We are looking for a Client-Facing Functional Analyst to join a high-impact regulatory and tax transformation initiative within a leading international banking environment in Luxembourg. Operating at the heart of the Payment Systems domain, you will play a key role in shaping and modernizing critical banking processes while collaborating with business and technology stakeholders across multiple countries and disciplines. This is an excellent opportunity for someone who combines strong analytical capabilities with a deep understanding of banking payments and enjoys working in a dynamic, client-oriented environment. Requirements Functional & Banking Expertise Strong knowledge of banking payment systems: SEPA Credit Transfers Direct Debits Payment workflows Good understanding of banking operations across front, middle, and back office Familiarity with banking regulations and compliance constraints within payment environments Technical & Methodological Skills Proven experience writing functional specifications and business documentation Comfortable working with Agile/Scrum methodologies and/or V-Model project delivery Strong command of: JIRA Confluence Excel PowerPoint Experience with process/modelling tools such as BPMN or UML Ability to understand and analyse complex workflows, interfaces, and data flows Good SQL knowledge for analysis and validation activities