I have successfully developed Smart Contracts, Tokens, Dapps, Defi, DEX ,NFT Marketplace, and Innovative Utilities for Startups and their NFT collections on multiple Blockchains Platform i.e Ethereum, Polygon, Binance, Wave . As a blockchain developer & solidity programmer, ride developer, I have successfully delivered a wide range of custom cryptocurrency and blockchain development projects using the solidity & Ride language with eye-catching user-friendly UI design and high-end functionalities My Technical Blockchain Development Expertise: ⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷ Being a full-stack blockchain developer, I have decent expertise in Blockchain development and smart contract Audit and custom smart contract application development technologies: ✅ Server-Side Languages: PHP, Node JS ✅ Frameworks: Express Js, YII2, Laravel, CakePHP ✅ JavaScript Frameworks: Angular Js, Jquery. ✅ Smart contract language: Solidity, Ride ✅ Data Management: o RDBMS: MySQL 5.X, PostgreSQL, Amazon RDS o NoSQL: MongoDB. o Caching: Memcached, Redis o Searching: Solr, Lucene, Elasticsearch, Amazon CloudSearch ✅ Queue: ActiveMQ, Amazon SQS ✅ Server Technologies: Linux, Ubuntu ✅ Cloud Computing Platforms: Amazon Web Services ✅ Frontend Stack: o Languages: HTML5, CSS3, Sass, JavaScript o UI Frameworks: Bootstrap, jQuery UI o JavaScript Frameworks: React, Backbone.js, Angular 2 ✅ Third-Party APIs Integration: o Payment Gateway: PayPal, Stripe, Authorize.Net, Coinpayments.net o Social: Facebook, Twitter, Google+ o Geolocation: Google Maps, Bing Maps o File Storage: Dropbox, Google Drive Blockchain Development Services We Offer: ⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷ Being a full-stack blockchain developer & solidity programmer and associated with an ISO certified blockchain development company, I develop rapid, error-free website & web applications to achieve an enterprise's functionality implementation and business logic with minimum complexities ✅ Custom Blockchain Development ✅ Smart Contracts Development ✅ dApps Development ✅ Defi ✅Liquidity pool ✅ Crowdsale ✅ EVM Based Blockchain ✅ Hyperledger & Multichain Development ✅ Multichain/Supply Chain Development ✅ Custom Cryptocurrency Development ✅ Crypto App Development ✅ ICO Web Development ✅ POC Development ✅ Custodial and Non-Custodial wallet Integration ✅ Cryptocurrency Wallet and Exchange Applications ✅ Private Blockchain Development ✅ Blockchain Consulting ✅ Blockchain Testing ✅ Ongoing Blockchain Development Support and Maintenance ✅ Full-Stack Blockchain Development ✅ Full Time Dedicated Blockchain Developer ✅ Half Dedicated Blockchain Developer Hourly Basis

I help startups, founders, and businesses to build production-ready Blockchain, Web3, and AI-powered solutions that are secure, scalable, and built for real-world use. As a Blockchain Developer and AI Agent Developer, I specialize in Smart Contract Development, Solana Development, Ethereum Development, Web3 Infrastructure, Autonomous AI Agents, and On-Chain Payment Systems. My focus is on building high-performance decentralized applications, blockchain ecosystems, and AI-driven automation that deliver measurable results. 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: Blockchain Development, Web3 Development, Smart Contract Development, Solidity Development, Rust Development, Solana Development, Ethereum Development, DApp Development, AI Agent Development, Agentic AI Systems, Autonomous AI Agents, Web3 Infrastructure, Layer-1 Blockchain Development, DeFi Development, NFT Marketplace Development, Cryptocurrency Payment Systems, On-Chain Payment Infrastructure, x402 Payment Protocol, Staking Platforms, Validator Nodes, Consensus Mechanisms, Hyperledger Development, IPFS Integration, Web3 Automation, Decentralized Identity Solutions, Certificate Verification Systems 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗦𝘁𝗮𝗰𝗸: Solidity, Rust, Python, JavaScript, TypeScript, React.js, Next.js, Node.js, Web3.js, Ethers.js, Hyperledger, IPFS, MongoDB, PostgreSQL, AI/ML Frameworks, LLM Integration, Agentic AI Frameworks, API Development, Cloud Infrastructure, Blockchain Architecture, and Web3 Technologies. 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝗜'𝘃𝗲 𝗕𝘂𝗶𝗹𝘁: ✅ Smart Contracts for Ethereum and EVM Chains ✅ Solana-Based Blockchain Applications ✅ NFT Marketplaces with Minting, Trading, and Marketplace Features ✅ DeFi Protocols and Staking Platforms ✅ Layer-1 Blockchain Ecosystems with Validator Networks ✅ Decentralized Verification and Credential Systems ✅ AI-Powered Autonomous Agents ✅ On-Chain Payment Infrastructure and Web3 Payment Systems ✅ Enterprise Blockchain Solutions using Hyperledger ✅ Web3 Automation and Blockchain Integrations Whether you're building a Blockchain Startup, Web3 Platform, DeFi Protocol, NFT Marketplace, AI Agent, Smart Contract System, or Cryptocurrency Payment Solution, I can transform your idea into a secure, scalable, and production-ready product. Let's build the future of Blockchain, Web3, Smart Contracts, AI Agents, DeFi, NFTs, and Decentralized Infrastructure.

