# React Developer

Paraline Tech builds with React: web applications in React and TypeScript, mobile apps in React Native, and component libraries that keep a product consistent as it grows.

- **Provider:** Paraline Tech
- **Page:** https://paralinetech.com/expertise/react-developer

## What this covers

- React web applications in TypeScript
- React Native and Expo mobile apps
- Figma to React conversion
- Design systems and shared component libraries
- State and server-data management
- Accessibility to WCAG AA
- Upgrading and refactoring older React codebases
- Moving a React single-page app to Next.js

## Tools

React, TypeScript, Next.js, React Native, Expo, Vite, TanStack Query, Tailwind CSS, shadcn/ui

## Work that shows it

- [GoEx: Courier Operations Platform](https://paralinetech.com/work/goex): Shipment tracking and operations platform for a Pakistani courier, built from scratch: admin, merchant and rider apps. COD from day one, city-to-city zone pricing, local SMS, bulk and single booking, rider PWA for budget Android phones.
- [Order-to-Shipment AI](https://paralinetech.com/work/whatsapp-courier-automation): Turns messy WhatsApp order messages from shopkeepers into validated courier bookings: AI extraction, validation, booking, then tracking and labels. Multi-tenant, merchants bring their own courier API keys (Leopards and GoEx).
- [My Expense Flow: Expense Splitting App](https://paralinetech.com/work/my-expense-flow): Ad-free expense splitter with groups, live shared balances and unequal splits (exact, percentage, shares).
- [Forever RWA: Next.js + CRM](https://paralinetech.com/work/forever-rwa): Next.js marketing platform with ActiveCampaign CRM integration and Git-based continuous deployment to cPanel.
- [Teachora.ai: Lecture & Substitution Management](https://paralinetech.com/work/teachora): Multi-campus lecture and teacher-substitution management for schools. When a teacher is on leave, Teachora builds the cover board and assigns free teachers within fair workload limits.
- [Online Ai learning with Punjab Board (PCTB)](https://paralinetech.com/work/pctb-ai-learning): A kid-friendly AI tutor for Punjab Board (PCTB) Classes 4–10. Students pick a class, subject and chapter; the tutor explains in everyday Roman Urdu, grounded in the official textbook, reads answers aloud and solves a photographed homework question.

## Where the experience comes from

- 2017–21: **mobileLIVE.** React and Angular for enterprise clients, to WCAG AA.
- 2021–22: **Nextbridge.** Senior frontend: React, Angular and Ionic apps.
- 2022–23: **Retailo.** React and React Native design systems for a commerce platform.

## Common questions

**What does a React developer do?**

A React developer builds user interfaces from reusable components using React, the JavaScript library. The same skills carry over to mobile apps through React Native.

**What is the difference between React and Next.js?**

React is the library for building interfaces. Next.js is a framework built on React that adds server rendering, routing and caching. A content site or a product that needs search traffic is usually better in Next.js.

**Does Paraline Tech build mobile apps with React?**

Yes, with React Native and Expo, which share most of their code between iOS and Android.