Bioelectric Mechanical Engineers

W I T H I N [ U ] is a neurotechnology company based in London, developing non-invasive light-based sensors, soundwave AI, and bioelectrical mapping to decode and optimise human health, awareness, and cognition. Our goal is to create real-time interfaces that interact directly with the body's native intelligence — transforming how we understand and interface with biological systems.

We are currently hiring five (5) to eight (8) Bioelectric Mechanical Engineers to join our existing BMEs and core hardware R&D team. Each engineer will specialise in a key aspect of our wearable biosensor systems — from mechanical housing and miniaturised form factors to signal optimisation and scalable light-based integration.

This role is ideal for engineers passionate about bridging biology and mechanical systems to pioneer the future of real-time neural interfaces and cognitive signal mapping. You’ll collaborate closely with AI researchers, biomedical engineers, and product leads to design high-fidelity devices that interface with the skin and yield meaningful physiological and cognitive data for AI-based health systems.

As part of our core neurotech team, you will be responsible for tasks related to mechanical engineering, machine design, computer-aided design (CAD), and sensor-focused research and development (R&D).

We are seeking highly skilled and imaginative Bioelectric Mechanical Engineers to further our development of advanced non-invasive biosensing hardware. These individuals will work at the intersection of mechanical engineering, biophysics, and sensor innovation — contributing to the next generation of wearable systems that decode neural and biological signals through light and bioelectric interaction.

You will collaborate with a multidisciplinary team to engineer scalable, ergonomic devices optimised for signal integrity, comfort, and precision — enabling real-time data capture for AI-driven health and cognition platforms. These five engineers will each lead a specialised subsystem of the platform, working alongside specialists who support the theoretical and signal-layer foundation through advanced work in biophysics and mathematics.

This role may involve travel to our additional R&D sites to collaborate on extended laboratory development and platform refinement.

• Design and prototype wearable bioelectric and light-based sensors using precision mechanical and materials engineering.
• Apply CAD tools to develop mechanical systems optimised for comfort, signal accuracy, and durability.
• Collaborate with electrical and biomedical engineers to integrate mechanical housing with optoelectronic and signal processing components.
• Conduct research, testing, and refinement of skin-contact sensor interfaces.
• Manage R&D cycles, including documentation, iteration, and alignment with regulatory and manufacturing requirements.

• Proven experience in Mechanical Engineering and Machine Design, ideally for wearables or biointerfaces.
• Proficiency in Computer-Aided Design (CAD) tools such as SolidWorks, Fusion 360, or equivalent.
• Strong background in materials selection for bio-compatible and skin-contact applications.
• Experience with R&D processes, including prototype-to-production transition.
• Bachelor’s or Master’s degree in Mechanical Engineering, Biomedical Engineering, or a related field.
• Experience or deep interest in bioelectric systems, biomedical sensors, or bioelectronics is a strong plus.
• Comfortable working in a fast-paced, research-oriented environment with cross-functional teams.

• Embedded Systems Engineers – Real-time firmware and sensor integration
• Biomedical Signal Processing Engineers – Signal filtering and data transformation
• Sr. Neural Data Scientists – Mapping cognitive and conscious states from biosignals
• Product Systems Integrator – Leading full-stack prototyping across hardware and AI