R&D Engineer

Location: Huntington Beach, CA
Compensation: $90,000 – $105,000 annually (depending on experience)

About the Role

SprintRay is redefining digital dentistry by offering the industry's only complete 3D printing solution, seamlessly integrating cutting-edge technology, advanced materials, clinical education, and dedicated customer support throughout the customer journey. As an R&D Engineer, Materials, you will play a hands-on role in developing, testing, and scaling advanced photopolymer resins that power SprintRay's 3D printing ecosystem. Working closely with scientists, engineers, and manufacturing teams, you'll help bring next-generation dental materials from concept to production through laboratory experimentation, data-driven problem solving, and cross-functional collaboration. This is a fully on-site role ideal for someone with a passion for materials science, innovation, and delivering high-quality solutions for digital dentistry.

Key Responsibilities

• Conduct research to develop new 3D printing resins and photopolymerization formulations for digital dentistry.

• Manufacture, characterize, and test polymer resins to define requirements for next-generation dental products.

• Scale up R&D formulations and provide continuous support to resin production and manufacturability improvements.

• Optimize resin settings and establish materials standards to meet quality, usability, and print consistency requirements.

• Prepares R&D documentation and reports by collecting, analyzing, and summarizing information.

• Maintain the cleanliness and organization in workshop area.

• Follow safety rules and procedures constantly.

• Collect data and perform statistical analysis on user experience to drive product features and reliability improvements.

• Monitor top product failure modes and provide manufacturing knowledge to QA to reduce production costs.

• Maintain a functional Mechanical workshop and maintain inventory level of the R&D department.

Required Qualifications

• Bachelor's degree in Materials Science, Chemical Engineering, Manufacturing Engineering, or a related discipline (or equivalent practical experience).

• 3+ years of experience developing, manufacturing, characterizing, and testing polymer or photopolymer resin systems.

• Strong understanding of photopolymerization chemistry, resin formulations, and additive technologies.

• Hands-on experience with materials characterization, laboratory testing, and experimental design.

• Proficiency in collecting, analyzing, and interpreting experimental data to support technical decisions.

• Knowledge of polymer and materials science principles, including structure-property relationships.

• Familiarity with dental materials, additive manufacturing, or medical device products is preferred.

• Experience supporting process development, optimization, and continuous improvement initiatives.

• Strong analytical and problem-solving skills with a methodical, data-driven approach.

• Excellent organizational and time management skills, with the ability to manage multiple priorities.

• Exceptional attention to detail and commitment to producing high-quality, accurate work.

• Strong written and verbal communication skills, with the ability to document findings and collaborate effectively across cross-functional teams.

• Demonstrated ability to work both independently and collaboratively in a fast-paced R&D environment.

Employment Type

Full-time

About SprintRay

SprintRay is rewriting the rules of dentistry with technology that’s smart, fast, and designed to make life easier for dental professionals. Since 2014, we’ve been on a mission to deliver the most advanced 3D printing solutions in the industry—combining hardware, software, and materials into one seamless ecosystem.

But what really makes SprintRay different is our people. We’re a bold, global team of innovators, problem-solvers, and doers who thrive on pushing boundaries and challenging the status quo. Every product we create is driven by a simple goal: help dentists spend less time on repetitive tasks and more time changing patients’ lives.

Our culture is entrepreneurial, collaborative, and fueled by curiosity. We celebrate diverse perspectives and believe the best ideas can come from anywhere. Whether we’re building next-generation AI tools, designing new materials, or supporting our customers on the front lines, we’re united by the same passion—transforming digital dentistry and having fun while we do it.

At SprintRay, the future of dentistry is being printed today. Want to be part of it?