Freelance Fullstack Engineers in KarachiFreelance Fullstack Engineers in Karachi
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Muhammad Hassan's avatar
Muhammad Hassan
proKarachi, Pakistan
Full-Stack & AI Developer | Next.js, AI Agents
$50k+
Earned
11x
Hired
5.0
Rating
188
Followers
Full-Stack & AI Developer | Next.js, AI Agents
Cover image for Rebuilding NestLink's Real Estate SaaS Platform
Rebuilding NestLink's Real Estate SaaS Platform
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35
Cover image for Prsoo: Concept to Launch in 4 Weeks
Prsoo: Concept to Launch in 4 Weeks
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26
Cover image for Frontend Lead & AI Developer @ Chronicler Labs
Frontend Lead & AI Developer @ Chronicler Labs
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157
Cover image for Advanced RAG-Based LegalTech Chatbot for International Courts
Advanced RAG-Based LegalTech Chatbot for International Courts
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64
Fullstack Engineer(19)
Hunain Haider's avatar
Hunain Haider
Karachi, Pakistan
Full-Stack Developer & Digital Consultant
5.0
Rating
3
Followers
Full-Stack Developer & Digital Consultant
Cover image for Great software doesn't start with
Great software doesn't start with code. It starts with understanding the problem. One of the biggest lessons I've learned as a developer is this: The quality of your solution depends on the quality of your questions. Before writing a single line of code, I ask: 👤 Who is the user? 🎯 What problem are they trying to solve? ⏱️ Which step is slowing them down? 💡 How can we make the experience simpler? Technology is only a tool. Real value comes from solving the right problem in the simplest way possible. A modern UI is great. Clean architecture is essential. Fast performance matters. But if the product doesn't improve someone's workflow or solve a real business challenge, none of it creates lasting impact. The best digital products don't just look good. They make work easier, decisions faster, and businesses more efficient. I'm curious... What's one app or website you use almost every day because it simply works so well? 👇 Share it in the comments—I’m always interested in learning from great product experiences.
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6
Cover image for The biggest difference between a
The biggest difference between a good developer and a great one? It's not the programming language. It's the questions they ask before writing the first line of code. Before I start building any web application or mobile app, I always ask: 👤 Who is the user? 🎯 What problem are they trying to solve? ⏳ Which task wastes the most time? 💡 How can we make their experience simpler? Because technology alone doesn't create value. The right solution does. A beautiful interface is important. Clean code is important. Scalable architecture is important. But none of them matter if the product doesn't solve a real business problem. The best software feels effortless. It removes friction, saves time, and helps people achieve their goals without thinking about the technology behind it. That's the kind of digital experience every product should aim for. I'm curious... What's one app or website you use regularly because it simply feels right? 👇 Drop its name in the comments. I'd love to know what makes it stand out
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20
Cover image for Good software isn't just about
Good software isn't just about writing code. It's about creating experiences that people enjoy using. Whether it's a web platform, an internal dashboard, or a mobile application, the goal remains the same: Build products that are intuitive, reliable, and designed around real user needs. The best digital products combine: 📱 Great mobile experiences 💻 Clean web interfaces ⚡ Fast performance 🎯 Clear user journeys 🔄 Scalable architecture Technology changes quickly. Good user experience doesn't. What's one application you use regularly because it simply feels great to use? 👇 Share it below.
