At least 5 years of experience in QA/Testing, including senior or lead roles, Proven involvement in at least one full SAP S/4HANA migration or large SAP transformation, Strong knowledge of SAP end-to-end business processes, integration testing, data validation, and cutover activities, Hands-on experience with TOSCA and defect management, Excellent English communication skills (B2/C1) and the ability to influence stakeholders across IT, business, and vendors, Fluent Polish required, Residing in Poland required