I will fix customize or add new features using javascript js expert

R
rafi848
R
rafi848
Rafi
fix customize or add new features using javascript js expert
Full Screen
fix customize or add new features using javascript js expert
Full Screen
Full Screen
fix customize or add new features using javascript js expertfix customize or add new features using javascript js expertfix customize or add new features using javascript js expert

About this gig

Need a JS expert to fix, customize, or add new features using JavaScript?

You've found the right developer.


I specialize in writing clean, efficient, and scalable JavaScript code for frontend and backend development. Whether you need to integrate an API, build custom JS functions, or simply fix a bug, Ill handle it with precision and speed.


My JavaScript Services Include:

  1. Fixing JS errors and console issues
  2. Adding or modifying features using pure JS
  3. Frontend interactivity (sliders, popups, forms, modals)
  4. API integration (fetch, JSON, REST APIs)
  5. DOM manipulation & responsive JS functionality
  6. JS optimization and code refactoring
  7. Backend JS scripting (Node.js-based tasks)


Why Choose Me:

  1. Experienced JS expert (frontend + backend)
  2. Fast delivery and quick communication
  3. Custom solutions for every client
  4. Deep understanding of APIs, async/await, and ES6+
  5. 100% satisfaction or full refund


Whether its fixing your JS logic, building a feature from scratch, or optimizing your code Ill make it fast, clean, and production-ready.


Lets make your JavaScript work smarter, not harder!

  • Website type

    • E-Commerce store

  • Programming language

    • HTML & CSS
    • JavaScript
    • TypeScript
    • Tailwind CSS
    • jQuery

  • Website features

    • Payment
    • Social media
    • Shipping
    • Analytics
    • Gallery
    • Booking
    • Calendar
    • Portfolio
    • User Authentication
    • Admin Panel
Respect third-party rights

Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.

Get to know Rafi

Rafi

Full Stack JavaScript Shopify WordPress Developer

5.0(3)
  • FromPakistan
  • Member sinceFeb 2025
  • Avg. response time1 hour
  • Last delivery5 months

  • Languages

    English, Urdu
Hi, I’m Rafi, a skilled Full-Stack Web Developer with 2+ years of experience creating fast, modern, and responsive websites. I specialize in both front-end and back-end development to deliver powerful, user-friendly web solutions tailored to your needs. Services I Offer: ✅ Front-End: HTML5, CSS3, Bootstrap 5, JavaScript ✅ Back-End: PHP, MySQL, Laravel, C++, Python ✅ Shopify & WordPress: Custom themes, store setup, plugins, and integrations ✅ Bug Fixes & Optimization: Speed, performance, and security improvements ✅ Hosting & Domain Setup: Complete launch support Let’s build something great.

My Portfolio

Other Website Development Services I Offer

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