Jonatan Svennberg
Staff Product Engineer at Ghost
Norrköping, Sweden
Summary
🤩
Rockstar🎓
Top SchoolJonatan Svennberg is a Staff Product Engineer with 17 years of hands-on experience building front-end and mobile products, now focused on climate-minded technology from Norrköping, Sweden. He has founded and led multiple companies, shipping consumer and developer-facing apps while scaling teams and products from idea to operation. At Normative and now Ghost he combined product engineering with technical leadership, and his open-source work on the WYMeditor project shows a long-standing attention to internationalization, UX polish and cross-browser compatibility. Trained in philosophy and communication, he brings a thoughtful, user-centered approach to engineering and product decisions. Known for balancing entrepreneurial grit with deep frontend craftsmanship, he often surfaces small but impactful improvements—like link attribute support and dialog UX fixes—that quietly raise overall product quality.
17 years of coding experience
19 years of employment as a software developer
Communication and Media Studies, Communication and Media Studies at Kaggeholms FolkhögskolaPhilosophy, Philosophy at University of Gothenburg
English, Swedish, German
Github Skills (6)
html10
localization10
javascript10
user-interface10
jquery10
css9
Programming languages (13)
Github contributions (5)
wymeditor/wymeditor
Mar 2009 - Mar 2012
Pure js cross-browser WYSIWYM editor with a focus on the clean separation of content and styling.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:161 commits in 3 years
Contributions summary:Jonatan primarily contributed to the WYMeditor project by implementing and improving front-end features. Their work includes adding and updating language translations, specifically for Croatian, Finnish, Welsh, and Japanese, indicating a focus on internationalization and localization. They also addressed various UI and functionality bugs, like fixing link editing and correcting issues related to content handling, and updated the dialogs to use submit buttons. The user also added support for the `rel` attribute in links.
cross-browserpurejswysiwym
UniversalAvenue/TiCrosswalk
Jan 2015 - Jul 2015
WebView replacement for Titanium Mobile
Contributions:29 commits, 1 PR, 10 pushes in 5 months
titanium-mobilewebview
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