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Modernizing a Sencha ExtJS/Touch Application to Angular (Enterprise UI Rebuild)

Client Description

An US enterprise with a large mission-critical Sencha application facing slower feature delivery, aging UI patterns, and rising maintenance cost—wanted a modern framework foundation and better UX. The goal was to modernize a legacy Sencha ExtJS/Touch front-end into a modern Angular application with UX redesign, theme modernization, and phased rollout—improving performance, maintainability, and long-term hiring viability.

Engagement Model
Offshore - Fixed Price, Support & maintenance
Client Location
USA
Service
Discovery & assessment, UX redesign, phased migration (module-by-module), A/B testing + stabilization, UAT Support
Technologies
Sencha ExtJS, Touch, Angular, PrimeNg, SDLC acceleration with AI using DevRevive-style practices, PlayWright
Target industries
Mortgage, Finance, Loan Processing

Value add

  • Modern UX that improves user engagement and adoption
  • Reduced technical debt and dependency on legacy Sencha tooling
  • Scalable, testable front-end foundation for long-term evolution
  • Faster and more reliable releases through modern CI/CD and quality gates
  • Higher engineering velocity with cleaner architecture and reusable components
  • Improved maintainability and easier hiring with a mainstream Angular stack

Solution highlights

  • Design thinking-led UX redesign + theme modernization for a consistent modern look
  • Phased ExtJS/Touch → Angular migration with a clear modernization roadmap
  • Screen/module inventory and prioritization (high-use first)
  • Shared design system + reusable Angular component library
  • Early establishment of routing + state management patterns
  • Integration continuity: preserved REST APIs, minimized backend disruption
  • Parallel run (legacy + modern) during rollout to reduce operational risk
  • Automated regression testing where feasible + performance baselines and continuous improvement
  • Granular permissions and governance patterns
  • Monthly reporting on progress, risks, performance, and next milestones

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