Research Development Mechanical Engineer

Research Development Mechanical EngineerJoin to apply for the Research Development Mechanical Engineer role at InSpekInSpek develops optical microchip sensors capable of measuring multiple molecules, temperature, acidity, oxygenation, and more—directly at the heart of biochemical reactions. Our technology enables smarter production of medicines, food, and energy while minimizing waste. We are a VC‑backed, ambitious team pushing the boundaries of what sensors can achieve.If you thrive in a dynamic, innovative environment and want to shape the future of sensing technology, InSpek is the place for youWHAT WILL YOU BE DOINGWe are seeking an R&D Mechanical Engineer to develop the mechanical part of InSpek’s sensing systems. You will work on design, prototyping and manufacturing of optical assemblies involving our chip‑scale sensors, OEM components and custom‑made parts. Your work will ensure the mechanical and manufacturing readiness of components, from R&D tools to production‑grade assemblies. Your role will be hands‑on and collaborative, working closely with internal teams and external partners to debug, prototype and manufacture next‑generation sensing solutions. You will report to the Industrialisation lead.RESPONSIBILITIESDesign and iterate mechanical components and assemblies that meet cleanliness, sterility and durability standards for bioproduction environments.Build and iterate prototypes using 3D printing, CNC machining and other rapid prototyping methods.Conduct tests to validate performance and durability in real‑world bioproduction conditions.Collaborate with internal teams and external partners to debug and refine mechanical designs.Optimize designs for cost, scalability, ease of assembly and compliance with biotech requirements.Identify, qualify and onboard subcontractors and engineering houses for specialised mechanical tasks.Work with CMOs, contractors and industrialisation partners to ensure mechanical components meet technical and quality standards.Contribute to procurement, timeline management and technical documentation.Ensure smooth transitions from prototyping to volume production.QUALITY & COMPLIANCEPerform mechanical testing and validation to ensure components meet performance and regulatory requirements.Support quality control processes, with an emphasis on compatibility with bioproduction and pharmaceutical standards.COMPETENCIES / PROFILYou are a hands‑on engineer with experience in mechanical design and manufacturing processes. You can manage suppliers, solve technical challenges quickly and contribute to robust sensor development.4+ years of experience (or equivalent) in mechanical engineering or industrial design, industrialisation.Strong background in mechanics, system design and integration, including proficiency with CAD tools and mechanical prototyping (e.g. 3D printing).Hands‑on experience with mechanical component selection, testing and validation.Familiarity with hazardous environments such as bioproduction (preferred), space and sub‑sea.Experience with cleanroom, sterilisation, material compatibility and radiation.Experience with supplier follow‑up and project management.Excellent communication and project management skills.Ability to manage multiple stakeholders and prioritise tasks in a fast‑paced environment.Fluency in English; French is a plus.Nice‑to‑have: Knowledge of optoelectronic packaging or microfabrication.Familiarity with ISO standards.BENEFITSHealth and life insurance (100%).Gymlib account (access to gyms & sports).Employee stock options (BSPCE).Growth opportunities with potential for leadership roles.Unique opportunity to be an early employee at an innovative startup.InSpek’s offices & laboratories are located at DocCity Suresnes, in the western Paris region.We welcome candidates from all backgrounds and experiences to apply, even if you don’t tick all the requirements.Seniority levelAssociateEmployment typeFull‑timeJob functionResearch #J-18808-Ljbffr