Senior Java Developer

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.

• Strong experience in building Java-based microservices with hands-on expertise in designing, implementing, and evolving microservices, understanding scalability and performance challenges.
• Ability to deliver according to requirements by translating business analysis into concrete technical solutions while ensuring compliance with requirements and deadlines.
• Ownership and proactivity in taking responsibility for assigned tasks, identifying risks, and proposing solutions to ensure successful project delivery.
• Commitment to code quality by adhering to the highest engineering standards, focusing on clean, testable code and alignment with best practices and system architecture.
• Active contribution to project development through continuous improvement, optimization, proposing innovative solutions, and collaborating closely with the team.
• Experience in effective communication and collaboration with an experienced team, building productive working relationships, and aligning on goals and decisions within a mature team environment.

• 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 - processing massive volumes of data with minimal latency.
• Ensuring high availability and scalability to support investments made by users worldwide.

Technologies:

• Developing microservices primarily in Java 17+ using Micronaut.
• Deployment on Rancher (Kubernetes) across multiple data centers.
• Inter-service communication via gRPC.
• Asynchronous communication using Kafka, Pulsar, RabbitMQ, and Chronicle.
• Data storage in PostgreSQL, MongoDB, and Redis.
• Production monitoring with Prometheus, Grafana, OpenSearch, and Opsgenie.
• Testing with JUnit and Testcontainers.
• Development in IntelliJ IDEA with GitHub Copilot support.
• Source code hosted on GitLab, with builds managed via GitLab CI.
• Task tracking in Jira and documentation in Confluence.
• Extensive use of Google Workspace: Gmail, Drive, Docs, Meet, and Chat.
• Use of internally developed GenAI tools available to all employees.