Mechanical Design Engineer – Medical Devices
(Cambridge / Hybrid)
£35,000 – £45,000 | Cambridge (Hybrid) | Permanent
Why join us?
- Work on cutting-edge UVC medical devices with real-world impact
- Be part of a fast-growing, hands-on team where your work truly matters
- Gain exposure across the full product lifecycle — not just one small piece
About Photon Therapeutics
Photon Therapeutics is developing next-generation ultraviolet (UVC) light-based medical devices, with applications across human and veterinary healthcare. We are a small, fast-paced team combining science, engineering, and regulatory rigour to bring innovative and safe therapeutic devices to market.
The Role
We’re looking for a proactive and skilled Mechanical Design Engineer with project coordination experience to assist in the development, testing, and production of our devices.
This is a hands-on role where you’ll work closely with the Head of Engineering and the wider team, contributing across the full product lifecycle — from concept and prototyping to verification, production, and support.
Key Responsibilities
- Create and maintain engineering documentation (DHF, BOMs, assembly design specifications)
- Support coordination of multiple development projects
- Carry out verification, validation, and reliability testing
- Implement design improvements based on testing and production feedback
- Work with production teams to resolve engineering challenges
- Design production and test jigs for repeatable manufacturing
- Support compliance with ISO 13485, IEC 60601-1, and ISO 14971
- Maintain clear, structured, and traceable documentation
What We’re Looking For – Essential
- 3+ years in mechanical design engineering within a regulated industry (medical devices preferred)
- Bachelor’s degree in design engineering, Mechanical Engineering, Mechatronics Engineering or related field
- Proficient in 3D CAD (Solidworks, Onshape, or equivalent)
- Experience with prototyping, verification testing, and supporting low-volume production
- Familiarity with design control, risk management, and technical documentation under ISO 13485
- Working knowledge of IEC 60601-1 and other relevant safety standards
- Strong written and verbal communication skills
- Organised, self-directed, and comfortable working in a collaborative team environment
Desirable
- Experience with electro-mechanical medical devices
- Understanding of UV safety and optical system design considerations
- Exposure to ClickUp or similar task/project management platforms
- Hands-on experience with small-scale manufacturing
- Involvement in verification planning or risk documentation (e.g. FMEA)
What You’ll Get
- Flexible hybrid working
- Hands-on role with real ownership
- Work on innovative medical technologies
- Supportive team environment
- Opportunities for growth
- 25 days annual holiday plus bank holidays
- Pension scheme
Interested?
Apply now or get in touch to find out more. Sarah@photon-therapeutics.com
