You will get React.js & Next.js API Integration | REST API | Frontend Development


Project details
I will integrate your React or Next.js application with custom APIs, backend services, third-party platforms, and headless CMS solutions. Whether you have a Postman collection, Swagger/OpenAPI documentation, or an existing backend, I’ll connect everything into a reliable and production-ready frontend.
I can integrate REST and GraphQL APIs, including APIs built with Node.js/Express, Laravel, FastAPI, Next.js, and other backend technologies.
I also handle AI and third-party integrations such as OpenAI, Gemini, Claude, payment gateways, authentication services, Contentful, Strapi, and other external APIs.
You’ll get clean API integration with authentication, error handling, loading states, data validation, pagination, filtering, file uploads, webhooks, and responsive UI where required.
I’ll test the complete integration, resolve issues, optimize the implementation, and refine everything based on your feedback before final delivery.
Have an API that needs to be connected to your React or Next.js application? Send me your Postman collection, Swagger documentation, or project details and let’s get your integration started
I can integrate REST and GraphQL APIs, including APIs built with Node.js/Express, Laravel, FastAPI, Next.js, and other backend technologies.
I also handle AI and third-party integrations such as OpenAI, Gemini, Claude, payment gateways, authentication services, Contentful, Strapi, and other external APIs.
You’ll get clean API integration with authentication, error handling, loading states, data validation, pagination, filtering, file uploads, webhooks, and responsive UI where required.
I’ll test the complete integration, resolve issues, optimize the implementation, and refine everything based on your feedback before final delivery.
Have an API that needs to be connected to your React or Next.js application? Send me your Postman collection, Swagger documentation, or project details and let’s get your integration started
Programming Languages
PHP, HTML & CSS, JavaScriptCoding Expertise
Cross Browser & Device Compatibility, PSD to HTML, Performance OptimizationWhat's included
| Service Tiers |
Starter
$5
|
Standard
$10
|
Advanced
$15
|
|---|---|---|---|
| Delivery Time | 1 day | 2 days | 3 days |
Number of Revisions | Unlimited | Unlimited | Unlimited |
Number of Pages | 2 | 4 | 6 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code | - |
Optional add-ons
You can add these on the next page.
Additional Page
+$5Frequently asked questions
About Muhammad
Senior Frontend Engineer | React.js, Next.js, HTML & Tailwind CSS
Karachi, Pakistan - 5:41 am local time
Are you looking for a React developer who builds fast, scalable, and high-quality web applications?
I'm Adil, a Senior Frontend Engineer with 7+ years of experience in React.js, Next.js, and TypeScript. I help startups, SaaS companies, and agencies build modern web applications that are fast, responsive, and easy to maintain.
Whether you need:
React.js development
Next.js development
TypeScript development
Figma to React/Next.js conversion
Frontend modernization
I deliver production-ready solutions—not just prototypes.
Why Work With Me?
I focus on business results, not just writing code.
I convert Figma, Adobe XD, and PSD designs into pixel-perfect websites.
I communicate clearly with regular progress updates.
I write clean, scalable, and maintainable code.
I balance development speed with long-term code quality.
Skills
Frontend, React.js, Next.js, TypeScript, JavaScript (ES6+), React Hooks, Context API, Server Components, App Router, Redux Toolkit, Zustand, React Query, SWR, Recoil, Tailwind CSS, Material UI, Chakra UI, Styled Components, Shadcn/UI, Radix UI, CSS Modules, SCSS, Ant Design, Figma to React, Figma to Next.js, PSD to HTML, Adobe XD to React, Storybook, Design Systems, REST APIs, GraphQL, Apollo Client, Axios, Firebase, Supabase, Contentful, Sanity, Strapi, WebSockets, Core Web Vitals, Lighthouse Optimization, Accessibility (WCAG), Technical SEO, Lazy Loading, Code Splitting, Image Optimization, Jest, React Testing Library, Cypress, Playwright, Git, GitHub, GitLab, Vercel, Netlify, Docker, Vite, Webpack, Turborepo, Nx, React & Next.js Development.
- Build scalable web applications, MVPs, SaaS products, and enterprise solutions.
- SaaS Dashboard Development
- Develop modern admin panels, analytics dashboards, and internal tools.
- Figma to React / Next.js
- Convert designs into responsive, production-ready applications.
- Performance Optimization
- Improve loading speed, Lighthouse scores, and Core Web Vitals.
Design Systems
Build reusable component libraries with Storybook and TypeScript.
Landing Pages
Develop SEO-friendly, fast, high-converting landing pages.
Frontend Migration
Upgrade legacy applications to React, Next.js, and TypeScript.
API Integration
Integrate REST APIs, GraphQL, payment gateways, authentication, analytics, and third-party services.
Accessibility
Implement WCAG 2.1 AA accessibility standards.
Technologies
Languages
TypeScript
JavaScript
HTML5
CSS3
Frameworks
React.js
Next.js
Node.js (Basics)
Styling
Tailwind CSS
Material UI
Styled Components
SCSS
Shadcn/UI
Testing
Jest
Cypress
Playwright
React Testing Library
Backend
REST
GraphQL
Firebase
Supabase
Contentful
Sanity
Strapi
Deployment
Vercel
Netlify
GitHub Actions
Docker
Project Tools
Jira
Linear
Notion
Slack
GitHub
GitLab
My Process
1. Discovery
Understand your business goals, users, and project requirements.
2. Planning
Create the application architecture and development plan.
3. Development
Build features in short sprints with regular updates.
4. Review
Gather feedback and refine the product.
5. Testing
Perform browser testing, accessibility checks, and performance optimization.
6. Delivery
Provide clean code, documentation, and post-launch support.
Industries
SaaS
E-commerce
FinTech
HealthTech
EdTech
Marketing Agencies
Enterprise Applications
Results
Reduced page load times by 62% through Next.js migration.
Built a reusable Storybook design system with 120+ components.
Delivered a Figma-to-Next.js website with a 98 Lighthouse score.
Developed SaaS dashboards supporting 50,000+ monthly users.
Migrated legacy applications from jQuery to React and TypeScript.
Who I Work With
I work best with:
Startups building MVPs
SaaS companies
Digital agencies
Product teams
Businesses that value clean code and long-term collaboration
Not the Right Fit If
You're only looking for the cheapest developer.
You need a full-stack developer to manage backend infrastructure.
You need complete UI/UX design from scratch.
FAQs
Do you offer fixed-price projects?
Yes. I work with both fixed-price and hourly contracts.
Can you work on an existing codebase?
Absolutely.
Do you provide post-launch support?
Yes.
Can you sign an NDA?
Yes.
Let's Work Together
If you need a React.js, Next.js, or TypeScript developer who delivers clean, scalable, and high-performance applications, I'd love to help.
Next Steps
Send me a brief description of your project.
I'll review your requirements and respond with the next steps.
We'll schedule a discovery call if we're a good fit.
I take on a limited number of projects to ensure every client receives my full attention.
Let's build your next great product.
Steps for completing your project
After purchasing the project, send requirements so Muhammad can start the project.
Delivery time starts when Muhammad receives requirements from you.
Muhammad works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements & API Review
I review your React/Next.js application, API documentation, Postman collection, Swagger/OpenAPI files, backend details, authentication requirements, and integration goals.
API Integration & Development
I connect the required REST or GraphQL APIs and implement authentication, API requests, dynamic data, CRUD operations, forms, pagination, filtering, file uploads, and third-party services as required.