Marek Víger
Independent Senior Software Engineer at Code Less Mess
Bratislava, Region of Bratislava, Slovakia
Summary
👤
Senior🎓
Top SchoolMarek Víger is an independent senior software engineer and tech lead with nearly two decades of experience modernizing large-scale PHP systems under production constraints. He specializes in pragmatic, evolutionary architecture—introducing testability, observability and clearer boundaries to legacy codebases when rewrites aren’t an option, and measures success by production stability. Marek has led major phased upgrades (PHP 5.x → 7.x) across multi-million-line codebases, delivering measurable gains like halved CPU usage, 4× telemetry throughput and dramatic log-noise reduction. He balances hands-on implementation with mentoring and raised architectural decision standards across teams, and has applied these skills as Head of Engineering and CTO roles. Outside core backend work he contributes to open-source projects, improving documentation and maintainability in widely used repos such as AdminLTE and an OAuth2 server wrapper. Based in Bratislava, he prefers pragmatic trade-offs over theoretical purity and focuses on long-term maintainability for business-continuous systems.
12 years of coding experience
13 years of employment as a software developer
Bachelor, Computer Sciences, Bachelor, Computer Sciences at Univerzita Komenského v BratislaveBachelor, Computer Sciences, Bachelor, Computer Sciences at Constantine the Philosopher University in Nitra
English, Slovak
Github Skills (14)
yii10
html10
php10
adminlte10
bootstra10
dashboard10
admin10
bootstrap10
back-end-development10
oauth10
apidoc9
javascript9
api9
css7
Programming languages (13)
Github contributions (5)
filsh/yii2-oauth2-server
May 2015 - Jul 2015
A wrapper for implementing an OAuth2 Server(https://github.com/bshaffer/oauth2-server-php)
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 commits, 3 PRs, 2 comments in 1 month
Contributions summary:Marek primarily contributed to the back-end logic of the OAuth2 server wrapper. Their work involved fixing class names, updating PHP documentation, and adding functionality for custom response types within the module. These changes suggest a focus on improving code maintainability and extending the server's flexibility and configurability. The updates to Module.php indicate involvement in defining the server's behavior and integrating third-party components.
phpvkphp-serveroauth2-serveroauth2
ColorlibHQ/AdminLTE
May 2015 - Aug 2015
AdminLTE - Free admin dashboard template based on Bootstrap 5
Role in this project:Front-end Developer
Front-end DeveloperContributions:8 commits, 10 PRs, 9 comments in 3 months
Contributions summary:Marek primarily contributed to the documentation of the AdminLTE template, focusing on the layout and available skins. They updated the documentation, including the addition of skin switch functionality with the required HTML and JavaScript changes. Furthermore, the user integrated and configured bootlint to validate the HTML code across the documentation pages. These changes aimed to improve the user experience and maintain code quality.
bootstrap4admin-panelbootstrap5adminadminlte
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