.
Re:Build is committed to providing reasonable accommodations for qualified individuals with disabilities in our job application procedures. If you need assistance or an accommodation due to a disability, you may contact us at accommodations.ta@ReBuildmanufacturing.com or you may call us at 617.909.6275.