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React-Based Modernization and Custom UI Kit Development for SaaS Personalization Engine

instinctools.com

Information technology

Business Challenges

The client's core product frontend, built with AngularJS, was facing several critical issues: lack of alignment with the current React tech stack, increasing maintenance complexity due to the end of Google's support for AngularJS, and limited agility in responding to evolving customer needs and design trends. The in-house team lacked the capacity to manage both feature development and legacy modernization concurrently, hindering product evolution and increasing risk.

About the Client

Global SaaS company providing a cutting-edge personalization engine to B2B and B2C companies across various channels and devices.

Project Goals

Modernize the existing AngularJS frontend to a scalable and maintainable React application.
Develop a comprehensive and reusable custom UI kit to ensure design consistency and accelerate development.
Improve frontend performance and responsiveness.
Reduce technical debt and simplify future maintenance.
Empower the in-house team to focus on feature development and innovation.

Functional Requirements

React-based frontend application
Reusable UI components library
Responsive design across all devices
Integration with existing backend systems
Accessibility compliance (WCAG)

Preferred Technologies

React

JavaScript (ES6+)

Vite

Nx (for code collection and management)

Modern CSS (e.g., Styled Components, Emotion)

TypeScript (recommended)

Required Integrations

Existing backend APIs
Authentication systems
Analytics platforms

Non-Functional Requirements

High performance and responsiveness
Scalability to handle increasing user load
Security compliance (e.g., OWASP guidelines)
Accessibility (WCAG 2.1 AA)
Maintainability and testability

Expected Business Impact

This project will result in a more agile and maintainable frontend, enabling faster feature development, reduced technical debt, improved user experience, and increased developer productivity. The reusable UI kit will streamline design processes and ensure consistent branding across the platform. Ultimately, this modernization effort will strengthen the client's competitive advantage and facilitate continued innovation in the SaaS personalization space.