Georg Jähnig
Founder at trovu.net
Berlin, Czechia
Summary
👤
Senior🎓
Top SchoolGeorg Jähnig is a Berlin-based founder and freelance software engineer with 14 years of experience building web applications using Drupal/PHP and modern JavaScript/TypeScript stacks like React. He has launched and maintained multiple self-funded, user-focused projects—trovu.net, ExpatWiki.org and BerlinCheap.com—combining product design, marketing, and ops to generate passive income and real-world adoption. Georg contributes to notable open-source tooling, including backend work on the widely used youtube-dl project where he implemented a site extractor and handled edge cases like RTMP downloads. Trained in computational linguistics, he brings a pragmatic, research-minded approach to scraping, data extraction and UX-focused tooling, and often packages his work as free software.
14 years of coding experience
4 years of employment as a software developer
Diplom, Computational Linguistics, Diplom, Computational Linguistics at University of Potsdam
German, Polish, English, Spanish, Czech, French, Danish, Russian, Esperanto
Stackoverflow
789reputation
47kreached
2answers
16questions
Github Skills (24)
json-parser10
json10
python10
youtube-dl10
jsonp10
extraction10
video-download10
api10
parsing10
interaction10
extractor10
feature-extraction9
webscraping9
regular-expression9
data-extraction9
Programming languages (14)
Github contributions (5)
ytdl-org/youtube-dl
May 2014 - Jun 2014
Command-line program to download videos from YouTube.com and other video sites
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 commits, 3 comments, 2 issues in 4 days
Contributions summary:Georg contributed by adding support for the spiegeltv.de video extractor, which involved implementing logic to download video metadata and the video itself. They implemented a new extractor class, `SpiegeltvIE`, that handled parsing the website and retrieving the necessary information for video download. Further contributions refined the implementation by using existing functions to download JSON and correcting coding style, then addressing test failures related to rtmp downloads.
downloadervideosyoutubeyoutube-dlvideo-sites
trovu/trovu-deploy
Nov 2023 - Mar 2025
Contributions:551 pushes in 1 year 4 months
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