Freelancers using MongoDB in Karachi

Freelancers using MongoDB in KarachiFreelancers using MongoDB in Karachi

Projects People

Karachi, Pakistan

Expert Full-Stack Dev: Perfecting Front & Back-End Solutions

Expert Full-Stack Dev: Perfecting Front & Back-End Solutions

Cover image for Wanderlust - Full Stack Web-App Inspired by Airbnb

Wanderlust - Full Stack Web-App Inspired by Airbnb

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Cover image for Twitter-Inspired Social Hub

Twitter-Inspired Social Hub

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Cover image for Micro-Bank Management System

Micro-Bank Management System

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Cover image for Portfolio

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Muhammad Hassan

proKarachi, Pakistan

Frontend Focused Fullstack Developer: Next.js & AI Agents

$50k+: Earned

11x: Hired

5.0: Rating

171: Followers

Frontend Focused Fullstack Developer: Next.js & AI Agents

Cover image for Web Development Bootcamp 2023 - Certificate

Web Development Bootcamp 2023 - Certificate

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Cover image for Frontend Lead & AI Developer @ Chronicler Labs

Frontend Lead & AI Developer @ Chronicler Labs

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Cover image for Rebuilding NestLink's Real Estate SaaS Platform

Rebuilding NestLink's Real Estate SaaS Platform

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Cover image for Prsoo: Concept to Launch in 4 Weeks

Prsoo: Concept to Launch in 4 Weeks

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Sakhawat Hussain

Karachi, Pakistan

Full stack and Ai powered agents developer

27: Followers

Full stack and Ai powered agents developer

Cover image for Custom E-Commerce Websites Built for Growth I design and dev...

Custom E-Commerce Websites Built for Growth I design and develop high-performance, fully responsive custom e-commerce websites tailored to your brand and business goals. From modern UI/UX and smooth user journeys to secure checkout, product management, and scalable architecture everything is built to convert visitors into customers. Whether you’re launching a new store or upgrading an existing one, I deliver fast, reliable, and future-ready solutions.

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Cover image for Building modern, scalable, and user-friendly web application...

Building modern, scalable, and user-friendly web applications 🚀 I specialize in Full-Stack (MERN) development, creating responsive UIs, secure authentication, Firebase integrations, and performance-optimized solutions. Always focused on clean code, great UX, and real business value.

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Cover image for 💯 Landing Page & Website Development that turns visitors in...

💯 Landing Page & Website Development that turns visitors into clients. For Your Real state & Brands.👇

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Cover image for I will design & develop a high-converting responsive landing...

I will design & develop a high-converting responsive landing page Service 😎 I help startups, brands, and businesses turn visitors into customers with clean, fast, and conversion-focused landing pages. I specialize in modern frontend & MERN-based development, delivering responsive, SEO-ready, and user-friendly landing pages that work perfectly on all devices. ✅ What you’ll get: Fully responsive landing page (mobile, tablet, desktop) Clean & maintainable HTML, CSS, JavaScript / React Fast loading & SEO-friendly structure Modern UI with smooth interactions Well-organized code for future scalability 🎯 Ideal for: Startups & SaaS Gym / fitness brands Personal brands & coaches Business & product launches .

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Suneel Kumar Khatri

Karachi, Pakistan

Full Stack Dev | React · Next.js · Node.js · TypeScript

New to Contra

Full Stack Dev | React · Next.js · Node.js · TypeScript

Cover image for Real-Money Gaming Platform — Backend

Real-Money Gaming Platform — Backend at Scale Engineered the complete backend microservices architecture for Pryze, a real-money competitive gaming platform with live leaderboards, real-time gameplay, and multi-provider payment processing. THE CHALLENGE Build a backend that handles thousands of concurrent players, real-time match updates, secure payment flows, and live leaderboard scoring — all with near-zero downtime. WHAT I BUILT Microservices architecture on Node.js handling 15K+ daily requests Real-time leaderboard system processing 30K+ score updates daily via RabbitMQ + Redis Pub/Sub Redis caching + MongoDB query optimization — 45% faster data retrieval (280ms → 154ms) Payment integrations: EasyPaisa, SimPaisa, PayFast with webhook handling and retry logic WebSocket-based messaging for 10K+ concurrent users AWS infrastructure: EC2, S3, X-Ray, CloudWatch Comprehensive Swagger API docs — cut third-party integration time by 50% RESULTS → 15K+ daily active users supported at 99.9% uptime → 45% faster data retrieval after caching optimization → 35% increase in daily user engagement → 30K+ real-time leaderboard updates processed daily

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Cover image for Bhoomi Restaurant Singapore — Full

Bhoomi Restaurant Singapore — Full Website Build Designed and built a complete restaurant website for Bhoomi by Chef Milind Sovani, an Indian fine dining restaurant in Singapore. WHAT I BUILT Multi-page responsive website with rich animations and transitions Landing page with image carousel and promotional banners Comprehensive menu pages with categorized dishes (meat, vegan, gluten-free, drinks) Chef profile, restaurant story, and ambience gallery Blog and media coverage sections Online ordering and table booking integration E-commerce shop page for merchandise/products THE IMPACT → Fully responsive across all devices → Fast load times optimized for SEO → Complete brand representation online → Integrated ordering and booking workflows

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Cover image for AI Sales Platform — Real-Time

