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 an…