What you'll be responsible for Build, maintain, and improve automated test coverage using Kotlin or Java Test backend services across REST APIs, Kafka integrations, and microservice-based systems Design effective test cases and identify gaps in test coverage Perform manual and exploratory testing for new features and product changes Validate data consistency and correctness in PostgreSQL databases Maintain automated tests within GitLab CI pipelines and support test reliability across environments Review automation code and contribute to improving QA and engineering practices Work closely with Product Managers, Developers, and QA Engineers to ensure quality throughout the delivery process Support release activities, including regression testing and production readiness validation What we need 3+ years of experience in software testing, including test automation Strong programming skills in Kotlin or Java Experience building and maintaining automated tests in production environments Hands-on experience with REST API testing Experience working with microservices architecture Experience with Kafka or other message broker technologies Strong SQL knowledge and experience working with PostgreSQL Experience with Git and CI/CD tools, preferably GitLab CI Good understanding of software testing principles, quality assurance practices, and test design techniques Ability to work across both manual and automated testing activities