Job Description: We are looking for a Master Data Tax Specialist responsible for managing and governing supplier and customer registration data, ensuring standardization, consistency, and integrity of information in compliance with current tax and legal regulations. Key Responsibilities: * Manage and maintain supplier and customer registrations, ensuring data integrity and standardization; * Analyze and validate registration requests, verifying mandatory documents (CNPJ/CPF, state and municipal tax registrations, certificates, etc.); * Ensure correct tax classification of items and companies (NCM, CFOP, CNAE, tax regimes); * Validate and update bank account information based on supporting documentation and internal controls; * Ensure information complies with tax legislation and the company’s internal policies; * Organize tasks and prioritize activities while maintaining quality and meeting deadlines; * Collaborate with other departments (Tax, Accounting, Procurement, Legal, and Finance) to ensure process consistency; * Stay up-to-date on tax legislation, internal procedures, and emerging technological trends that enhance registration and master data management. Requirements: * Bachelor’s degree in Accounting, Business Administration, Economics, or Law; * Solid experience in tax registration and master data management (Master Data); * Proficiency in tax software, ERP systems, and data analysis tools; * Strong organizational skills, attention to detail, and ability to manage multiple tasks; * Adaptability to change, with continuous learning about new processes and legislation; * Teamwork skills and ability to foster a collaborative environment. Preferred Qualifications: * Experience in the financial sector, especially within financial institutions or fintechs; * Advanced expertise in ERP systems (SAP, TOTVS, Oracle) and analytical tools; * Advanced Excel skills (pivot tables, complex formulas) and experience in process automation initiatives; * Knowledge of LGPD and information security, ensuring compliance and sound data governance practices. Work Location: Hybrid model: Office in São Paulo, SP Learn more about W1: w1\.com.br/w1\-consultoria Join the W1 Team and build your career! 2512070202191851145