Senior Test Automation Engineer with Java and Kafka
Bydgoszcz
Senior Test Automation Engineer with Java and Kafka
Bydgoszcz, Bydgoszcz, Kuyavian-Pomeranian Voivodeship, Polska
Sii Sp. z o.o.
11. 10. 2025
Informacje o stanowisku
technologies-expected :
Java
Selenium / Cucumber / Junit
Apache Kafka
REST / gRPC / GraphQL
Git
Jenkins
technologies-optional :
Prometheus / Grafana
ELK Stack
Dynatrace
about-project :
We are looking for a detail-oriented Senior Test Automation Engineer to 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.
responsibilities :
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
requirements-expected :
Having at least 5 years of proven experience in test automation, preferably in international and multicultural environments
Working with Agile methodologies (Scrum, XP) and DevOps 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, GraphQL) using Postman, RestAssured, 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
offered :
Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
We share the profit with Workers - over PLN 60M has already been allocated for this aim since 2022
Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
Comfortable workplace – class A offices or remote work
Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
Investment in your growth – meetups, webinars, training platform and technology blog – you choose
Fantastic atmosphere created by all Sii Power People