Senior Java Software Engineer

XTB is a global company from the financial industry, focusing on online trading of financial instruments. We are the largest FinTech in Poland and a leader in Central and Eastern Europe, and the range of our operations covers several countries, including Asia and South America. At XTB , we focus on the development of our employees, giving them opportunities to gain knowledge and skills in various fields, as well as offering a number of training and development programs. If you are looking for challenges and want to gain valuable experience in an international business environment, XTB is the right place for you. We are a certified Great Place to Work company. Responsibilities Working in a Scrum environment, with a strong focus on effective team collaboration. Development of multiple products, offering the opportunity to build a wide range of functionalities. High-performance systems - we process massive volumes of data with minimal latency. A strong emphasis on high availability and scalability, supporting investments made by users all over the world. Technologies Our microservices are primarily developed in Java 17+ using Micronaut. Deployed on Rancher (Kubernetes) across multiple data centers. Inter-service communication via gRPC and Protobuf. Asynchronous communication using Kafka, Pulsar, RabbitMQ, and Chronicle. Data storage in PostgreSQL, MongoDB, and Redis. Production monitoring with Prometheus, Grafana, OpenSearch, Opsgenie and Open Telemetry. Testing with JUnit and T