Pirmin Kalberer
Co-Owner at Sourcepole
St. Gallen, St. Gallen, Switzerland
Summary
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RockstarPirmin Kalberer is a seasoned software entrepreneur and co-owner of Sourcepole with over 21 years of hands-on experience building and shipping production software from Switzerland. He combines deep backend expertise with full-stack instincts, exemplified by contributions to prominent open-source projects such as GDAL—where he improved Interlis format support and test coverage—and nushell, adding a polished fuzzy history search with result highlighting. His work shows attention to edge cases in geospatial data handling and a pragmatic approach to usability and display issues. As a long-term co-owner at a product-focused company, he balances technical problem solving with business continuity and product delivery. Colleagues can expect a developer who refactors thoughtfully, writes robust tests, and quietly improves developer and user experiences behind the scenes.
20 years of coding experience
Github Skills (15)
spatial10
geo10
c-language10
rust10
shell10
geospatial10
ogr10
cprogramming-language10
spatial-data10
test-automation10
crossterm9
terminal-ui8
vector-math4
vector4
raster4
Programming languages (20)
Github contributions (5)
OSGeo/gdal
Jun 2005 - Jan 2016
GDAL is an open source MIT licensed translator library for raster and vector geospatial data formats.
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:139 commits, 1 PR, 1 push in 10 years 8 months
Contributions summary:Pirmin primarily contributed to the GDAL library's Interlis (ILI) driver, focusing on bug fixes and enhancements related to the handling of INTERLIS 1 and 2 data formats. Their work included resolving issues with geometry handling, such as missing geometry and curve support. They also added and improved automated tests for the Interlis driver, including those for format code, character encoding, and multi-geometry support. Additionally, they modified code to provide improved support for arc-based geometries.
licensedrasteriogeospatialrasterdata-formats
nushell/nushell
Sep 2019 - Jun 2021
A new type of shell
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:14 commits, 6 PRs, 9 comments in 1 year 9 months
Contributions summary:Pirmin primarily contributed to the development of a history search feature within the nushell shell. They implemented a fuzzy search algorithm to allow users to search through their command history and select previous commands. The contributions involved modifying existing code to integrate the history search functionality. Furthermore, the user refactored and improved the search feature with enhancements, including highlighting search results and fixing display glitches.
rusttype-ofshellbash
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