Contract: B2BLocation: Remote within PolandProject: Development and maintenance of backend services and internal systems for banking products and processes for the leading Polish bankKey Technologies Payments & cards: SIBS FPS, MB/Multibanco, MBWay, Mastercard (co-badge) API & integrations: REST, JSON/XML, data mapping Process modeling: BPMN, UML Requirements tooling: Jira, Confluence, Miro Project OverviewJoin our Rite NRG team as a Business System Analyst, supporting a long-term initiative in the payments and cards issuing domain for a leading banking client.You will work at the crossroads of business and IT: translate business needs into system-level requirements, analyse APIs and integrations, model processes and data flows, and closely support development teams in delivering end-to-end solutions.Responsibilities Gather, analyse, and clarify business and system requirements for SIBS FPS integration, co-badge card issuing, and MBWay services. Translate business needs into system specifications, User Stories, Use Cases, acceptance criteria, Interface contracts, data mappings, and integration scenarios. Document payment and card-related processes using BPMN, flowcharts, and UML diagrams. Analyse APIs, data structures, and system interactions between internal banking systems and the SIBS ecosystem. Work closely with Architects and Developers to shape the solution design and verify technical feasibility. Maintain and refine the product backlog, support refinements, and participate in workshops with stakeholders in Poland and Portugal. Support test scope definition: help define test scenarios, clarify expected behaviours, and support defect analysis from an analytical/functional perspective. Ensure that documentation is up to date and understandable for both business and technical audiences Requirements 4+ years as a Business System Analyst in IT (banking/payments preferred). Understanding of payments, card issuing, and system integrations (domain experience strongly preferred). Knowledge of system integrations, APIs (REST, JSON/XML), and data mapping from an analytical perspective. Experience with User Stories, Use Cases, BPMN, and API/integration analysis. Ability to read and analyse API documentation and understand how backend services communicate. Strong analytical skills and ability to work across business and technical teams. Experience in Agile environments. Experience with SIBS, MB, MBWay - a strong plus, not mandatory. Fluency in Polish and an advanced level of English (B2/C1)  Why join us?Rite NRG is a vibrant outsourcing technology company driven by the Right People. We are dedicated to empowering businesses through innovative software solutions. We focus on building strong partnerships and providing top-notch software solutions that drive real business growth. Our business model revolves around collaboration and delivering impactful results for our clients.Join us, and be part of a team where great minds, Right Energy, and strong partnerships come together to shape the future of technology! Stable, long-term, full-time collaboration. Remote work within Poland and flexible working hours. High engineering culture with a focus on growth and learning. Multinational teams. Benefits: Private medical care, Multisport card, and workation (work for a week from Barcelona or elsewhere).