Technical Business Analyst (A) Core Banking System Integration

Please note that due to applicable Swiss legislation, we can only consider applications from Swiss citizens, EU citizens, and individuals with a valid work permit.

Remote work from abroad is not possible.

Tasks

• Define and validate interface requirements, support solution design and testing, and ensure seamless connectivity between systems
• Analyse and document end-to-end interface requirements between the Securities Finance Trading platform and the new Core Banking system
• Specify data mappings, transformation rules, and message formats to enable automated trade and cash flow processing
• Work closely with developers and solution architects to ensure accurate and timely implementation of system interfaces
• Produce high-quality functional documentation, including business requirements, data field definitions, and user stories
• Support planning and execution of testing activities (SIT/UAT), including test case preparation, execution tracking, and defect triage
• Participate in project meetings, progress reviews, and technical walkthroughs to maintain alignment with programme objectives
• Coordinate with internal stakeholders to validate assumptions, clarify requirements, and manage dependencies impacting interface delivery

• Proven experience as a Business Analyst in system integration or banking technology projects
• Strong understanding of trading platforms and post-trade workflows, especially in securities finance (e.g., lending, borrowing, and repo)
• Practical experience in data mapping, message design, and working with APIs or message queues
• Ability to produce clear, well-structured documentation for both technical and business audiences
• Familiarity with Agile methodologies and tools such as JIRA and Confluence
• Prior involvement in core banking implementations or platform transitions within capital markets is a strong plus
• Comfortable working in complex system landscapes with both batch and real-time interfaces
• Fluency in English and German

• Excellent communication and stakeholder management skills across both technical and business functions
• Self-driven, detail-oriented and able to operate effectively in a delivery-focused role