Staff Mechanical Engineer - Sterile Disposables

Machnet Medical Robotics (MMR), founded in 2020, is on a mission to revolutionise medical robotics. Our guiding principle is simple: innovation must improve patient outcomes, support clinicians without disrupting their workflows, and empower healthcare staff rather than add to their burden. MMR is well funded, with long-term investors and a strong financial foundation. Our hardware and software teams have developed a fully functional medical robotic platform that has successfully completed animal trials. We are now refining the mechanical design for production, with a focus on safety, reliability, manufacturability and scalability, as we prepare our technology for deployment in hospitals worldwide. About the Role We are seeking a Staff Mechanical Engineer to own the design and industrialisation of the sterile, single-use components of our robotic platform. These are the parts clinicians load, handle and discard in every procedure, and they form the interface between the robot and interventional devices such as catheters and guidewires. They must be intuitive to use, safe, and economical to produce at volume. Based in central London, you will hold a senior, hands-on technical position. You will take designs from concept through prototyping, verification and transfer to manufacture, working closely with electrical, software, systems, clinical, quality and regulatory colleagues. Key Responsibilities Design, develop and refine sterile single-use components and assemblies, including the mechanical interfaces between the disposables, the reusable robot and the sterile barrier Own disposable designs from early concept through prototyping, testing and production readiness Design for high-volume manufacture, covering injection-moulded parts and joining methods such as snap fits, ultrasonic welding, adhesive bonding and overmoulding Select materials with biocompatibility, sterilisation compatibility, shelf life, performance and cost in mind Define tolerances and carry out stack-up analyses across moulded parts and robot-to-disposable interfaces Iterate quickly using 3D printing, prototype tooling and machined parts, and build test fixtures to characterise device grip, friction and loading forces Work with clinical and usability colleagues so that setup, loading and device exchange are fast, intuitive and error-resistant for gloved users in a sterile field Contribute to the packaging, sterilisation and shelf-life strategy with quality, regulatory and external partners Engage with moulders, toolmakers and contract manufacturers on design for manufacture and assembly, tooling reviews, first-article inspection and process validation Reduce part count and unit cost without compromising safety or performance Establish and follow engineering best practices, documentation standards and design controls, and contribute to risk management activities Mentor and provide technical guidance to junior and mid-level engineers Drive continuous improvement of existing designs based on testing, user feedback and field learnings Who We're Looking For Bachelor's or Master's degree in Mechanical Engineering or a related field 6+ years of mechanical design experience, including significant work on single-use medical devices or comparable high-volume plastic products Strong plastic part design skills and a solid understanding of injection moulding, including tooling, draft, shrinkage and gating considerations Solid understanding of materials, tolerances and scalable assembly processes Hands-on experience with rapid prototyping methods such as 3D printing, laser cutting and CNC machining Proficiency in parametric CAD tools such as SolidWorks Proven ability to take ownership of designs and deliver them from concept to production Comfortable working in a fast-paced, collaborative startup environment Eligibility to work on-site at our central London office Experience We Value Experience developing sterile disposables for robotic, catheter-based or other interventional systems Knowledge of sterilisation methods (such as ethylene oxide, gamma and e-beam) and their effects on materials and packaging Familiarity with biocompatibility evaluation (ISO 10993) and sterile barrier packaging (ISO 11607) Exposure to design controls, risk management, and verification and validation activities under ISO 13485 and ISO 14971 Experience applying usability engineering (IEC 62366) to devices handled by clinical users Familiarity with cleanroom assembly, contract manufacturers, process validation (IQ/OQ/PQ) and production ramp-up Startup experience or comfort working across disciplines and shifting priorities Experience contributing to patents or protecting mechanical intellectual property Why Join Us? At MMR, you will work at the intersection of robotics, AI and healthcare, building technology that directly affects patient care and clinical outcomes. You will join a mission-driven, collaborative team where your technical expertise will shape the future of medical robotics. We believe technology must serve people responsibly. Human-centred innovation, integrity and long-term responsibility guide how we design our products and how we support our team members' growth and well-being. What We Offer An international, interdisciplinary team based in central London and Zwolle, Netherlands A key technical role in a rapidly growing medical device startup with global ambitions A central London office with a well-equipped prototyping space Ongoing professional development through training, workshops and conferences An inclusive, supportive workplace culture A competitive salary package aligned with industry standards