Michael Voříšek
R&D at MAHALUX s.r.o.
Prague, Czechia
Summary
🤩
Rockstar🎓
Top SchoolMichael Voříšek is an R&D leader based in Prague with 10 years of hands-on experience building robust back-end systems, optimizing performance, and leading research and development at MAHALUX. He combines deep PHP expertise with rigorous QA and test automation—evidenced by contributions to high-profile projects like PHPUnit, PHPStan, Xdebug and PrestaShop—where he fixed subtle bugs, improved profiling, and strengthened test suites. Michael's work spans concurrency, static analysis, and code coverage, and he routinely improves developer tooling and CI quality across repositories. A lifelong learner who questions assumptions, he pairs engineering curiosity with practical results: national competition gold medals and multiple successful business outcomes. Comfortable across front-end and back-end domains, he also modernizes legacy codebases and build processes, bringing both performance gains and better developer ergonomics. His background in electrical engineering augments his systems thinking and low-level optimization skills in software projects.
11 years of coding experience
Engineer's Degree, Electrical, Electronics and Communications Engineering, Engineer's Degree, Electrical, Electronics and Communications Engineering at Faculty of Electrical Engineering, Czech Technical University in Prague
English, German, Czech, French
Stackoverflow
3,378reputation
120kreached
57answers
43questions
Github Skills (71)
postgresql10
testing10
databases10
test-framework10
c1110
refactor10
phpunit10
c1710
type-system10
code-analysis10
component-library10
prestashop10
profiling10
refactoring10
lessc10
Programming languages (26)
Github contributions (5)
php-lock/lock
Nov 2020 - Mar 2021
Popular PHP library for serialized execution of critical code in concurrent situations
Role in this project:
Back-end Developer & QA Engineer
Back-end Developer & QA EngineerContributions:4 releases, 2 reviews, 6 commits in 3 months
Contributions summary:Michael primarily focused on enhancing the testing infrastructure and adding support for various database configurations. They introduced PHPStan for static analysis, ensuring code quality. The user modified existing tests and added new ones related to concurrency and mutex implementations. Furthermore, the user updated test configurations to support database interaction with MySQL and PostgreSQL, increasing the robustness of the codebase.
php-librarylockmutexsemaphorephp
fomantic/Fomantic-UI
May 2022 - Jan 2023
Fomantic-UI is the official community fork of Semantic-UI
Role in this project:Front-end Developer
Front-end DeveloperContributions:178 reviews, 30 commits, 53 PRs in 8 months
Contributions summary:Michael primarily contributed to improving the Fomantic-UI library by addressing code quality and formatting issues. Their work includes fixing typos, standardizing whitespace, and enforcing code style guidelines. They also made improvements to the calendar and dropdown modules, fixing bugs and improving functionality. Additionally, they worked on the build process, refactoring code to use modern JavaScript features.
fomantic-uisemantic-uiuicss-frameworksemantic
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