Christian Rotzoll
CTO at Geektank Labs GmbH
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolChristian Rotzoll is a Berlin-based technology leader and entrepreneur with 12 years of professional experience who currently serves as CTO of Bitsurance while also running Geektank Labs. He blends hands-on engineering with product instincts developed across startups and open-source projects—from founding Podcast Ready and the viral DogeRain app to building Bitcoin/Lightning tooling like the RaspiBlitz. Christian has repeatedly moved between CEO/CTO roles and senior full‑stack development, demonstrating an ability to ship consumer apps, fintech platforms, and infrastructure for decentralized networks. His background in media systems and long-running involvement in community-driven OSS and nonprofit projects underline a pragmatic, user-focused approach to complex systems. Notably, his work on RaspiBlitz reflects a commitment to accessible self-hosted infrastructure beyond typical commercial stacks.
12 years of coding experience
9 years of employment as a software developer
B.Sc. Media Systems, B.Sc. Media Systems at Bauhaus-Universität Weimar
German, English
Stackoverflow
106reputation
5kreached
3answers
1question
Github Skills (101)
lightning-network10
peer-to-peer10
cryptocurrency10
wallet10
webapp10
lightning10
bitcoin10
lcd10
segwit10
hardware-wallet10
blockchain10
litecoin10
daemon10
raspberry-pi10
networked9
Programming languages (13)
Github contributions (5)
rootzoll/map-bitcoinsofa
Dec 2020 - Dec 2021
Contributions:23 commits, 32 pushes, 2 branches in 1 year
edu-sharing/edu-sharing-app
Jul 2017 - Mar 2018
Contributions:82 commits, 67 pushes, 1 branch in 8 months
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