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57
Cover image for Most businesses don't need more
Most businesses don't need more features. They need more clarity. I've seen teams spend weeks discussing: ❌ Which framework to use ❌ Which database is better ❌ Which feature to build next While ignoring the most important question: 👉 What outcome are we trying to achieve? A fast application is great. A beautiful dashboard is great. A modern tech stack is great. But none of those matter if the product doesn't solve a meaningful problem. The strongest products are built around: ✅ Clear Goals ✅ Clear Workflows ✅ Clear Outcomes Before starting any project, I always ask: "If this project succeeds, what will be different six months from now?" That answer usually reveals what actually matters. Technology should support the business. Not become the business. I'm curious: What's more important when building a product? 🅰️ More Features 🅱️ Better User Experience 🅲 Clear Business Results Drop A, B, or C in the comments 👇
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45
Fullstack Engineer(15)
Abdul Malik Lakho's avatar
Abdul Malik Lakho
Karachi, Pakistan
AI Developer · Chatbots · Voice Agents · Automation
New to Contra
AI Developer · Chatbots · Voice Agents · Automation
Cover image for I build AI that makes
I build AI that makes you money while you sleep. Three things I shipped recently: 🏆 Prolistem.com (http://Prolistem.com) — AI chatbot that closes $590 sales at 3AM for a US supplement company serving customers in 30 countries. Zero human involvement after delivery. 🚀 Selzara.com (http://Selzara.com) — Complete AI SaaS platform for Amazon sellers. 457 daily organic visitors. Zero paid ads. Built solo from scratch. 🇨🇩 MAONI.cd (http://MAONI.cd) — Presidential government platform for the Democratic Republic of Congo. National scale. Military-grade security. I offer 3 services: 🤖 AI Chatbot — $350 · 4 days 📞 AI Voice Agent — $400 · 5 days ⚡ Business Automation — $300 · 3-5 days Every project is a live working product with a real URL on delivery day. Not a demo. Not a prototype. Real. Available for immediate start at $35/hr or fixed price per project.
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24
Cover image for Presidential-grade national civic consultation platform built
Presidential-grade national civic consultation platform built for the Democratic Republic of Congo constitutional reform process. Delivered 5 complete versions including military-grade security architecture, multi-user role management, AI proposal analyzer powered by Claude API, sentiment analysis, and real-time data processing at national scale.
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27
Cover image for Built a complete 10-module AI
Built a complete 10-module AI SaaS platform for Amazon sellers from scratch. Features include PPC analyzer, profit calculator, inventory alerts, competitor tracker, and AI listing optimizer powered by Claude API. 457 daily organic visitors with zero paid ads. Live in production at selzara.com (http://selzara.com) Stack: Python, FastAPI, Claude API, Supabase, React, Tailwind, Nginx, Ubuntu VPS
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36
Cover image for AutoTint Pro — Automotive Business
AutoTint Pro — Automotive Business Website USA My role. Full Stack Web Developer — Complete website delivery Project description. Built a complete professional website for AutoTint Pro a US based automotive window tinting business. Features include a 50 plus project gallery with optimized images detailed service pages explaining ceramic carbon and dyed film options comparison tables and a user friendly booking system. Designed to increase online bookings and showcase the company's portfolio of completed work. Delivered with full ownership to the US client with fast loading performance and mobile responsive design.
0
32
Fullstack Engineer(4)
Muhammad Sameer Uddin Shaikh's avatar
Muhammad Sameer Uddin Shaikh
Karachi, Pakistan
Full-Stack Web Developer | WebFlow | WordPress
5.0
Rating
4
Followers
Full-Stack Web Developer | WebFlow | WordPress
Cover image for Customized Themes and Plugins for WordPress
Customized Themes and Plugins for WordPress
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14
Cover image for Custom Design E-commerce/Shopify Store
Custom Design E-commerce/Shopify Store
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13
Cover image for Custom Website Design from Figma
Custom Website Design from Figma
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14
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Fullstack Engineer(3)
Muhammad Adeen Khan's avatar
Muhammad Adeen Khan
Karachi, Pakistan
Full -Stack Engineer
New to Contra
Full -Stack Engineer
Cover image for The AI Employee Control Center
The AI Employee Control Center is a full-stack system designed to automate core business operations through an intelligent, human-assisted workflow. It acts as a digital employee that manages communication, financial processes, and content generation while keeping the user in control of critical decisions. The platform continuously monitors business channels like email, WhatsApp, and social media, automatically generating responses, invoices, and content drafts. These actions are reviewed through a centralized dashboard, enabling one-click approvals. By integrating with ERP systems and leveraging AI-driven automation, it streamlines operations, reduces manual workload, and enhances overall business efficiency.
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53
Cover image for The Car Detailing Booking System
The Car Detailing Booking System is a full-stack platform built to streamline booking and customer management for car detailing businesses. It replaces manual scheduling and communication with an automated system for handling appointments, payments, and client interactions. The platform enables seamless booking with advance payments, real-time slot selection, and automated WhatsApp notifications for confirmations, reminders, and service updates. It improves operational efficiency, reduces missed bookings, and enhances customer experience through a centralized admin dashboard.
