Mariusz Krzaczkowski
Senior IT Engineer & Solutions Architect at YetiForce
Warsaw, Masovian Voivodeship, Poland
Summary
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Rockstar🎓
Top SchoolMariusz Krzaczkowski is a senior IT engineer and solutions architect with 11+ years building and leading development of the open-source YetiForce CRM, where he now oversees architecture, DevOps and product delivery. He blends full-stack PHP/JS development, database design and CI/CD with hands-on security practice (OWASP ASVS, dependency checks) to ship customizable CRM/ERP features and performant LAMP deployments. As a team lead and trainer he runs workshops and consulting engagements, turning complex business processes into extensible, standards-compliant software. His GitHub contributions reflect deep back-end work—schema evolution, event handlers and internal mail integration—showing a focus on core platform scalability rather than only surface UI tweaks. Based in Warsaw, he pairs academic teleinformatics foundations with a practical penchant for open-source tooling and measurable R&D improvements.
11 years of coding experience
10 years of employment as a software developer
Inżynier (Inż.), Teleinformatyka, Inżynier (Inż.), Teleinformatyka at Wyższa Szkoła Informatyki i Zarządzania w Rzeszowie
English, Polish
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (7)
php10
mysql9
crud9
backend9
workflow-management9
webservice8
database-design8
Programming languages (16)
Github contributions (5)
YetiForceCompany/YetiForceCRM
Dec 2014 - Jan 2023
We've moved! For more information, visit https://github.com/YetiForceCompany/YetiForce
Role in this project:
Back-end Developer
Back-end DeveloperContributions:36 releases, 165 reviews, 14928 commits in 8 years 3 months
Contributions summary:Mariusz's contributions primarily involve adding improvements to the codebase. They have modified the database schema by adding new fields and creating additional functionality by adding new events handlers and integrating features such as support for the creation of internal mail. This indicates a focus on enhancing the system's core functionality and database management, likely within the context of a CRM system.
customizationcontactsmauticweb-applicationquotes
YetiForceCompany/csrf-magic
Mar 2018 - Feb 2021
Automatic CSRF protection for PHP applications
Contributions:7 releases, 15 commits, 1 PR in 2 years 11 months
csrf-protectionphp-application
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