What you’ll be doingIn short: designing the things that make the thing work.You’ll be part of a small but mighty mechanical engineering team, working alongside other engineers, scientists, firmware developers, and product managers. Your job is to design the product, and build the jigs, fixtures, and subsystems that bring our platform to life.This is a hands-on role. You’ll be deep in CAD one day, on the bench troubleshooting an electro-mechanical prototype the next. You’re not expected to be the “blue-sky concept” person, but you’ll work closely with those who are. Your superpower is turning big (and sometimes vague) ideas into robust, elegant designs.Expect to:Design jigs, test rigs, and subsystems to support product development and verificationDevelop full mechanical designs in SolidWorks (this is your second language)Specify parts for manufacturability, durability, and performanceApply tolerance analysis and dimensioning (ideally using GD&T)Assemble, iterate, and troubleshoot mechanical and electro-mechanical assembliesCollaborate with cross-functional teams on systems involving thermal, fluidic, and motion controlEngage in design reviews, test planning, and real-world problem solvingIn 2025, you’ll help optimise and refine our existing system. In 2026, you’ll be starting fresh, helping us define and deliver the next-generation platform.What we’re looking forYou’re not just a good designer, you’re a good collaborator. You know how to talk to scientists, biologists, and less-technical colleagues without making them feel like they’re speaking a different language.We’d love to hear from you if you have:A strong portfolio of product/test rig/jig designs (and the stories behind them)Deep CAD experience, ideally SolidWorks, with a focus on real-world, manufacturable solutionsKnowledge of materials, tolerances, and how to design for robustness and repeatabilityHands on prototyping and assembly experience (you’re the person who builds the thing you design)Familiarity with electromechanical, thermal, or fluidic systemsConfidence working in a multidisciplinary team with varied skillsets and communication stylesExperience working alongside “big idea” people, and grounding those ideas in practical designBonus points if you’ve worked in ISO13485 environments or helped take a product from lab prototype to scaled manufacture.LEX Diagnostics is scaling fast, with major investment, an FDA submission in motion, and big plans for 2026. We\'re still small enough for everyone to have a voice, but big enough to do serious engineering. Your work will have a direct impact on our next chapter.BenefitsHere’s what you’ll get:Competitive salary based on experience10% employer pension contribution (+3% from you)Private medical insuranceLife insurance25 days’ holiday + bank holidaysAutonomy, support, and the right tools for the jobA collaborative, ego-free team who enjoy solving hard problems togetherWant to help shape both the product, and the future of a next-gen diagnostics platform?Click apply. Or let’s talk. We’re happy to show you what we’re building. #J-18808-Ljbffr