Job Title: R&D Engineer II-III

Location: Cambridge

Type: Full-Time (on-site)

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Coherence Neuro is a fast-growing, venture-backed company pioneering implantable technologies that interface with the human body to address critical unmet medical needs. We're looking for driven individuals who are passionate about pushing the boundaries of engineering and science to solve some of the most complex biological challenges. In this early-stage environment, we seek versatile team members with a hands-on approach and a willingness to learn quickly and adapt. We value diversity and encourage applicants from all backgrounds to join us in our mission. Learn about our team here!

We are building a robust translational research pipeline and looking for a detail-orientated and ambitious Research and Development Engineer II-III who is excited to contribute to the research and development of novel medical devices targeting the nervous system.

The successful candidate will work closely with our surgical and data scientists across our preclinical research team to deliver implantable hardware. You must be comfortable in a fast-paced start-up environment where requirements and designs evolve rapidly. We are seeking someone with prior experience designing electronic hardware for low-power miniaturised applications, who is also able to support mechanical prototyping of our preclinical hardware.

Key Responsibilities

• Design and implement implant–system interface boards, including micro-connectors, flex PCB adapters, custom headstages, breakouts, adapter boards, and tethered/wireless interposers.
• Design and validate PCB assemblies for neural stimulation, including programmable drivers, charge-balancing circuits, compliance voltage management, and stimulation-safe protection networks
• Prototype, assemble, and bring up multi-layer PCBs, perform schematic capture, layout review, component selection, soldering/rework, and hardware verification.
• Develop hardware test plans and run board-level characterisation using oscilloscopes, function generators, impedance analysers, and specialised neurotech instrumentation.
• Build and refine full hardware prototypes, including PCB assembly and mechanical components.
• Develop and test mechanical prototypes using rapid-prototyping methods (3D printing, laser cutting, basic machining), working collaboratively with surgical collaborators on implant form factors and fixtures.
• Work with external fabrication partners, PCB manufacturers, and component suppliers.
• Develop and maintain benchtop test setups, jigs, and automated test rigs for device characterisation.
• Conduct root-cause analysis of device failures (electrical, mechanical, packaging, or interface-related) and implement design improvements.
• Maintain well-organized and detailed design records and documentation.
• Contribute to cross-functional projects alongside data scientists, preclinical researchers, and other engineers.

Required Qualifications and Skills