Hanno Zulla
Technical Program Manager at Sovereign Tech Agency
Kleinmachnow, Brandenburg, Germany
Summary
👤
Senior🎓
Top SchoolHanno Zulla is a technical program manager and serial founder with over two decades of hands-on software and leadership experience, best known for building and scaling major German web communities like wer-weiss-was.de and early Xing.com. He combines deep engineering skills across web, backend, mobile and systems (C, Java, Python, Linux kernel) with proven operator instincts—hiring and running development and support teams through rapid growth and acquisition. As CEO/founder of multiple companies and now at Sovereign Tech Agency, he focuses on resilient, secure open infrastructure and helps startups break through technical ceilings, including performing technical due diligence for M&A. An active open-source contributor, his work ranges from front-end UI improvements on RetroPie’s EmulationStation to internationalization efforts for Sonic Pi and usability fixes in AntennaPod. Based near Berlin, he also teaches primary school kids to code, reflecting a commitment to practical tech education alongside entrepreneurial drive.
13 years of coding experience
21 years of employment as a software developer
Diplom, Informatik, Diplom, Informatik at Universität Hamburg
German, English, French
Github Skills (22)
c-language10
rails-i18n10
qt10
rman10
pi10
user-interface10
java10
javas10
j10
localization10
ember-i18n10
front-end-development10
android10
i18n-js10
g10
Programming languages (16)
Github contributions (5)
sonic-pi-net/sonic-pi
Jan 2015 - Feb 2020
Code. Music. Live.
Role in this project:
Localization / Internationalization Specialist
Localization / Internationalization SpecialistContributions:242 commits, 127 PRs, 470 comments in 5 years 1 month
Contributions summary:Hanno's commits primarily focus on internationalization (i18n) efforts within the Sonic Pi project. The user added and updated translation files for the Qt GUI, focusing on German and Japanese, and also updated the German translation. They addressed specific issues related to multiline literals and other i18n requirements within the code. They also made changes in the build process and documentation to support translations.
reactsynthesizerartsynthesislivecoding
RetroPie/EmulationStation
Jun 2018 - Jul 2019
A Fork of Emulation Station for RetroPie. Emulation Station is a flexible emulator front-end supporting keyboardless navigation and custom system themes.
Role in this project:Front-end Developer
Front-end DeveloperContributions:9 commits, 10 PRs, 38 comments in 1 year 1 month
Contributions summary:Hanno primarily focused on updating and improving the user interface of the EmulationStation front-end. Their contributions included fixing SVG resizing issues, updating artwork for input configuration, adding compass directions, and replacing bitmap graphics with SVG artwork for improved visual quality. They also modified the input configuration to recognize specific gamepads.
flexibleemulatorstationemulationthemes
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