{"id":802705,"url":"https://alion.io/job/xtb-senior-java-software-engineer","title":"Senior Java Software Engineer","company":{"id":2723,"name":"XTB","domain":"xtb.com","url":"https://alion.io/company/xtb","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"A","score":95,"open_postings":3,"ghost_share":0,"stale_share":0,"repost_share":0.333,"time_to_fill_p50_days":51,"computed_at":"2026-11-06T05:58:05Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Warsaw, Poland"],"countries":["PL"],"hiring_countries":["PL"],"hiring_countries_total":1,"salary":{"min":20400,"max":27000,"currency":"PLN","period":"month","gross":null,"usd_annual":83340},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"Claude Code","optional":false},{"name":"Confluence","optional":false},{"name":"Copilot","optional":false},{"name":"GitLab","optional":false},{"name":"GitLab CI","optional":false},{"name":"Gmail","optional":false},{"name":"Google Workspace","optional":false},{"name":"Grafana","optional":false},{"name":"gRPC","optional":false},{"name":"Java","optional":false},{"name":"Jira","optional":false},{"name":"JUnit","optional":false},{"name":"Kubernetes","optional":false},{"name":"Micronaut","optional":false},{"name":"OpenSearch","optional":false},{"name":"OpenTelemetry","optional":false},{"name":"Opsgenie","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Prometheus","optional":false},{"name":"RabbitMQ","optional":false},{"name":"Rancher","optional":false},{"name":"Redis","optional":false},{"name":"Scrum","optional":false},{"name":"Testcontainers","optional":false}],"status":"live","first_seen_at":"2026-08-04T12:26:52Z","employer_posted_date":"2026-08-04","last_verified_at":"2026-11-06T19:54:53Z","board_verified":true,"closed_at":null,"days_open":94,"trust":{"level":"ok","repost_count":1,"flags":[],"days_open":93},"description":"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.\nWe are a certified Great Place to Work company.\nResponsibilities\nWorking in a Scrum environment, with a strong focus on effective team collaboration.\nDevelopment of multiple products, offering the opportunity to build a wide range of functionalities.\nHigh-performance systems - we process massive volumes of data with minimal latency.\nA strong emphasis on high availability and scalability, supporting investments made by users all over the world.\nTechnologies\nOur microservices are primarily developed in Java 17+ using Micronaut.\nDeployed on Rancher (Kubernetes) across multiple data centers.\nInter-service communication via gRPC and Protobuf.\nAsynchronous communication using Kafka, Pulsar, RabbitMQ, and Chronicle.\nData storage in PostgreSQL, MongoDB, and Redis.\nProduction monitoring with Prometheus, Grafana, OpenSearch, Opsgenie and Open Telemetry.\nTesting with JUnit and Testcontainers.\nDevelopment in IntelliJ IDEA with GitHub Copilot, Windsurf and Claude Code support.\nSource code hosted on GitLab, with builds managed via GitLab CI.\nTask tracking in Jira and documentation in Confluence.\nExtensive use of Google Workspace: Gmail, Drive, Docs, Meet, and Chat.\nInternally developed GenAI tools available to all employees.\nRequirements\nStrong Experience in building Java-based microservices - hands-on expertise in designing, implementing, and evolving microservices, with an understanding of scalability and performance challenges.\nAbility to deliver according to requirements - translating business analysis into concrete technical solutions while ensuring compliance with requirements and deadlines.\nOwnership and proactivity - taking responsibility for assigned tasks, identifying risks, and proposing solutions to ensure successful project delivery.\nCommitment to code quality - adhering to the highest engineering standards, focusing on clean, testable code and alignment with best practices and system architecture.\nActive contribution to project development - engaging in continuous improvement and optimization, proposing innovative solutions, and collaborating closely with the team toward shared goals.\n Experience in effective communication and collaboration with an experienced team - you are comfortable working with professionals with strong expertise, building productive working relationships, and aligning on goals and decisions within a mature team environment.\nWhat we offer\nReal influence on the development of the company and the product.\nWork in an experienced team that is happy to share its knowledge.\nA clear vision of development thanks to regular feedback and clear career paths.\nRegular team-building meetings.\nBenefits\nA training budget for courses and conferences that interest you.\nAn extra day off on your birthday.\nAn extra day off for parents.\nEquipment tailored to your 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