Sveinbjörn Geirsson is a software engineer with 15 years’ experience building reliable, finance-grade systems and consumer macOS apps from Reykjavik. He has deep domain experience in payments, settlements, reporting and general ledger integrations from a near-decade at Rapyd, and more recently built pension fund systems and X-Road secure communications for Icelandic financial infrastructure. Equally at home in systems and UI, he’s an active open-source contributor who modernized macOS classics like Sloth and improved the Vienna RSS reader’s download and contextual menu UX. Sveinbjörn combines pragmatic back-end data processing—reconciling card networks, FX rates and chargebacks—with thoughtful front-end refinements, reflecting a full-stack mindset. He holds a BSc in Computer Science from the University of Iceland and publishes his work and projects at sveinbjorn.dev, signaling a long-term commitment to open tooling and clean, auditable systems.
15 years of coding experience
11 years of employment as a software developer
Bachelor of Science (BSc) Computer Science, Bachelor of Science (BSc) Computer Science at Háskóli Íslands
Mac app that shows all open files, directories, sockets, pipes and devices in use by all running processes. Nice GUI for lsof.
Role in this project:
Full-stack Developer
Contributions:18 releases, 305 commits, 4 PRs in 11 years 10 months
Contributions summary:Sveinbjörn's commits indicate modifications to Objective-C code related to the Sloth application, a Mac OS X tool for displaying open files and other system information. They refactored and modernized the codebase, including refactoring the UI from nib to xib format. They also focused on improving the user interface, including adding an application icon and implementing the ability to show file info in the info panel.
Vienna is a free and open-source RSS/Atom newsreader for macOS.
Role in this project:
Full-stack Developer
Contributions:6 commits, 3 PRs, 4 comments in 1 year
Contributions summary:Sveinbjörn primarily contributed to the Vienna RSS reader's download functionality and user interface. Their work involved fixing bugs related to the "Show in Finder" feature in the Downloads window, ensuring correct file handling. They also enhanced the user experience by adding an "Open With" submenu to the contextual menu within the Downloads window, enabling users to open downloaded files even if the download was not complete. Furthermore, the user implemented localization improvements for the "Open With" menu.
rssrss-readeratom-readerviennanewsreader
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