Web3 Developer | Smart Contracts · dApps · DeFi · NFTs · Crypto Bots Hi, I'm Youssef a Web3 developer who's been in the trenches building real blockchain products since the early days of DeFi. I don't just write smart contracts; I've launched full end-to-end crypto products DeFi apps, NFT platforms, token ecosystems, and crypto games and I understand both the technical and business side of what makes a Web3 project actually work. I've shipped production-grade dApps trusted by real users, and I bring that same execution energy to every client project I take on. What I Build ✅ Smart Contracts Solidity & Rust (DeFi, NFTs, DAOs, staking, vesting) ✅ dApp Development full-stack Web3 from contracts to UI ✅ ICO / IDO / IEO / IZO tokenomics design, launch strategy, contracts ✅ NFT Platforms minting, auctions, marketplaces, gating ✅ Crypto Bots & Automation Telegram bots, launchpad tools, airdrops ✅ Cross-Chain Development EVM, Solana, BTC-layer integrations ✅ Crypto Wallet & Exchange Development ✅ DeFi Protocols staking, lending, yield farming ✅ Front-End React, Next.js, Webflow, WordPress (Elementor Pro), Shopify ✅ SEO & Performance Optimization Why Work With Me ✔ Zero-risk start if you're not happy after 2 weeks, you owe me nothing, no matter how much work I've done. ✔ 2 months free support I stay available after launch for questions, fixes, and guidance. ✔ Audited-grade code written to the same standards used by leading smart contract auditors. ✔ 6+ years delivering Web3 products, not just writing code. ✔ Clean, scalable, secure pixel-perfect execution with long-term maintainability in mind. I'm straightforward to work with, honest about timelines, and focused on shipping something you're genuinely proud of. 📩 Send me a message let's talk about what you're building.

Low latency distributed systems. Pixel perfect frontends. Everything in between. ✅Frontend: HTML, CSS, JS, TS, React, Vue, Svelte, Web3, Ethers, Yew, Leptos ✅Backend: Solidity, Rust, Golang, Python, Node, C, C++ ✅Protocol: Solidity, Anchor, Pinnochio, Quasar, Assembly, Hardhat, Foundry

I’m a Senior Full-Stack Blockchain Developer with 8+ years of experience delivering production-ready Web3 solutions across Layer 1 and Layer 2 networks. I help startups, enterprises, and founders turn complex blockchain ideas into secure, high-performance applications that scale with real users. I’ve worked extensively across Ethereum and various chains (Ethereum, BNB Chain, Polygon, Avalanche, Tron) as well as Solana, building everything from smart contract systems to complete Web3 platforms. 𝐖𝐡𝐚𝐭 𝐈 𝐁𝐮𝐢𝐥𝐝: -DeFi platforms (staking, yield farming, liquidity mechanisms) -NFT marketplaces (minting, trading, royalties, gas optimization) -Token launchpads & ICO/IDO platforms -Tokenization systems for digital and real-world assets -DAO & governance frameworks -Multi-chain and Layer 2 integrations 𝐁𝐥𝐨𝐜𝐤𝐜𝐡𝐚𝐢𝐧 𝐄𝐱𝐜𝐞𝐥𝐥𝐞𝐧𝐜𝐞: - Smart Contract Mastery: Solidity development for ERC-20/721/1155 with comprehensive security auditing and gas optimization. - DeFi Architecture: Yield farming, staking protocols, automated market makers, and liquidity pools with proven TVL growth. - Web3 Integration: React/Next.js frontends with Web3.js/Ethers.js, MetaMask connectivity, and seamless user experiences. - Multi-Chain Deployment: Ethereum, Polygon, Solana, BSC with cross-chain bridges and Layer-2 scaling solutions. Industries I Serve: DeFi (yield optimization), NFT Projects (creator monetization), Gaming (play-to-earn), Enterprise (asset tokenization), Real Estate (fractional ownership) I am a results-driven Blockchain Developer specializing in building secure, scalable, and production-grade Web3 applications that deliver measurable business value. My core expertise spans advanced Solidity smart contract engineering, DeFi protocol design, tokenomics modeling, and full-stack dApp architecture across EVM ecosystems. I actively integrate trending blockchain innovations such as Layer-2 scaling solutions (Polygon, Arbitrum), zk-rollups, account abstraction (ERC-4337), MEV-resistant contract mechanisms, modular blockchain architecture, restaking primitives, and real-world asset (RWA) tokenization. My approach focuses on gas optimization, security hardening, and high-performance contract execution. With hands-on experience in smart contract auditing, on-chain data analytics, DAO governance frameworks, cross-chain interoperability, and omnichain messaging protocols, I architect secure, future-proof Web3 ecosystems that enhance user adoption, strengthen investor trust, and enable sustainable protocol growth.

