Freelancers using Web3.js in GujranwalaFreelancers using Web3.js in Gujranwala
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Hammad Ehsan Ullah's avatar
Hammad Ehsan Ullah
Gujranwala, Pakistan
AI Engineer | Full-Stack Engineer I Blockchain Developer
AI Engineer | Full-Stack Engineer I Blockchain Developer
Cover image for DeFi Liquidity Protocol — Smart
DeFi Liquidity Protocol — Smart Contract Development A decentralized finance (DeFi) protocol enabling seamless token swaps, liquidity provision, and yield farming with secure smart contracts and intuitive user experience. Platform Features: Automated Market Maker (AMM) with dynamic pricing Multi-chain support (Ethereum, Polygon, Arbitrum, BSC) Liquidity pools with concentrated liquidity (Uniswap V3 style) Yield farming with reward distribution Governance token staking Advanced charting and price feeds Wallet integration (MetaMask, WalletConnect, Rainbow) Smart Contracts: Solidity development with ERC-20, ERC-721 standards Uniswap V2/V3 compatible architecture Gas-optimized code (~40% reduction) Comprehensive security testing & audits OpenZeppelin standard library integration Frontend & Backend: React/Next.js frontend with Wagmi & RainbowKit Node.js backend for indexing & analytics Real-time price feeds & market data PostgreSQL for transaction history TheGraph subgraph for on-chain data queries WebSocket connections for live updates Infrastructure: Docker containerization AWS deployment with auto-scaling CI/CD pipelines (GitHub Actions) Monitoring & alerting systems Tech Stack: Solidity, Web3.js, Ethers.js, React, Next.js, Node.js, TypeScript, PostgreSQL, Docker, AWS This project demonstrates expertise in DeFi protocols, secure smart contract development, blockchain integration, and scalable architecture.
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Cover image for Just shipped IAmAlwaysHere (IASH) -
Just shipped IAmAlwaysHere (IASH) - a full-stack social networking platform built for scalable, modern digital communities. 🚀 I worked across the product-from frontend experiences and backend architecture to APIs, authentication, database integration, and core social features. Building IASH meant solving the challenges that come with real social platforms: scalable architecture, smooth user experiences, secure user flows, responsive interfaces, and maintainable full-stack systems. What I worked on: → Full-stack application architecture → Modern responsive frontend → Backend APIs & business logic → Authentication & user management → Database design & integration → Social networking features → Performance & scalability I’m currently open to working with startups, founders, and teams building SaaS, social platforms, AI-powered products, and complex web applications. If you're turning an ambitious product idea into a production-ready platform, let's connect. #FullStackDeveloper #WebDevelopment #SoftwareEngineering #SaaS #Startup #ReactJS #NextJS #NodeJS #WebApp #ProductDevelopment #FreelanceDeveloper #contra
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Cover image for IAmAlwaysHere (IASH) — Full-Stack Social Networking Platform
IAmAlwaysHere (IASH) — Full-Stack Social Networking Platform
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Cover image for Time-Tracker Pro — Intelligent Time
Time-Tracker Pro — Intelligent Time Management & Productivity SaaS A comprehensive SaaS platform that helps teams and freelancers track time, manage projects, and optimize productivity with AI-powered insights. Core Features: Real-time time tracking with automatic detection Project & task management with hierarchical organization Detailed time analytics and productivity reports Team collaboration & billable hours tracking Invoice generation from tracked time Browser extension for seamless tracking Mobile app for on-the-go time logging Idle time detection & smart reminders Integration with popular tools (Slack, Jira, Asana, Google Calendar) AI-Powered Capabilities: Automatic activity categorization using machine learning Predictive project time estimates Productivity insights & trend analysis Smart recommendations for time optimization Natural language project/task creation Anomaly detection for unusual patterns Dashboard & Reporting: Real-time team activity dashboard Customizable productivity reports Time distribution charts & visualizations Client billing reports with detailed breakdowns Performance metrics & KPIs Export to PDF, CSV, or integrate with accounting software Technical Stack: Frontend: React, Next.js, TypeScript, Tailwind CSS Backend: Node.js, Express, NestJS Database: PostgreSQL for relational data, Redis for caching AI/ML: Python (scikit-learn, TensorFlow) for predictions Real-time: WebSockets for live updates Infrastructure: Docker, AWS EC2, S3, Lambda CI/CD: GitHub Actions Authentication: OAuth 2.0, JWT tokens Key Accomplishments: ✓ 1000+ concurrent users support ✓ Sub-100ms API response times ✓ 99.9% uptime SLA ✓ Encrypted data storage & transmission ✓ GDPR compliant ✓ Scalable microservices architecture ✓ Automated testing (Jest, Cypress) This project demonstrates expertise in: SaaS architecture & scalability Real-time systems & WebSockets AI/ML integration for predictions Payment processing & invoicing User authentication & security Team collaboration features Production deployment & DevOps
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Web3.js(1)