Case study — Angular · DDD Architecture
Ibercaja - Web Clientes
Context
Ibercaja needed to modernize its client web connected to legacy systems. The challenge was giving access to accounts, cards and investments with the reliability banking regulation and 24/7 uptime demand.
DDD architecture
We adopted Domain-Driven Design with clear layers and reactive Angular. Domain splitting let teams scale and isolated critical business rules from the UI.
DDD — isolated domains, decoupled UI
API integration
Multiple banking APIs orchestrated with fine-grained error handling, retries and loading states. Each flow (balances, movements, cards) exposes consistent states and understandable messages on failure.
Orchestration — predictable states and errors
Security & trust
Hardened auth, session management and encryption in transit. UI conveys security without alarming: clear microcopy, explicit confirmations and double-submit prevention on sensitive ops.
AA accessibility
AA compliance with keyboard navigation, visible focus and reviewed ARIA labelling. Screen-reader tested so banking is usable for everyone, not just the majority.
AA — banking usable via keyboard and reader
Results
Stable, traceable portal ready to evolve without regressions. Solid base that allowed adding new financial products without rewriting existing flows.