Harry Lachenmayer
Co-Founder & CTO at Picnic
London, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolHarry Lachenmayer is a founder and hands-on CTO with 14 years of experience building consumer and media products, currently leading Picnic, a privacy-first app for organizing photos and videos. He combines product-minded engineering with people ops, having scaled Boiler Room’s engineering team and led end-to-end delivery for multiple early-stage startups. Deeply interested in local-first and decentralized architectures, he researches peer-to-peer protocols and type-safe event-sourcing patterns while still shipping React, React Native and Node.js systems in production. He has a track record of designing recruitment and onboarding processes, running product discovery workshops, and mentoring junior engineers. A functional-programming enthusiast who warns against seductive-but-useless generality (the “Turing tar-pit”), he pairs rigorous academic training (MEng, First Class, Imperial College) with practical startup execution. Based in London, he quietly blends theory-building with pragmatic shipping—the kind of engineer who can sketch a protocol one week and launch an app the next.
14 years of coding experience
6 years of employment as a software developer
Master of Engineering - MEng, Computing, First Class Honours, Master of Engineering - MEng, Computing, First Class Honours at Imperial College LondonLeaving Certificate, 580/600, Leaving Certificate, 580/600 at St. Kilian's German School Dublin - EurocampusEarly University Entrance, ENGINEERING, Early University Entrance, ENGINEERING at Dublin City University
German, French
Stackoverflow
968reputation
59kreached
3answers
3questions
uibutton
top-5%
cocoa
top-5%
Github Skills (200)
http-client10
google-maps10
nodejs10
css10
expo10
frontend10
ajax10
mobile10
microfrontend10
javascript10
rendering10
maps10
cross-platform10
ios10
react10
Programming languages (11)
Github contributions (5)
lachenmayer/dotfiles
Jul 2012 - Jul 2022
Contributions:43 commits, 25 pushes in 10 years 1 month
lachenmayer/random-access-key-value
Jul 2018 - Feb 2019
Makes a random-access-storage instance out of any LevelDB-compatible key-value store.
Contributions:19 commits, 3 PRs, 11 pushes in 6 months
leveldbdatabasecachestoragekey-value-store
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