Jannis Grimm
Founder & President at Quadball Europe
Volketswil, Zurich, Switzerland
Summary
👤
Senior🎓
Top SchoolJannis Grimm is a Swiss software engineer and founder with 14 years of experience spanning full-stack web, cloud backends, iOS, and C# .NET, combining hands-on coding with product-minded technical leadership. A former Google engineer, he has led large-scale data migrations and rollouts for Tasks and Calendar, removed legacy complexity at scale, and earned recognition for architectural improvements. He founded and now chairs Quadball Europe, bringing governance, event operations and volunteer management experience to his technical leadership. Jannis contributes to open-source (including fixes and QA for the widely used Twig templating engine), holds an MSc in Software Engineering, and is passionate about code quality, pragmatic design and rapid iteration. Notably, he pairs enterprise-grade systems work with grassroots community-building—often balancing million-CHF logistics projects by day and boardgame nights with cats by evening.
15 years of coding experience
10 years of employment as a software developer
Master of Science - MS Software Engineering, Master of Science - MS Software Engineering at HSR Hochschule für Technik Rapperswil
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (8)
unit-testing10
php10
templater10
template-engine10
twig10
template-tags10
testing10
refactoring8
Programming languages (10)
Github contributions (5)
twigphp/Twig
Jul 2011 - Jul 2011
Twig, the flexible, fast, and secure template language for PHP
Role in this project:
Back-end Developer & QA Engineer
Back-end Developer & QA EngineerContributions:6 commits in 1 day
Contributions summary:Jannis primarily focused on refining and testing the Twig template engine's functionality. Their contributions involved fixing identified issues and ensuring existing tests pass, particularly within the `Twig_Node_Module` class. They also addressed existing tests by providing necessary fixes. Additionally, the user made a minor code style adjustment, switching a tab to four spaces for improved code readability.
phptwigtemplate-enginetemplate-languagetemplating
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