Toni Rönkkö

Toimitusjohtaja at VesiKuutio Oy

Kuopio, North Savo, Finland
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Summary

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Rockstar
🎓
Top School
Toni Rönkkö is a Finnish software entrepreneur and CEO with 11 years of professional experience building pragmatic, user-focused software and games that help people accomplish real-world tasks. He combines deep technical chops—from low-level C/C++ improvements in open-source projects to full-stack product delivery—with a PhD background in pharmaceutical chemistry and an unusual mix of scientific rigor and product intuition. Toni has founded and led multiple companies while holding senior developer and architect roles, demonstrating an ability to move between hands-on coding and strategic leadership. Known for calm, steady leadership and a philosophy that computers should serve people, he prioritizes simplicity, robustness, and real-world utility in every project. An active contributor to tools that improve stability and portability (e.g., improving dirent handling for 64-bit builds), he brings both entrepreneurial grit and meticulous engineering to solve practical problems.
code11 years of coding experience
job26 years of employment as a software developer
bookPhD Pharmaceutical Chemistry, PhD Pharmaceutical Chemistry at University of Eastern Finland
languagesEnglish, Finnish
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Github Skills (6)

error-handling10
c-language10
lib10
warnings10
cprogramming-language10
compiler-errors10

Programming languages (4)

JavaCJavaScriptPHP

Github contributions (5)

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tronkko/dirent

Sep 2015 - Jul 2022

C/C++ library for retrieving information on files and directories
Role in this project:
userBack-end Developer
Contributions:4 releases, 68 commits, 26 PRs in 6 years 10 months
Contributions summary:Toni primarily focused on improving the robustness and functionality of the C/C++ library. Their contributions included fixing typos, merging code, and addressing compiler warnings to enhance the library's compatibility with 64-bit builds. Additionally, they addressed errors related to the `opendir` function and improved the handling of error messages, and improved the codebase by removing unnecessary null pointer checks. These changes improved the library's stability and adherence to proper error handling.
directoriescppc-library
tronkko/js-vector

Jun 2015 - Dec 2018

Contributions:5 commits, 18 pushes, 1 branch in 3 years 7 months
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