As a blockchain developer with 2 years of experience, I have a strong understanding of the fundamentals of blockchain technology, including its architecture, consensus mechanisms, and smart contract development. I specialize in developing decentralized applications (dApps) using blockchain technology and have experience working with a range of blockchain platforms, including Ethereum, Hyperledger, Binance and Solana. During my time as a blockchain developer, I have worked on several projects, including developing smart contracts for supply chain management, implementing blockchain-based voting systems, and creating a decentralized marketplace for digital assets. I have also contributed to open-source blockchain projects and have experience working with blockchain APIs, wallets, and nodes. My technical skills include proficiency in Solidity, JavaScript, Python, Rust and Go, as well as experience with blockchain tools such as Truffle, Hardhat, Ganache, Remix, and Web3.js. I also have experience with DevOps tools such as Docker, Kubernetes, and Git. In addition to my technical skills, I am a strong communicator and a team player. I am comfortable working in an agile development environment and am committed to delivering high-quality code that meets project requirements and deadlines. If you're looking for a blockchain developer with experience developing dApps and working with a range of blockchain platforms, I would be happy to discuss your project and see how I can help.

Solidity developer and full-stack Web3 engineer with 6+ years building production dApps on Ethereum, Polygon, BNB Chain, Arbitrum, and Hedera. 50+ projects delivered. 100% JSS. Top Rated on Upwork. 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐈'𝐯𝐞 𝐬𝐡𝐢𝐩𝐩𝐞𝐝: 𝐒𝐩𝐡𝐞𝐫𝐚 𝐍𝐅𝐓 𝐌𝐚𝐫𝐤𝐞𝐭𝐩𝐥𝐚𝐜𝐞 : full-stack NFT marketplace on Hedera; Next.js frontend, Node.js backend with Redis caching and PostgreSQL, smart contract development, testing, integration and mainnet deployment 𝐃𝐞𝐜𝐞𝐧𝐭𝐫𝐚𝐥𝐢𝐳𝐞𝐝 𝐯𝐨𝐭𝐢𝐧𝐠 𝐬𝐲𝐬𝐭𝐞𝐦 𝐰𝐢𝐭𝐡 𝐛𝐢𝐨𝐦𝐞𝐭𝐫𝐢𝐜 𝐟𝐢𝐧𝐠𝐞𝐫𝐩𝐫𝐢𝐧𝐭 𝐚𝐮𝐭𝐡𝐞𝐧𝐭𝐢𝐜𝐚𝐭𝐢𝐨𝐧 (𝐖𝐞𝐛𝐀𝐮𝐭𝐡𝐧) : voters verify