Technical Business Analyst - Core Banking Guernsey

The Technical Business Analyst role will be based on-site in Guernsey and will support the core banking transformation, new product launches, regulatory change, and integration with payments, digital channels, and downstream systems. Business and Domain Analysis Elicit, analyse, and document business requirements related to core banking domains. Translate regulatory, operational, and product requirements into clear functional specifications. Act as a subject matter expert on banking processes, product behaviour, and lifecycle events. Technical Analysis and Solution Design Convert business requirements into detailed technical requirements, including: o API contracts (REST/JSON, event schemas) o Data models and mappings o Integration flows and sequencing Work closely with solution architects to: o Validate architectural decisions o Ensure alignment with target-state core banking architecture Support design of integrations between: o Core banking systems o Payment engines o Digital channels and middleware o Data platforms and regulatory reporting systems Delivery and Agile Collaboration Collaborate with Product Owners to refine epics, features, and user stories. Write clear, testable user stories with acceptance criteria that reflect both business and technical needs. Support sprint ceremonies (backlog refinement, sprint planning, demos). Clarify requirements for development teams during implementation and testing phases Data and Migration Support Support data ..... full job details .....