Java Kotlin Developer (e-commerce)

Development of an e-commerce project for a client that is one of the largest companies in this sector in the country. Our expectations Min. 4 years of experience as a Software Developer Advanced proficiency in Java and Kotlin, alongside hands-on experience with the Spring and Micronaut frameworks Degree in a technical field (STEM discipline preferred) Deep understanding of JVM execution, memory management, and performance tuning Proven experience with search technologies, specifically Apache Solr and Elasticsearch, preferably within the Adtech domain Solid background in microservices architecture and working knowledge of NoSQL databases (e.g., MongoDB) Experience with Docker and/or Kubernetes, coupled with strong adherence to TDD, unit testing, and integration testing practices Demonstrated experience in Agile/Scrum environments English proficiency at a minimum B2 level Willingness to occasionally visit the client's office in Warsaw, subject to prior arrangement Main responsibilities Software development within a development team using agile methodology Participation in team meetings and collaborative creation and execution of assigned tasks Active involvement in delivering increasingly better programming solutions throughout the full project lifecycle — code reviews, testing others’ changes, deployment, maintaining cloud infrastructure, and creating documentation