I'm a full stack developer with a strong backend focus and a versatile technical background. I specialize in building scalable backend systems, custom platform extensions, and robust integrations using C#, PHP, TypeScript, and Python.
My work spans from creating enterprise-grade solutions based on REST APIs and SDKs, to refactoring legacy systems into clean, modular architectures. I'm experienced in working with complex data flows, validation logic, and containerized environments.
Currently, I'm developing solutions extending the WEBCON BPS platform — including integrations with Poland's National e-Invoicing System (KSeF) — and previously, I contributed to modernization projects in the banking and transport sectors, upgrading critical systems to modern stacks and standards (.NET, PHP 8, Clean Architecture, Docker).
I'm confident in client-facing environments, enjoy digging into business domains, and thrive in Agile teams where analytical thinking meets clean code and pragmatic engineering.
Backend Developer | .NET (C#) | ASP.NET | iText | FluentValidation
Contributed to the development of an integration module with Krajowy System eFaktur (KSeF) – Poland's national e-invoicing platform. The solution included rendering dynamic PDF invoices and building a robust validation layer for outbound invoices.
Fullstack Developer | PHP | PostgreSQL | JavaScript
Engaged in the modernization and large-scale refactoring project of a mission-critical application used in the loan lifecycle process. Included full upgrade to PHP 8, structural overhaul based on Clean Architecture, and collaborative domain modeling following DDD principles.
Fullstack Developer | PHP | MySQL | JavaScript
Open-source geocaching platform maintained collaboratively by international volunteers since 2006. Gained hands-on experience with distributed development workflows, legacy architecture, and open-source collaboration.
Let's build something great together! 🚀