Manufacturing & Tooling Engineer

Location: Onsite - Los Angeles, CA
Compensation: $90,000 - $110,000 annually (depending on experience)

About the Role

We’re looking for a manufacturing engineer who thrives on turning a repeatability problem into a physical design solution. This role is fundamentally about production: how something gets built the same way, to the same quality, every single time. You’ll spend the majority of your time designing, building, and refining the jigs, fixtures, and assembly aids that make that possible — mostly in-house, from concept through fabrication and validation on the line.

This is a hands-on, floor-facing role. You’ll work shoulder-to-shoulder with the people actually building our products, watching how a fixture performs in practice and iterating until it holds up. A smaller share of the job involves custom equipment that’s better built by an outside vendor — when that’s the case, you’ll own writing clear design and requirement specs so a vendor can quote and build accurately, and you’ll manage that relationship through delivery and acceptance.

You’ll also partner closely with our in-house QC team to define and enforce the process controls that keep assembly repeatable — work instructions, inspection criteria, and the kind of process discipline that matters in a regulated hardware environment. We’re looking for someone who’s comfortable moving quickly, solving problems with their hands, and staying curious about new tools and methods without needing a playbook handed to them.

Key Responsibilities

• Design, build, and iterate jigs, fixtures, and assembly aids in-house to support repeatable, high-quality assembly processes

• Own the full lifecycle of production tooling: concept, CAD design, fabrication/machining coordination, and validation on the production floor

• Identify where a fixture, jig, or piece of equipment could reduce variation, cycle time, or operator burden, and translate that into a working design

• For the smaller share of equipment sourced externally, author clear design and requirement specifications so vendors can accurately quote and build to spec

• Manage vendor relationships for outsourced custom equipment — sourcing, quoting, timeline tracking, and acceptance testing when equipment arrives

• Partner with the in-house QC team to define, document, and enforce process controls: work instructions, inspection criteria, and process capability

• Troubleshoot fixture and tooling issues on the floor, iterating designs based on operator feedback and real failure modes

• Support process validation activities for new fixtures and equipment introduced into production

• Maintain clear documentation and revision control on fixture and tooling drawings
  

Required Qualifications

• 2+ years of professional experience in a mechanical design, manufacturing, or tooling engineering role

• Strong mechanical design skills, with proficiency in CAD (SolidWorks) for jig, fixture, and tooling design

• Comfortable designing and building things yourself — machining, 3D printing, or hand-fabricating fixtures rather than staying purely on paper

• Working knowledge of design for manufacturability and assembly (DFM/DFA), tolerancing, and basic material selection for tooling

• Ability to take an ambiguous process problem and independently drive it to a working physical solution

• Experience writing clear technical specifications that an outside vendor can execute against

• Comfort managing vendor relationships — quotes, timelines, and technical reviews

• Experience (or strong interest in) partnering with quality/QC to define and hold process standards

• A bias toward being on the production floor solving problems in person, not just at a desk

Preferred Qualifications

• Experience in a regulated hardware environment (medical device, dental, or similar) where documentation and process repeatability matter

• Background in a high-mix or fast-evolving production environment where tooling needs change often

• Prior experience specifying and qualifying custom automation equipment from concept through installation

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?