identity off-chain, votes recorded immutably on Ethereum via Solidity smart contract 𝐃𝐞𝐜𝐞𝐧𝐭𝐫𝐚𝐥𝐢𝐳𝐞𝐝 𝐠𝐢𝐯𝐞𝐚𝐰𝐚𝐲 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐰𝐢𝐭𝐡 𝐂𝐡𝐚𝐢𝐧𝐥𝐢𝐧𝐤 𝐕𝐑𝐅 : provably fair, on-chain randomness for tamper-proof winner selection, no manual intervention 𝐃𝐞𝐜𝐞𝐧𝐭𝐫𝐚𝐥𝐢𝐳𝐞𝐝 𝐜𝐞𝐫𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐞 𝐯𝐞𝐫𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐮𝐬𝐢𝐧𝐠 𝐙𝐞𝐫𝐨-𝐊𝐧𝐨𝐰𝐥𝐞𝐝𝐠𝐞 𝐏𝐫𝐨𝐨𝐟𝐬 : validates authenticity without exposing private data, ZK proof verified by smart contract on-chain 𝐍𝐅𝐓 𝐦𝐢𝐧𝐭𝐢𝐧𝐠 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 with IPFS metadata, whitelist presale, ERC-721/1155 contracts, and OpenSea integration , deployed to Ethereum mainnet 𝐃𝐞𝐅𝐢 𝐬𝐭𝐚𝐤𝐢𝐧𝐠 𝐚𝐧𝐝 𝐲𝐢𝐞𝐥𝐝 𝐟𝐚𝐫𝐦𝐢𝐧𝐠 𝐜𝐨𝐧𝐭𝐫𝐚𝐜𝐭𝐬 with gas-optimized Solidity and OpenZeppelin security standards 𝐓𝐨𝐤𝐞𝐧 𝐥𝐚𝐮𝐧𝐜𝐡𝐞𝐬 with ERC-20 presale contracts, vesting schedules, airdrop mechanics , Etherscan verified 𝐒𝐮𝐥𝐢𝐨 𝐀𝐫𝐭 : rescued and completed after multiple failed outsourcing attempts, delivered on deadline, 5-star client review Every contract is written test-first using Hardhat, deployed to testnet before mainnet, and verified on-chain before handoff. I send daily progress updates and document every architecture decision so you always know where the project stands. No surprises, no scope creep. 𝐒𝐦𝐚𝐫𝐭 𝐜𝐨𝐧𝐭𝐫𝐚𝐜𝐭 𝐬𝐭𝐚𝐜𝐤 : Solidity · ERC-20, ERC-721, ERC-1155 · Chainlink VRF · Zero-Knowledge Proofs · WebAuthn · Hardhat · Remix IDE · OpenZeppelin · IPFS · Hedera HTS 𝐂𝐡𝐚𝐢𝐧𝐬 : Ethereum · Polygon · BNB Chain · Arbitrum · Avalanche · Hedera Hashgraph 𝐖𝐞𝐛𝟑 𝐟𝐫𝐨𝐧𝐭𝐞𝐧𝐝: Ethers.js · Web3.js · MetaMask · WalletConnect · RainbowKit · Wagmi 𝐅𝐮𝐥𝐥-𝐬𝐭𝐚𝐜𝐤 : React.js · Next.js · Node.js · Express.js · Redis · PostgreSQL · MongoDB · REST APIs · TypeScript 𝐈𝐟 𝐲𝐨𝐮'𝐫𝐞 𝐥𝐚𝐮𝐧𝐜𝐡𝐢𝐧𝐠 𝐚 𝐭𝐨𝐤𝐞𝐧, 𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐚 𝐃𝐞𝐅𝐢 𝐩𝐫𝐨𝐭𝐨𝐜𝐨𝐥, 𝐨𝐫 𝐧𝐞𝐞𝐝 𝐚 𝐬𝐦𝐚𝐫𝐭 𝐜𝐨𝐧𝐭𝐫𝐚𝐜𝐭 + 𝐟𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐞𝐝 𝐚𝐬 𝐨𝐧𝐞 𝐜𝐨𝐦𝐩𝐥𝐞𝐭𝐞 𝐩𝐚𝐜𝐤𝐚𝐠𝐞 , 𝐬𝐞𝐧𝐝 𝐦𝐞 𝐭𝐡𝐞 𝐛𝐫𝐢𝐞𝐟 𝐚𝐧𝐝 𝐈'𝐥𝐥 𝐭𝐞𝐥𝐥 𝐲𝐨𝐮 𝐞𝐱𝐚𝐜𝐭𝐥𝐲 𝐡𝐨𝐰 𝐈'𝐝 𝐚𝐩𝐩𝐫𝐨𝐚𝐜𝐡 𝐢𝐭 𝐰𝐢𝐭𝐡𝐢𝐧 𝟒 𝐡𝐨𝐮𝐫𝐬.

