Business Analyst - Data Mapping & UAT / QA Lead Location: Hybrid - 1-2 days p/week onsite in Madrid Office Freelance / Autonomo Contract - 12 month term initially SpanishandProfessional English languageskills are needed for this roleThis isn't a typical Business Analyst role.We're looking for someone who sits betweenrequirements, data, testing and defectsand makes sure new country and compliance requirements don't break existing systems when they go live. You'll be the person bringing control, traceability and structure across business teams, IT and external vendors.Reviewing new country / compliance (UBL) requirements Comparing these to how current systems and data work today Mapping data fields across systems to support those changes Turning those gaps into clear test scenarios and test cases Coordinating and running UAT with business users Maintaining clear traceability between requirements, data changes, test cases and defects Working closely with finance, compliance, IT teams and external vendors to get releases safely into productionThis is hands-on, detail-focused work, less workshops, more control.E-invoicing, UBL, compliance or regulatory systems ERP / finance platforms Payments, billing, order management or similar data-heavy systemsData mapping across systems Owning UAT, not supporting it Writing test cases from business and data requirements Strong experience as a BA with heavy involvement in testing and UAT Practical experience with data mapping and traceability JIRA) Ability to work across business, IT and vendors Comfortable operating in both Agile and Waterfall environments This is for someone who is comfortable in spreadsheets, test cases, defect logs and making sure releases go live without issues.You'll take compliance and country requirements, map the data impact, translate that into proper test coverage, and own defects through to production across multiple teams and vendors.