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Cover image for The Crowned by William website
The Crowned by William website is a luxury jewelry brand showcase designed to elevate digital presence and attract high-end clients. It transforms a standard website into a cinematic, premium experience that highlights jewelry collections, brand identity, and exclusivity. The platform features elegant visuals, smooth navigation, and a VIP inquiry system, allowing potential clients to explore custom jewelry services and connect directly with the brand. It enhances engagement, strengthens brand perception, and creates a high-conversion digital storefront.
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85
Cover image for The School Management System is
The School Management System is a full-stack platform designed to digitize and streamline daily school operations. It replaces manual record-keeping with a centralized system for managing student data, fee collection, and administrative workflows. The system enables secure student registration, automated fee management with receipt generation, and real-time access to records through an intuitive admin dashboard. Role-based access ensures that administrators and staff can efficiently manage data while maintaining security and control. Built with a scalable architecture, the platform improves operational efficiency, reduces errors, and provides better visibility into financial and academic processes, making it suitable for modern educational institutions transitioning to digital systems.
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85
Fullstack Engineer(4)
Nawaz Ur Rehman's avatar
Nawaz Ur Rehman
Karachi, Pakistan
Fullstack Engineer | Web3, Blockchain & AI Developer
New to Contra
Fullstack Engineer | Web3, Blockchain & AI Developer
Cover image for Realtor.com (http://Realtor.com) – Real Estate
Realtor.com (http://Realtor.com) – Real Estate Marketplace Platform Overview Realtor.com (http://Realtor.com) is one of the largest online real estate marketplaces, helping millions of users search for homes, apartments, rentals, and real estate services across the United States. The platform provides property listings, market insights, mortgage tools, and agent connections for buyers, sellers, and renters. My Role Full-Stack Developer Responsibilities • Frontend development and responsive UI implementation • Property search and filtering experiences • Real estate listing presentation • API integrations and data management • Performance optimization • Mobile responsiveness • User experience enhancements • Interactive map and location-based features Key Features ✓ Property search and discovery ✓ Advanced filtering system ✓ Interactive map search ✓ Property detail pages ✓ User authentication ✓ Saved searches and favorites ✓ Agent contact workflows ✓ Mortgage and home-buying tools ✓ Responsive web experience Challenges Solved Handling large volumes of property listings Optimizing search performance Improving property discovery workflows Creating mobile-first user experiences Delivering scalable and maintainable frontend architecture Technologies React.js • Next.js • TypeScript • JavaScript • Node.js • REST APIs • GraphQL • Google Maps API • Responsive Design Results Improved property discovery experience Faster search and filtering performance Enhanced mobile engagement Better lead generation workflows Scalable real estate platform architecture Project URL https://www.realtor.com
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19
Cover image for TeacherTube – Educational Video Platform Overview Contributed
TeacherTube – Educational Video Platform Overview Contributed to the development and enhancement of TeacherTube, an educational video platform that helps students, teachers, and schools discover and consume learning-focused video content across subjects such as Math, Science, History, Language Arts, and Educational Songs. My Role Full-Stack Developer Responsibilities Developed responsive user interfaces for content discovery and navigation. Improved video browsing and category-based filtering. Enhanced search functionality for educational content. Optimized platform performance and user experience. Implemented responsive layouts for desktop and mobile devices. Integrated APIs and supported content management workflows. Key Features Educational video streaming Subject-based categorization Search and filtering system User authentication Content management Responsive design Mobile-friendly experience Results Improved content discoverability Better user engagement and navigation Enhanced performance across devices Scalable and maintainable codebase Technologies React.js, JavaScript, TypeScript, Node.js, REST APIs, HTML, CSS, Responsive Design Project Link https://www.teachertube.com
