Case Studies – proof of our engineering impact

We led Katalog Marzen’s e-commerce transformation from a 15-year-old legacy system to a headless architecture built on Sylius and Symfony 6.4. The implementation covered an API-first stack with Next.js, Elasticsearch-powered search, asynchronous RabbitMQ communication, and a dedicated migration engine built with Flow PHP. The outcome: a 70% faster back office, elimination of the N+1 query problem in the migrator, and safe migration of complex business logic without regressions.

We engineered a seamless Tpay integration for Sylius to equip merchants with a highly reliable payment gateway. This module handles diverse checkout flows, secure callbacks, and real-time transaction synchronization – all built on strict clean code principles. The business impact? Minimized cart abandonment, eradicated synchronization errors, and a frictionless checkout pipeline. Inside this case study, we break down our webhook architecture, automated error recovery mechanisms, and the rigorous testing suite that makes this integration battle-tested.

We architected a custom ticketing platform on top of Sylius, completely overhauling the sales and attendee management pipeline for the country’s largest PHP tech event. The system delivers intuitive seat allocation, secure payment processing, automated invoicing, and deep CRM integrations. Engineered explicitly to handle massive high-traffic spikes, the platform remains highly available under heavy load, automating manual operations and upgrading the attendee experience. Here, we unpack the scalable architecture, deployment phases, and the hard data behind the results.