Senior Test Automation Engineer Java and Kafka; f​/m​/x

Overview

Join our Scrum team developing next-generation e-commerce backend services. In this role, you will design and implement robust test automation frameworks for our Event-Driven Architecture (EDA) platform based on Apache Kafka and Event Sourcing. Your work will be critical to ensuring the scalability, reliability, and performance of distributed systems, while collaborating closely with developers and sharing knowledge within the QA community.

Sii ensures that all employment-related decisions are made solely on the basis of qualifications, competencies, and performance. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promote a diverse and inclusive work environment.

• Supporting development teams in testing activities within Agile environments
• Preparing and executing test plans, test scenarios, and exploratory testing where automation is not yet applied
• Building and maintaining automated tests across multiple levels
• Eliminating the backlog of manual regression tests through automation coverage
• Implementing integration, functional, load, and performance tests
• Validating message flows, event-driven workflows, and state transitions in event-sourcing environments
• Ensuring data consistency, idempotency, and fault tolerance across microservices
• Applying mocking and simulation techniques for event-driven test scenarios
• Reviewing automation test code to enhance quality and share knowledge
• Contributing to the QA Community of Practice by sharing principles, practices, and improvements

• Having at least 5 years of proven experience in test automation, preferably in international and multicultural environments
• Working with Agile methodologies (Scrum, XP) and Dev Ops practices
• Testing Kafka-based applications with strong expertise in distributed systems
• Programming in Java with frameworks and tools such as Cucumber, Selenium, and JUnit
• Performing API testing (REST, gRPC, Graph
  
  QL) using Postman, Rest Assured, or Karate
• Operating CI/CD and collaboration tools such as Git, Jenkins, Jira, and Confluence
• Understanding Event Sourcing, CQRS patterns, and contract testing frameworks in depth
• Conducting performance and load testing to ensure scalability and reliability
• Practicing BDD and Gherkin-driven methodologies in Agile teams
• Communicating fluently in English, both written and spoken, with technical and non-technical stakeholders
• Fluent Polish required
• Residing in Poland required

Job no. 260112-G961U

• Great Place to Work
• Solid financial situation
• Contracts with the biggest brands
• Centre of internal trainings
• Many experts you can learn from
• Open and accessible management team
• Profit sharing
• Passion Sponsorship program
• Regular integration events and trips
• Comfortable and well-equipped offices
• MySii app
• Medical care