Backend Engineer with over 3 years of commercial experience, specializing in Java and Spring Boot for building reliable, high-performance backend systems. Demonstrated expertise in system modernization, designing event-driven architectures, and optimizing PostgreSQL solutions at ENTE Sp. z o.o. Skilled at mentoring, problem solving, and end-to-end development, including Angular frontends. Motivated by delivering scalable, maintainable, production-ready code and aspiring to continue enhancing backend performance and software architecture in cutting-edge environments.

Refactored legacy Java applications to Clean Architecture with Spring Boot, drastically improving maintainability and performance. Designed and built a multi-threaded real-time vehicle diagnostic system processing over 4,000 signals per vehicle. Created reliable external system integrations, architected key modules for depot management and automated vehicle allocation, and managed deployment lifecycles. Led architectural decisions, requirement analysis, client consultations, and intern mentoring. Supported both backend and frontend with Angular integration and maintenance.

Backend Engineer

Led incremental introduction of Apache Kafka into a legacy system, configuring environments, testing integrations, and improving reliability.

Refactored legacy Java apps to Clean Architecture with Spring Boot, built a real-time vehicle diagnostic system, and mentored teammates.