Matthew Denner
Principal Engineer at Which?
London, England, United Kingdom
Summary
👤
SeniorMatthew Denner is a Principal Engineer based in London with over 15 years of hands-on experience building scalable, data-driven systems and a broader 30+ year technical career. He has led engineering initiatives across rapid-growth SaaS and high-throughput services—designing real-time pipelines, serverless localisation and ML-backed content moderation that saved substantial costs and unlocked new revenue. Matthew combines deep systems architecture (AWS, Go, event-driven design) with product sensibility, having shipped mobile apps, IVR/NLU customer solutions and experiment-driven features that improved operational resilience during crises like COVID. He mentors senior engineers and shapes engineering best practices while moving teams toward automation and measurable business impact. A former principal at the Wellcome Sanger Institute, he applied event-sourcing and publish-subscribe patterns to reduce data latency from days to seconds—an approach he continues to adapt for commercial platforms. Outside the codebase he’s taught inline skating, a reminder that he values adaptable teaching and tailoring solutions to individual needs.
15 years of coding experience
23 years of employment as a software developer
Github Skills (75)
ruby10
science10
biology10
rails10
android10
react-native10
react10
linux9
opengl9
emacs9
bluez9
spacemacs9
vim9
ios9
cross-platform9
Programming languages (11)
Github contributions (5)
mattdenner/dotfiles
Jan 2015 - Aug 2019
Contributions:415 pushes, 3 branches in 4 years 7 months
mattdenner/qmk_firmware
Oct 2019 - Apr 2023
Open-source keyboard firmware for Atmel AVR and Arm USB families
Contributions:7 pushes, 3 branches in 3 years 6 months
firmwareavratmelusbatmel-avr
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.