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Sii Poland • Toruń, Kuyavian-Pomeranian Voivodeship, Poland
Role & seniority: Senior Test Automation Engineer (Scrum team)
Stack/tools: Event-Driven Architecture; Apache Kafka; API validation; backend data verification; automation framework design/optimization; distributed microservices; test doubles and simulations for asynchronous communication; AI/QA community practices optional involvement.
Define and refine quality criteria with development squads; prepare structured test docs and scenario coverage.
Create/maintain automated regression suites; translate manual verification into automation; implement integration and end-to-end validation for backend services.
Verify event flows/state transitions in event-sourced systems; perform exploratory testing where automation is limited; contribute to QA Community of Practice.
Proven experience in comprehensive test strategy development
Strong automation framework architecture/optimization
Solid understanding of EDA and event sourcing; API validation; backend data verification
QA for distributed/microservices systems; familiarity with message-driven platforms (Kafka)
Knowledge of non-functional testing (performance, scalability, resilience); data integrity, idempotency, fault tolerance
Active peer review and knowledge exchange
Participation in QA Community of Practice initiatives; promotion of best practices
Development of test doubles and asynchronous com
Join a Scrum team developing the next generation of e-commerce backend services. As a Senior Test Automation Engineer, you will play a key role in ensuring the quality of a modern, distributed platform based on Event-Driven Architecture and Apache Kafka. We are looking for a detail-oriented professional with a creative mindset and strong experience in comprehensive test planning and automation. You will collaborate closely with developers to ensure API and data layers are thoroughly verified before production release, while actively contributing to the QA community and supporting the automation skill network.
Your tasks
Collaboration with development squads in defining and refining quality criteria Preparation of structured test documentation and scenario coverage Creation and continuous enhancement of automated regression suites Transformation of manual verification processes into automated solutions Implementation of integration and end-to-end validation for backend services Verification of event flows and state transitions within event-sourced systems Execution of exploratory verification activities where automation coverage is limited Critical analysis of requirements and identification of potential quality risks Development of test doubles and simulation mechanisms for asynchronous communication Contribution to the QA Community of Practice initiatives and promotion of best practices
Requirements
Proven experience in comprehensive test strategy development Strong background in automation framework architecture and optimization Solid understanding of Event-Driven Architecture and event sourcing patterns Practical knowledge of API validation and backend data verification Experience in quality assurance for distributed and microservices-based systems Familiarity with message-driven platforms, including Apache Kafka Knowledge of non-functional testing approaches (performance, scalability, resilience) Understanding of data integrity, idempotency, and fault tolerance principles Active involvement in peer review processes and engineering knowledge exchange
Job no. 260227-FL05V
Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws.
Benefits For You
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