Staff Mechanical Engineer - Electromechanical in London

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 reusable electromechanical assemblies at the heart of our robotic platform: the actuation modules, transmissions, structures and enclosures, and the integration of the motors, sensors and electronics within them. These assemblies must be precise, reliable over many procedures, and straightforward to build, test and service.

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, firmware, software, systems, quality and regulatory colleagues.

Key Responsibilities

• Design, develop and refine electromechanical assemblies, including actuation and transmission mechanisms, structural parts, enclosures, and the mechanical integration of motors, sensors, PCBs and cabling
• Own mechanical designs from early concept through prototyping, testing and production readiness
• Apply tolerance analysis and GD&T to precision mechanisms, balancing stiffness, backlash, wear, thermal behaviour and cost
• Make informed decisions on materials, finishes and manufacturing processes such as machining, sheet metal, casting and moulding
• Design for assembly, test and service through modular subassemblies, common parts, clear assembly sequences, and jigs and fixtures
• Work with electrical and firmware engineers on harness routing, grounding, shielding and thermal management
• Iterate quickly using 3D printing, laser cutting and CNC milling, and build and debug prototypes hands-on
• Plan and run characterisation, reliability and life testing, and lead root-cause analysis of mechanical failures
• Contribute to mechanical architecture decisions and support system-level trade-off analyses
• Produce and maintain build documentation, including drawings, bills of materials, and assembly and test instructions, and support pilot builds
• Support supplier and contract manufacturer engagement through to production
• 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, 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 experience designing and developing complex electromechanical systems, ideally in medical devices or robotics
• Strong mechanism design skills, including precision motion, actuators, transmissions and bearings
• Experience integrating motors, sensors, PCBs and cable harnesses into compact, serviceable assemblies
• Confident use of GD&T and tolerance stack-up analysis
• Solid understanding of materials and manufacturing processes, including CNC machining, sheet metal, injection moulding and scalable production techniques
• 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 mechanical systems for medical robotics or regulated medical devices
• Familiarity with the mechanical safety requirements of IEC 60601-1 for medical electrical equipment
• Exposure to design controls, risk management, and verification and validation activities under ISO 13485 and ISO 14971
• Experience with reliability engineering, including life testing, FMEA and root-cause analysis
• Experience designing for cleaning and disinfection, ingress protection and electromagnetic compatibility
• Working knowledge of structural and thermal simulation (FEA)
• Familiarity with suppliers, contract manufacturers, PDM/PLM tools 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