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Cover image for At BlockSynk Technology, we design
At BlockSynk Technology, we design and develop enterprise-grade cryptocurrency exchange platforms — end-to-end, from smart contracts to polished mobile & web interfaces. This project showcases our capability to build platforms similar to Bitrue — a complete crypto ecosystem covering spot trading, futures, staking, copy trading, DeFi lending, and token launchpads. ────────────────────────────── 🔷 WHAT WE BUILD ────────────────────────────── 💱 Spot & Futures Trading Engine High-performance trading interfaces with real-time order books, candlestick charts, market/limit/stop orders, and USDT, COIN-M & USDC-margined futures — all powered by WebSocket for zero-lag execution. 📊 Copy Trading System Social trading infrastructure where users can follow top traders, automatically mirror positions, and share in profits — with full performance dashboards and risk controls. 🏦 DeFi Earn & Staking Flexible staking pools, Power Piggy-style yield products, BTR lockup mechanisms, and auto-invest bots delivering competitive APR across multiple tokens. 💳 Crypto Loans Crypto-backed lending system where users pledge collateral (BTC, ETH, XRP) to borrow stablecoins — with liquidation engines, interest calculation, and real-time LTV monitoring. 🚀 Token Launchpad IDO/IEO launchpad for new token listings with whitelist management, vesting schedules, distribution contracts, and fair launch mechanics. 🖼 NFT & Alpha Trading Integrated NFT marketplace and Alpha trading interface giving users direct Web3 access from within the exchange — wallet connect, minting, and secondary market trading. 🤖 AI-Powered Analytics Machine learning models for price prediction, sentiment analysis, smart portfolio rebalancing suggestions, and AI-driven copy trading performance scoring. 📱 Mobile App (iOS & Android) Full-featured React Native mobile app with biometric login, real-time push notifications, portfolio tracking, one-tap trading, and seamless wallet integration. ────────────────────────────── ⚙️ TECH STACK ────────────────────────────── Frontend: React.js / Next.js, React Native (Mobile), Flutter Backend: Node.js, Python, FastAPI, WebSocket, Redis Blockchain: Solidity, Ethers.js, Web3.js, Hardhat, EVM Chains Database: PostgreSQL, MongoDB, Redis (caching) AI/ML: Python, TensorFlow, OpenAI API, LangChain Infrastructure: AWS, Docker, Kubernetes, CI/CD, Nginx Security: JWT, 2FA, biometric auth, smart contract audits ────────────────────────────── 💰 SERVICES & PRICING ────────────────────────────── ✅ Full Exchange Platform Build → Custom Quote (from $15,000) ✅ Trading Engine Only → From $5,000 ✅ Smart Contracts & DeFi → From $3,000 ✅ Mobile App (iOS + Android) → From $3,000 ✅ AI Integration & Analytics → From $2,000 ✅ Individual Features/Modules → $25–$50/hr ────────────────────────────── 📬 CONTACT ────────────────────────────── 👤 Nawaz Ur Rehman 🏢 BlockSynk Technology 💼 Available for full builds, modules, or ongoing development 📩 Open to discuss your project scope today
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Cover image for Enterprise AI Agent & Workflow
Enterprise AI Agent & Workflow Automation Platform Overview Designed and developed an AI-powered automation platform that helps businesses streamline operations through intelligent agents, workflow automation, and AI-driven decision-making. The solution enables teams to automate repetitive tasks, process large volumes of data, retrieve knowledge from documents, and integrate AI directly into business workflows. What I Built Custom AI agents powered by OpenAI and LLM technologies Workflow automation systems for business operations RAG (Retrieval-Augmented Generation) pipelines Document intelligence and knowledge retrieval AI-powered reporting and data processing API integrations with third-party business tools Agent monitoring and execution dashboards Scalable backend architecture for AI services Key Features ✓ Autonomous AI Agents ✓ Business Process Automation ✓ Document Q&A Systems ✓ Knowledge Base Search ✓ Multi-Step Workflow Execution ✓ Vector Database Integration ✓ Analytics & Monitoring ✓ Secure API Integrations Technologies Used OpenAI, LangChain, Python, FastAPI, Pinecone, ChromaDB, PostgreSQL, React.js, Next.js, TypeScript, REST APIs Results Reduced manual workload through automation Improved operational efficiency Faster access to business knowledge Streamlined internal workflows Enhanced decision-making with AI-powered insights Services Demonstrated AI Agent Development • RAG Systems • Workflow Automation • OpenAI Integration • Enterprise AI Solutions • Custom AI Applications Project Link https://beam.ai/
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Fullstack Engineer(3)