About this role
Prototype Engineer - Optical Systems AddOptics Posted on Aug 27, 2026 Own the Build. Solve the Real Problems. Location : Rotterdam, NL Commitment : Full time Experience : 3+ years Some engineers like to stay in the design phase. You're not one of them. At AddOptics, we work with R&D and product development teams from some of the most innovative companies in eyewear, consumer electronics, and critical technologies. They come to us with a device concept and a lens design - and they need to know if it works before they commit to production. That's where you come in. As a Prototype Engineer, you own the full journey from feasibility to delivered prototype. You dig into the technical challenges, figure out what's buildable, and find the solutions that make a concept real. You'll work directly with our customers' engineers and be the technical backbone of the projects you run. What You'll Be Working On - Assessing the technical feasibility and manufacturability of customer lens designs - understanding what works, what doesn't, and why - Owning prototype projects end to end: from first technical review through PoC, iteration, and final prototype delivery - Working hands-on with optical components, assemblies, and integration challenges - figuring out how lenses interact with the customer's broader device - Identifying and solving manufacturing constraints early, before they become expensive problems downstream - Running structured iterations based on customer test feedback - adapting quickly without losing engineering rigour - Setting up and applying measurement and verification methods to validate prototype performance - Being the technical point of contact for our customer's engineering team throughout the project What We're Looking For - 3-7 years of hands-on experience in prototype engineering, product development, or precision manufacturing - A solid understanding of optical and mechanical systems - you know how componen...