Konstantin Wohlwend
Co-Founder at Stack (YC S24)
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolKonstantin Wohlwend is a founder and software engineer with a decade of experience building product-first infrastructure and startups, currently co-founding Stack (YC S24) to deliver Stack Auth. His background includes founding nunu.ai (YC W23), hands-on roles at Google, Jane Street, Bloomberg, and research work at ETH Zürich, blending production engineering with academic rigor. He holds a Master's in Informatics from ETH Zürich and is based in San Francisco, bringing a strong systems and security sensibility to identity/auth challenges. Konstantin pairs low-level engineering experience from top tech firms with repeated startup founding, and his public projects (see stack-auth.com and personal site) hint at a pragmatic, security-focused approach to developer tooling.
10 years of coding experience
3 years of employment as a software developer
Master's degree Informatik, Master's degree Informatik at ETH ZürichMatura, Matura at Liechtensteinisches Gymnasium
Github Skills (110)
authentication10
web-performance10
auth10
javascript10
session-management10
magic-link10
browser10
web-developer10
angular10
typescript10
nodejs10
keycloak10
bin-packing10
nextjs10
grids10
Programming languages (8)
Github contributions (5)
stack-auth/stack-auth
Feb 2024 - Apr 2025
Open-source Auth0/Clerk alternative
Contributions:223 reviews, 162 PRs, 2205 pushes in 1 year 1 month
authauth0authenticationclerkcognito
realChesta/degenquote-bot
Sep 2018 - Apr 2022
A Telegram bot to store quotes.
Contributions:68 commits, 27 PRs, 25 pushes in 3 years 6 months
telegram-botpythonbotquotestelegram
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.