2023-04 - today - Measurement Point Characteristic - a system for managing parameters of consumption points for electricity and gas operators and suppliers. - Business requirements analysis. - Design and implementation of the newly developed system.

2012-01 - 2023-09 - Loyalty program for distributors of one of the largest food industry companies in Europe (over 10,000 active business program members).- Development of architecture.- Business analysis of client requirements.- System analysis.- Programming of functionality.- Analysis and programming of integrations with external systems (orders, transactions, SMS systems, vouchers).- Maintenance and monitoring of the project.- Customer support.2022-10 - 2023-03 - Loyalty platform migration from Jboss 4.22 and Java 7 to Spring Boot 3 and Java 17.- Migration planning.- Development of the new system architecture.- Migration of more challenging aspects.- Management of the backend project team.- Tasks aimed at increasing system speed and performance (mainly query optimization, caching, etc.).2021-10 - 2022-09 - Fuel management system software for fuel dispensing terminals and a remote management system.- Business and system analysis of the server and terminal backend.Development of microservices architecture for the server layer using Spring Boot, PostgreSQL, Kafka, Elasticsearch, Jasper Report.- Management of the backend project team.- Development of the terminal backend architecture using Micronaut and PostgreSQL.- Implementation of communication between terminals and the server side.- Implementation of microservices for the server layer and terminal backend.- Programming language: Java.2017-01 - 2021-09 - Tracking and monitoring system for construction machinery, trains, snowplows, etc. for an international client (tens of thousands of tracked machines).- System analysis.- Implementation of the server layer application using Spring Boot, PostgreSQL, Kafka, Elasticsearch, Jasper Report, Micronaut, Redis.- Collaboration on business analysis and architecture.- Programming languages: Java, Kotlin.(...)

2010-10 - 2011-12 - implementation of B2B loyalty program system2008-03 - 2010-09 - warehouse system for loyalty program rewards- Implementation of functionalities according to customer requirements- Implementation of user interface in Java Swing- Technologies used: JavaEE, PostgreSQL, Jasper Report, Swing, Webstart- Programming languages: Java

Visualization system for monitored forklifts in a warehouse and modeling of the warehouse itself:- Implementation of functionalities according to client requirements- 3D animations using Java Swing and JMonkey engine- Programming language: Java