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Fiverr Pro
English
$
USD
I will develop rest api, integrate notion, open ai, stripe, bug fixes
Muhammad Haris
About this gig
Your app isnt doing what it should? Data wont save, payments fail, or nothing connects properly? Founders, devs, and business owners all run into these backend headaches that slow everything down.
I'm Haris full-stack developer who builds solid backend systems, connects things that dont talk, and fixes bugs others leave behind. I work with Node.js, Express, MongoDB, MySQL, Prisma, Socket.IO, Magento 2, Laravel, PHP, and Python.
Heres how I can help:
Develop custom REST APIs
Secure CRUD, auth/0auth, OTP, roles, file upload, real-time system any custom api
Integrate third-party APIs
Stripe, Notion, OpenAI, TikTok, Instagram, Facebook, Google, Zapier, GHL, crypto APIs, content moderation, location services
Backend logic
Secure API calls (Axios, fetch, OpenAI SDK), JWT/OAuth flows, webhook listeners, CRON jobs, email/SMTP, file import/export, data formatting
Frontend connection
Trigger API calls on click/submit, show loading/errors/success, display results (chats, tables, forms) in your UI
Fix backend issues
Broken endpoints, CORS, deployment bugs, database errors, middleware failures
Let's get your backend working the way it should. Message me now, I'll make it right.
Get to know Muhammad Haris
Muhammad Haris
Full Stack MERN and NextJs Developer
- FromPakistan
- Member sinceMay 2022
- Last delivery8 months
Languages
Urdu, English
Hi, I'm Haris, a Full MERN Stack developer helping businesses, startups, and entrepreneurs build future proof, secure, and responsive web apps. I specialize in real estate platforms, e-commerce stores, SaaS dashboards, CRMs, electronic signature systems, and real-time chat apps. Skilled in JavaScript, TypeScript, React.js, Next.js, Node.js, MongoDB, Prisma, Tailwind CSS, Redux Toolkit, Bootstrap, TanStack, ViteJS, and REST APIs. I build fast, secure, and SEO-optimized solutions that boost performance and growth. Let’s create something amazing — message me to get started!
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FAQ
What do you need from me to get started?
Just send over a clear description of the issue or task, any API keys or documentation (if it's an integration), and access to your codebase or staging environment.
Can you work with existing code or systems?
Yes. I regularly debug and build on top of existing code—whether it's clean or messy. I'll review it first and let you know what's needed.
Do you offer long-term or ongoing support?
I can help with one month on going support after this we will negotiate about this.
