Senior Test Automation Engineer with Java and Kafka

Sii Sp. z o.o.; Bydgoszcz; On-site; PLN 180,000 - 240,000; Full time

Job summary

A leading technology firm in Poland is looking for a detail-oriented Senior Test Automation Engineer to join their Scrum team. The candidate will design and implement robust automation frameworks for an Event-Driven Architecture platform. Responsibilities include collaboration within Agile settings and maintaining high standards in testing across systems. Essential qualifications include at least 5 years of test automation experience, strong skills in Kafka, and fluent communication in English and Polish.

Benefits

Private healthcare

Benefits cafeteria

Car discounts

Investment in growth opportunities

Profit-sharing with employees

Comfortable workplace

Qualifications

• Minimum 5 years of experience in test automation.
• Familiar with Agile methodologies like Scrum.
• Strong background in distributed systems and Kafka applications.
• Experience in API testing using various tools.
• Fluent in both English and Polish.

Responsibilities

• Support development teams in Agile testing activities.
• Create and run test plans and scenarios.
• Build and maintain automated tests.
• Perform integration, functional, load, and performance testing.
• Ensure consistency across microservices.

Skills

Test Automation

Agile methodologies

API Testing

Java Programming

Kafka Expertise

Performance Testing

Communication in English

Fluent Polish

Tools

Cucumber

Selenium

JUnit

Postman

RestAssured

Git

Jenkins

Jira

Confluence

Job description

• 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 76M 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