The posting
📍 Location: Remote (with occasional visits to Warsaw office)
💰 B2B: 115–135 PLN/h
We are looking for a proactive and detail-oriented Senior Test Engineer to join a team working on complex supply chain and data platform solutions. The role involves end-to-end testing of event-driven systems and data integrations in an international environment, with strong focus on data quality, mappings, and cross-system flows.
Responsibilities
• Lead and manage end-to-end testing activities across integration and data platform components • Design, execute, and maintain test scenarios for event-driven architectures (Kafka-based systems) • Validate data mappings, transformations, and end-to-end business processes across multiple systems • Investigate defects by tracing issues across integration flows, mapping logic, components, and data quality • Collaborate closely with developers, SMEs, and business stakeholders to ensure high-quality releases • Own and maintain test documentation, test plans, and test cases • Drive defect triage and resolution discussions with clear and structured communication • Use tools such as JIRA and TestRail/Xray for test management and reporting • Contribute to and gradually take ownership of test automation initiatives • Continuously improve test strategy, processes, and test coverage
Requirements
• Strong understanding of testing methodologies (component, integration, system, E2E testing) • Hands-on experience testing event-driven systems (Kafka) • Experience with data platforms, data pipelines, or integration-heavy systems • Experience working in Agile/Scrum environments • Proficiency with JIRA (defect tracking, workflows) • Experience with test management tools (TestRail, Xray or similar) • Strong analytical skills with ability to trace defects across complex systems • Excellent communication and stakeholder management skills
Nice to Have
• Strong experience in supply chain domain, preferably with freight forwarding systems • Experience or willingness to learn test automation (Java or similar) • Exposure to custom test frameworks • Experience validating large-scale data transformations or mapping specifications
What We’re Looking For
• A curious and investigative mindset with focus on edge cases and defect detection • Ability to analyze business flows and identify technical root causes • Strong ownership and accountability for test quality and delivery • Hands-on approach – comfortable with manual testing today and automation development tomorrow • Proactive attitude, challenge-driven mindset, and focus on continuous improvement
We Offer
• Opportunity to work on complex international data and integration projects • Remote work model with occasional visits to Warsaw office • Collaboration with experienced technical and business teams • Stable long-term cooperation • Private healthcare (LuxMed) • Multisport card