With 6+ years of hands on experience, I’m a Blockchain Engineer skilled in Web3, Solidity, DeFi, NFTs, liquid staking, and vault systems. I build secure, scalable dApps across Ethereum, Layer-2s, and custom EVM chains. I specialize in building scalable solutions. Beyond blockchain, I design and deploy intelligent systems AI models and automation bots. Whether it's automating crypto workflows, integrating GPT or Stable Diffusion, or launching NFT platforms, I combine cutting edge tech with practical engineering to deliver results. I’ve led Full Stack teams, optimized systems for 150K+ users, and launched production ready MVPs across Web3, AI, and SaaS. From building microservices, automating CI/CD pipelines with GitHub Actions and Jenkins, to integrating Zoom APIs, Firebase, GPT-3, and Stable Diffusion, I solve complex problems with clarity and speed. 💡TECH STACK : 🔥 DEVELOPMENT SKILLS: Solidity, Web3.js, Ethers.js, Smart Contracts, Rust, dApp Architecture, JavaScript, TypeScript, Node.js, Express.js, React.js, Next.js, REST APIs, GraphQL, MongoDB, PostgreSQL, MySQL, NoSQL, Tailwind CSS, HTML. 🤖 AI, AUTOMATION & INTEGRATIONS: Python, OpenAI API, AI Integration, Stable Diffusion, Automation Scripts, API Workflows, Data Pipelines, Natural Language Processing (NLP), Prompt Engineering. ⚙️INFRASTRUCTURE & DEVOPS: AWS Lambda, ECS, Docker, Kubernetes, CI/CD, GitHub Actions, Jenkins, Firebase, Payment Gateway Integration, API Integration, Microservices, Authentication & Authorization, MVC Architecture, SaaS Platforms, Cloud-Native Deployment. 🚀 Why choose me? I'm reliable, responsive, and take full ownership of the work I deliver. If you're looking for someone who can hit the ground running and get things done fast, I'm your guy. Let’s turn your vision into clean, scalable code on time, every time. 📞 𝐋𝐞𝐭’𝐬 𝐁𝐮𝐢𝐥𝐝 𝐓𝐨𝐠𝐞𝐭𝐡𝐞𝐫 Book a free consultation call today - I’ll help you take your project from idea to real world results.

An Ethereum & Solana Blockchain Developer with 3+ years of experience building decentralized applications (dApps), solidity & rust smart contracts, NFT marketplaces, and Web3 platforms. I am building secure and scalable blockchain solutions on the Ethereum ecosystem. Core Expertise: ✔ Smart Contract Development (Solidity , Rust) ✔ Decentralized Applications (dApps) ✔ Token Development (ERC-20, ERC-721, ERC-1155) ✔ NFT Platforms & Marketplaces ✔ DeFi Smart Contracts (ICO, IDO, Crowd Funding) ✔ Web3 Wallet Integration (MetaMask, WalletConnect) ✔ Blockchain Architecture & Deployment Blockchain Tools: - Solidity - Hardhat - Foundry - Truffle - Ganache - Anvil - Infura - Alchemy - QuickNode - IPFS - Pinata Full-Stack Web3 Development: - React.js - Next.js - Node.js - Express.js - JavaScript - REST APIs - GraphQL - Redux Toolkit - MongoDB Deployment & UI Tools: - Tailwind CSS - Bootstrap - Firebase - Vercel I focus on writing secure, well-tested smart contracts and scalable Web3 applications that are ready for production environments. If you are building a Web3 product, NFT platform, custom blockchain solution, or decentralized application (dApp), I would be happy to help bring your project to life.

Most developers ship features. I build systems that stay stable under real usage. As a Full Stack Developer, I focus on performance, reliability, and clean architecture. I build SaaS platforms, MVPs, and blockchain solutions that work in real-world production environments. I use blockchain only where it makes financial or technical sense and I bridge Web2 and Web3 so you get the benefits without unnecessary complexity. I also help startups build MVPs fast, so you can validate ideas before scaling. What I do: - Full-stack development: React.js, Next.js, Node.js, MongoDB - Build scalable SaaS applications and backend systems - Build MVPs for startups (fast, solid foundations) - API development and integration - Build and integrate AI features, chatbots, RAG systems, and automation workflows - Fix bugs, broken APIs, and system bottlenecks - Optimize performance: queries, APIs, load time - Blockchain integration when needed (Solidity, Ethers.js, Web3.js) - Fix blockchain integration issues and smart contract problems - AWS deployment, Docker, CI/CD Recent Impact: - Reduced API latency by 40–60% through query optimization and caching - Restored ~100% transaction reliability by fixing blockchain integrations - Improved production performance and UX under real user load If you need to: - build an MVP, SaaS app or AI-powered application - develop a full stack platform - integrate blockchain into an existing system - or fix something that’s already live I can step in quickly, understand your stack, and get it working properly. Send me your repo or tech stack. I’ll review it and give you clear recommendations on the best way forward.