Michał Marcinkowski
Chief Software Engineer at GFT Technologies Poland
Łódź Voivodeship, Poland
Summary
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Rockstar🎓
Top SchoolMichał Marcinkowski is a Chief Software Engineer with 11 years of hands-on experience building cloud-native Java systems and leading cross-functional teams from Łódź, Poland. He specializes in migrating high-performance trading and banking platforms to the cloud, blending software architecture, DevOps and platform integrations—most recently driving a Tier 1 FX platform migration. Michał led the design and implementation of a hybrid Anthos-based cloud cutover that enabled seamless, conditional user migration and was showcased at a GCP conference, reflecting both technical depth and operational thinking. He combines backend expertise (notably on Symfony-based e-commerce components like Sylius) with delivery leadership, pod management and pragmatic performance work such as introducing RxJava and WebSockets. Known for refactoring core systems and improving translation/localization flows in open-source projects, he pairs code-level craftsmanship with the ability to coordinate complex enterprise integrations.
11 years of coding experience
8 years of employment as a software developer
Lodz University of TechnologyTechnikum Informatyczne przy Zespole Szkół Elektrycznych we Włocławku
Polish, English
Stackoverflow
51reputation
2kreached
3answers
0questions
Github Skills (16)
model-driven10
model-building10
php10
translation10
dependency-injection10
modeling10
ecommerce10
model-driven-development10
symfony-ux10
symfony10
crud9
behat9
database-design9
rest-api9
sylius9
Programming languages (3)
Github contributions (5)
Sylius/Sylius
Sep 2014 - Mar 2017
Open Source eCommerce Framework on Symfony
Role in this project:
Back-end Developer
Back-end DeveloperContributions:942 commits, 969 PRs, 707 pushes in 2 years 6 months
Contributions summary:Michał contributed to the development of the Sylius e-commerce framework by implementing contact request and topic models, forms, and Behat scenarios within the "Sylius" namespace. They added templates, routings, and fixtures to the contact bundle. The user also worked on refactoring various core components, including order item and order unit classes, and performed improvements to the tax calculations.
apisyliusecommercephpheadless-ecommerce
Sylius/SyliusResourceBundle
Feb 2015 - Feb 2017
Simpler CRUD for Symfony applications
Role in this project:Back-end Developer
Back-end DeveloperContributions:108 commits in 2 years
Contributions summary:Michał made significant contributions to the Sylius Resource Bundle, specifically focusing on enhancements and refactoring related to translations and core functionalities. Their work included splitting locale providers, introducing a translatable entity locale assigner, and modifying the configuration to enable and customize translation features. Furthermore, the user addressed dependencies and fixed specific issues related to the shipping calculators, demonstrating a focus on enhancing the bundle's overall usability and features. The contributions involved adjustments to the dependency injection configuration and Form Types.
syliusphpsymfony-bundlecrudsymfony
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