Christoph Witzany
Co-Founder & CTO at AllPeep
Klagenfurt, Carinthia, Austria
Summary
🤩
Rockstar🎓
Top SchoolChristoph Witzany is a seasoned technology leader and co-founder with 13 years of hands-on experience building high-throughput backend systems, developer tools, and user-facing products from Austria. As Co-Founder & CTO of AllPeep and former interim CTO roles, he has repeatedly taken responsibility for architecture, team leadership, and production-grade engineering—most notably designing a payments processor handling thousands of transactions per second at handcheque. He contributes to open source projects such as Matrix Synapse (LDAP integration) and Mailpile, showing comfort across Python/Twisted backends, DevOps, and front-end UI work, and helped add real-time signalhub functionality to a community conference platform. Comfortable with polyglot stacks (Java, Clojure, React Native, GraphQL, FoundationDB) and distributed systems, he blends pragmatic engineering with product-facing thinking. Collected academic training in computer science and physics underpins a mindset that treats elegant tech as borderline magical, and he often moves authentication, scalability, and deployment concerns into cleaner, maintainable abstractions.
13 years of coding experience
19 years of employment as a software developer
Vienna University of Technology
Italian, German, English
Github Skills (25)
ldap10
javascript10
python10
css10
authentication10
user-authentication10
websocket10
e-mail10
matrix-org10
websockets-client10
twisted10
nodejs10
websocket-client10
webrtc10
client-websocket10
Programming languages (14)
Github contributions (5)
jam-systems/jam
Feb 2021 - Dec 2022
🍓 Jam is your own open source Clubhouse for mini conferences, friends, communities
Role in this project:
Back-end Developer
Back-end DeveloperContributions:232 commits, 2 PRs, 631 pushes in 1 year 10 months
Contributions summary:Christoph added signalhub server code, along with its associated test files. Signalhub is used for real-time communication. The contributions involve creating a server that handles POST requests for publishing data and GET requests for subscribing to channels.
podcastinggoogle-meetjampodcasttwitter-spaces
mailpile/Mailpile
Jun 2014 - Sep 2015
A free & open modern, fast email client with user-friendly encryption and privacy features
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:55 commits, 6 PRs, 23 comments in 1 year 3 months
Contributions summary:Christoph contributed to multiple aspects of the Mailpile project, including front-end UI enhancements within the CSS and JavaScript files, which suggests a focus on improving the user interface and experience. They also made changes in the backend, specifically in the Python files. They also worked on a vagrant file and nginx configurations, implying a degree of DevOps involvement to improve the development and testing workflow.
imap-clientprivacysecurityemailpgp
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