MedTech · IP for sale
Resist — Rehabilitation Device
A full-body resistance device using powerful magnets for knee rehabilitation. Designed, built, and patented. The IP is currently available for licensing.
Read more →Chartered Mechanical Engineer · MEng · CEng-MIMechE
Duncan Cornes
Senior Mechanical and Systems Engineer with 12 years across Aerospace, E-mobility, and Climate Tech. Specialising in design and systems integration.
Design Requirement Capture - Concept - CAD - Simulation
Production Prototyping - Design for Manufacture - Supply chain
Corporate Rolls-Royce graduate to Senior Design Engineer
Start-up Growing small teams and launching products
Featured projects
A few things I'm proud of — from concept to reality.
EV · Battery design
Ampersand — EV Battery Pack
A 75V, 4.5kWh battery pack for electric motorbike taxis in Rwanda. Designed end-to-end and production established in-country.
Read more → Impact Tech · Software
Klimokio — Carbon Footprint App
A full-stack web app that uses AI to turn plain-language lifestyle descriptions into rigorous, multi-indicator environmental impact data. Live at klimokio.com.
Read more →
Commercial Aerospace
Rolls-Royce Installation Design
A single installation design on a Rolls-Royce engine programme saved €1.7M compared to the next-best alternative — through first-principles thinking under time pressure.
Read more → Composites · Sustainability
Compositive — Mycelium Helmet
A helmet built from mushroom composite. I led the team, designed the helmet and production plan, and presented the financial case for the venture.
Read more → Product design
Moltitool
An efficient everyday-carry bike multi-tool — designed, prototyped, and brought to market. Clean, minimal, and actually useful.
Read more →The short version
I'm a senior mechanical engineer who has spent over a decade designing complex systems — from jet engine externals at Rolls-Royce to rocket fuel pumps at a Berlin startup to EV batteries built and deployed in Rwanda. I am currently leading the mechanical and process engineering at a carbon sequestration startup in Berlin, who are currently filing for insolvency. For this reason I am looking for new opportunities, and have made this portfolio website (enjoy!).
I want to work towards a challenging goal with a motivated team, and have a real impact on something that matters.