We are modernizing an existing business-critical web application by upgrading a legacy PHP backend and rebuilding the frontend using modern React technologies. The project focuses on improving system maintainability, performance, and user experience while preserving existing business logic and data integrity.

Responsibilities

Backend (PHP):

Analyze and upgrade a legacy PHP codebase to improve maintainability, performance, and security

Refactor existing business logic while ensuring functional parity with current system behavior

Design, implement, and enhance RESTful (or similar) API endpoints for frontend consumption

Improve backend architecture, code structure, and separation of concerns

Optimize database interactions and overall backend performance

Implement logging, error handling, and basic monitoring where needed

Write and maintain unit and integration tests for backend components

Frontend (React):

Modernize the user experience and interface based on existing functionality and UX improvements

Rebuild existing application screens using React and modern frontend practices

Integrate React components with the new or enhanced backend API

Ensure responsive design and cross-browser compatibility

Manage application state and data flow efficiently

Collaborate with backend development to align API contracts and data models

Maintain clean, reusable, and well-documented frontend code

Skills

Must have

Backend

Strong experience with PHP (working with legacy codebases is a must)

Experience with PHP frameworks (e.g., Laravel, Symfony, or similar) or custom PHP architectures

Solid understanding of REST API design and backend-frontend integration

Experience with SQL databases (MySQL/PostgreSQL or similar)

Familiarity with refactoring techniques and incremental modernization

Knowledge of security best practices in PHP applications

Frontend

Strong experience with React (functional components, hooks)

Experience with modern JavaScript (ES6+) and frontend build tools

Familiarity with API integration (REST, JSON)

Experience with UI/UX modernization of existing applications

Knowledge of responsive design and CSS frameworks or component libraries

Nice to have

Experience working on modernization or migration projects

Full-stack background with strong backend and frontend understanding

Experience with testing frameworks (PHPUnit, Jest, etc.)

Familiarity with CI/CD pipelines

Ability to work in an iterative, collaborative environment with minimal documentation