Mechanical Engineer II

Mechanical Engineer II

Location:

Los Angeles, CA (Onsite)
Compensation: $95,000-$120,000k (depending on experience)

As a Mechanical Engineer II within Sprint Ray’s Hardware R&D team, you will drive all phases of a project from concept to manufacturing to end of life. You will apply advanced mechanical engineering principles to develop new architectures, design prototypes, evaluate system feasibility, design for manufacture, and establish quality standards. This role contributes directly to the technical foundation of future Sprint Ray products by transforming conceptual ideas into experimentally supported engineering insights.

You will collaborate closely with mechanical, electrical, firmware, and process engineering teams to establish research hypotheses, design experiments, build and test prototypes, analyze data, and generate engineering recommendations. Your work will help define the pathways from exploratory concepts into robust product-level designs.

• Conduct research investigations in mechanical systems, electromechanical architectures, and process workflows for future hardware platforms.
• Generate and evaluate proof-of-concept mechanisms, structures, and subsystems through CAD design, simulation, prototyping, and experimental validation.
• Design and execute experiments using scientific methods, including test planning, statistical analysis, modeling, and interpretation of results.
• Collaborate with cross-functional engineering teams to transition research findings into engineering requirements and early product architectures.
• Develop prototype jigs, fixtures, and test equipment to characterize performance, reliability, and process behavior.
• Document results through technical reports, presentations, and engineering specifications.
• Identify risks, unknowns, and dependencies associated with new concepts; propose mitigation strategies and alternative solutions.
• Design for Manufacture and Assembly.

• 2 years of product development experience, leading a whole product or subsystem to market.
• Experience designing and building prototypes.
• Strong experiment design methodology.
• Experience with electrical systems.
• Strong CAD skills (Solidworks preferred).
• Simulation Experience (FEA and or CFD).

• Experience with resin 3D printing, automated mechanisms, or precision motion systems.
• Familiarity with firmware/hardware integration and system-level architecture.
• Microcontroller programming.

Full-time, Onsite

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

Sprint Ray is proud to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, veteran, or disability status.

Without a written agreement signed by an officer of Sprint Ray: a) Sprint Ray does not accept resumes from recruiting agencies, headhunters, or any other party expecting payment in the event Sprint Ray speaks with or hires a candidate from such submitted resume; b) Sprint Ray is not responsible for any fees related to unsolicited resumes or related Terms of Service, and c) Unsolicited resumes received will be considered the property of Sprint Ray and will be processed accordingly.

If you need a reasonable accommodation during the application or interview process, please contact us at