Senior Java Fullstack Developer (ST)

We are looking for a Java Developer for a team developing 46 after-sales processes for retail customers across the web channel, mobile app, and branches. The project is based on a microservice architecture and a BPMN engine (Camunda), with a backend in Java and Webflux and a frontend built from ready-made components. The work includes API integrations, asynchronous queue handling, and dynamic forms. Task breakdown: 80% back-end, 20% front-end. Minimum 5 years of experience as a Java Developer. Very good knowledge of Java 11+ / 17 and Spring Boot. Experience in reactive programming using Spring WebFlux. Knowledge of REST APIs and OpenAPI / Swagger standards. Practical experience with BPMN engines, e.g., Camunda (or alternatively: Activiti, Flowable, jBPM). Knowledge of SQL and Git. Experience with CI/CD processes. Knowledge of hexagonal architecture. Basic knowledge of JavaScript/TypeScript and Angular. Nice to have: Experience with messaging systems (Kafka, RabbitMQ); Monitoring: Grafana, ELK, Prometheus, Zipkin; Integration testing: WebTestClient, testcontainers; Frontend knowledge: Angular/React, RxJS, Storybook. Location: Remote - max. 2 meetings quarterly in the office + first day in the office. Form of employment: B2B. Rate: up to 180 PLN/H net + VAT. We offer Access to local and international projects - clients from France, Germany, Portugal, Great Britain, and Benelux countries. Support in professional development - training, technical certificates...