AI Sales Platform — Real-Time UI with 35% Latency Cut Built the frontend for Outbound Labs, an AI-powered platform where autonomous SDR agents prospect, qualify leads, and book meetings without human intervention. THE CHALLENGE Render live AI-generated conversations in real-time where UI latency directly impacts product experience and customer trust. Every millisecond of delay makes the AI feel sluggish. WHAT I BUILT Visual workflow builder with drag-and-drop for designing custom AI conversation flows — no code required Real-time UI components rendering live AI-generated responses Type-safe component library using TypeScript + React for fast MVP iterations Optimized state management with Redux + custom hooks — 25% fewer unnecessary re-renders Code splitting + lazy loading for performance optimization RESULTS → 28% improvement in page load performance → 35% reduction in UI latency for AI response rendering → +20 Lighthouse accessibility score improvement → 25% fewer unnecessary component re-renders

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Cover image for Enterprise Tax SaaS — 5,000+

Enterprise Tax SaaS — 5,000+ Offices, 50K+ Returns Built and maintained a full-stack tax filing solution serving 5,000+ registered tax offices processing 50,000+ annual returns, with scalable Node.js backend and React frontend. THE CHALLENGE Create a reliable, accurate tax calculation engine compliant with FBR regulations, serving thousands of tax professionals during high-pressure filing seasons with zero tolerance for downtime. WHAT I BUILT Complex tax calculation engine implementing FBR regulations across multiple return types (99.7% accuracy) Comprehensive React dashboard with automated computation workflows, client management, and real-time filing tracking Optimized API performance — response times reduced from 450ms to 315ms (30% improvement) Led code reviews for 3-person development team Collaborated with DevOps on deployment workflows RESULTS → 99.8% platform uptime including peak tax season → 40% reduction in processing time via automated workflows → 30% faster API responses → 18% fewer production bugs during critical filing periods

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Muhammad Sufyan

Karachi, Pakistan

Full Stack JavaScript Developer building scalable web apps!

New to Contra

Full Stack JavaScript Developer building scalable web apps!

Cover image for REISEBLOGGEN Travel Blogging Platform |

REISEBLOGGEN Travel Blogging Platform | Next.js I developed REISEBLOGGEN, a Germany-based travel blogging platform built with Next.js featuring a fully custom frontend and CMS system. The website allows the admin to create, edit, delete, and manage blog posts with a structured dashboard, including an archive page for organizing published content. The goal was to provide a clean and distraction-free reading experience while giving the client full control over publishing travel stories. I implemented SEO-friendly structure, fast page performance, and a scalable content architecture to ensure smooth management and long-term growth of the blog platform.

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Cover image for Hospital Appointment Booking System with

Hospital Appointment Booking System with Doctor I developed a hospital appointment booking system for a Germany-based project that allows patients to easily select their preferred doctor, choose available time slots, and schedule appointments online. The platform was designed to simplify the booking process while ensuring a smooth and intuitive user experience. I implemented real-time availability handling, structured scheduling logic, and automated email notifications so both patients and doctors receive instant confirmation of their meetings. The system focuses on reliability, responsive design, and secure data handling to ensure seamless performance across all devices.

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Cover image for THE ZMBA Retail Ecommerce Website

THE ZMBA Retail Ecommerce Website in Svelte I developed THE ZMBA, a retail ecommerce website built with Svelte to establish a strong online presence for the brand. The goal was to create a modern, fast, and visually appealing storefront that reflects the identity of the retail business. I implemented custom product pages, structured collections, responsive design, and a smooth shopping experience to ensure seamless browsing across all devices. The platform was optimized for performance and scalability, providing a clean user interface and a solid foundation for future growth of the brand’s online store.

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Cover image for Shandar Furniture | Custom Ecommerce

Shandar Furniture | Custom Ecommerce Drupal Site I developed Shandar Furniture, a fully custom ecommerce website built on Drupal to meet the client’s specific business requirements. The platform was designed to showcase furniture products with a structured catalog system, custom product pages, secure checkout process, and an easy-to-manage admin panel. I implemented tailored features beyond standard templates to ensure flexibility, scalability, and smooth performance. In addition to development, I handled deployment and hosting on AWS, configuring the environment for reliability, security, and optimized loading speed. The result is a production-ready ecommerce solution built for growth and long-term stability.

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Syeda Zehra Taqvi

Karachi, Pakistan

Full Stack Web Developer - Reliable, Efficient, Team Player

Full Stack Web Developer - Reliable, Efficient, Team Player

Cover image for COMPETITION & PRACTICE PLATFORM

COMPETITION & PRACTICE PLATFORM

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Cover image for COMPETITION & PRACTICE PLATFORM

COMPETITION & PRACTICE PLATFORM

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Cover image for COMPETITION & PRACTICE PLATFORM

COMPETITION & PRACTICE PLATFORM

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Cover image for AI-Powered Recruitment Automation Platform

AI-Powered Recruitment Automation Platform

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Karachi, Pakistan

Expert Full Stack Developer

Expert Full Stack Developer

Cover image for Saas Application Development | Eyecandi

Saas Application Development | Eyecandi

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Cover image for Mode Transportation

Mode Transportation

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Cover image for Modern Custom Frontend Development Using WordPress API | Bodenio

Modern Custom Frontend Development Using WordPress API | Bodenio

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Cover image for Fintech Application Development

Fintech Application Development

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Muhammad Farhan

Karachi, Pakistan

Experienced React Native Developer for Hire

Experienced React Native Developer for Hire

Cover image for Global Trainer

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Cover image for Just Checking In App

Just Checking In App

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Cover image for Brunch Body Fitness

Brunch Body Fitness

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