> Markdown version of [/jobs/ext/3665235-design-engineer-prototyping-and-development](https://www.wearedevelopers.com/jobs/ext/3665235-design-engineer-prototyping-and-development). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Design Engineer (Prototyping and Development) - **Company:** ECM Selection Limited - **Location:** Cambridge, UK - **Salary:** £50,000.0 - **Contract:** Permanent contract - **Skills:** Computer-Aided Design, Systems Engineering - **Published:** October 10, 2026 - **Apply:** https://www.ecmselection.co.uk/register/27738 ## About the Role * Must be eligible for UK security clearance. Applicants needing sponsorship or on any work visa will not be considered. * Demonstrable R&D experience working in a cross-functional team delivering prototypes and new products. * Strong CAD experience underpinned through excellent theoretical engineering understanding. * Experience with additive manufacturing for prototyping. * Expected to have strong academic background including a 1st / 2.1 degree in mechanical, mechatronics or systems engineering from a top ranked university. This role is based fully onsite at both workshops and R&D facilities, so applicants should be able to drive and have their own vehicle to easily go between these locations (sited a few miles apart). Some additional travel may be required to go to manufacturing / assembly partners. This is an excellent opportunity for a mechanical or systems engineer looking to take that next step in their career and work in a dynamic, fast-paced environment on AI centric ideas and hardware products. Keywords: Mid-level / Experienced, Prototyping, Development Engineering, CAD, Multidisciplinary, Defence, Additive Manufacture, Greater Cambridge ## Description Join this growing defence start-up based in Cambridge who are looking for a Design Engineer. The position will be as part of their engineering team, working alongside senior engineers to take innovative concepts to prototype and develop them into deliverable hardware products for the defence sector. Day-to-day work will be hands-on, and require a strong understanding of engineering within a multidisciplinary environment (combining mechanical, electronics, software and physics).