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Development of a Scalable Flutter-Based Mobile Banking Application with Advanced Digital Services
  1. case
  2. Development of a Scalable Flutter-Based Mobile Banking Application with Advanced Digital Services

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Development of a Scalable Flutter-Based Mobile Banking Application with Advanced Digital Services

leancode.co
Financial services
Banking

Challenges in Modern Banking Digitalization

Banks face increasing pressure to accelerate digital transformation due to customer demand for seamless mobile experiences, competition from fintech disruptors, and the need to reduce physical branch dependency. Existing systems lacked scalability, modern UX capabilities, and rapid feature deployment required to meet evolving market expectations.

About the Client

A leading Polish bank seeking to establish leadership in digital banking through innovative mobile solutions.

Strategic Goals for Digital Banking Leadership

  • Create a Flutter-based mobile banking application to unify retail customer services
  • Implement secure, fully digital KYC and account opening processes
  • Deliver personalized financial offerings through a Benefits Club system
  • Establish agile development practices across multi-squad teams
  • Achieve enterprise-grade scalability and compliance with banking regulations

Core Banking Platform Capabilities

  • Fully digital account opening (checking, savings, forex)
  • Biometric authentication and security protocols
  • Real-time KYC verification via mobile devices
  • Personalized product recommendations and Benefits Club offers
  • Multi-currency transfers and investment management
  • Interactive product dashboard with swipeable accordion cards
  • Remote customer support integration

Technology Stack Requirements

Flutter
Dart
Microservices architecture
Agile DevOps tools

System Integration Needs

  • Backend banking systems
  • Third-party KYC verification services
  • Payment gateways
  • Customer analytics platforms
  • Security compliance frameworks (GDPR, PSD2)

Operational Excellence Criteria

  • Support for 1M+ concurrent users
  • Sub-200ms response times for critical transactions
  • End-to-end encryption and biometric security
  • 99.99% system availability SLA
  • Cross-platform consistency across iOS/Android

Anticipated Business Outcomes

Position Credit Agricole Bank Polska as a Polish market leader in mobile banking through enhanced customer retention, 40% faster feature time-to-market, and 70% reduction in physical branch transactions. The solution will enable personalized financial services delivery to 2M+ users while maintaining strict regulatory compliance and operational efficiency.

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