Senior Test Engineer

📍 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.

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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

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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

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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

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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

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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