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Muhammad U.
$25/hr
100% Job Success
$5K+ earned
Available now
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\Web3 Developer | Blockchain Developer | Solidity & Rust Expert Looking for a reliable Web3 Developer who can turn your blockchain idea into a secure, scalable, and production-ready product? I specialize in blockchain development, smart contracts, decentralized applications (DApps), DeFi protocols, NFT platforms, token development, and Web3 integrations. Whether you're building on Ethereum, Solana, BNB Chain, Polygon, Base, Arbitrum, or other EVM-compatible networks, I can help you deliver a high-quality solution from concept to deployment. My focus is not just writing code it's building secure, gas-efficient, and scalable blockchain products that create real business value. Core Blockchain Services: • Smart Contract Development (Solidity & Rust) • Ethereum & EVM-Based Development • Solana Program Development (Anchor Framework) • DeFi Applications & Protocols • DEX, Staking & Yield Farming Platforms • NFT Marketplaces & NFT Smart Contracts • ERC20, BEP20 & SPL Token Development • Token Presale, ICO, IDO & Launchpads • DAO Development & Governance Systems • Crypto Wallet Integration • Cross-Chain & Web3 Integrations • Smart Contract Testing & Deployment • Smart Contract Optimization • Security Best Practices & Code Review • Blockchain Consulting & Architecture Design Technologies & Tools: • Solidity, Rust, JavaScript, TypeScript • Hardhat, Foundry, Anchor, Ethers.js, Web3.js • React.js, Next.js, Node.js • OpenZeppelin, Chainlink • IPFS, MongoDB, PostgreSQL • Ethereum, Solana, Polygon, BNB Chain, Base, Arbitrum Why work with me? • Clean, maintainable, production-ready code • Security-first development approach • Gas-optimized smart contracts • Clear communication and fast response time • End-to-end development support • Long-term partnership mindset Whether you need a custom smart contract, DeFi platform, NFT marketplace, token launch, Web3 integration, or a complete blockchain application, I'm ready to help bring your vision to life. Send me a message and let's discuss your project.
shehzad I.
$35/hr
100% Job Success
$100K+ earned
Available now
Offers consultations
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✅ $100K+ Total Earnings ✅ 5 Live Products Generating Active Revenue ✅ 80+ Projects Completed 🌍 Dubai & Singapore · Serving US, UK & Gulf clients CTO-level architect with 10+ years of experience building, launching, and scaling AI-driven SaaS, Blockchain, and cloud platforms used by real customers and generating real revenue. I specialize in turning complex ideas into production-ready, scalable systems, not just MVPs, but platforms designed for growth, reliability, and long-term success. 𝐖𝐡𝐞𝐫𝐞 𝐈 𝐨𝐩𝐞𝐫𝐚𝐭𝐞: → Full-Stack SaaS — React, Next.js, Node.js, PostgreSQL, Supabase, Python → Blockchain & Web3 — Solidity, smart contracts, NFT marketplaces, DeFi, tokenomics → AI & Automation — Claude API, OpenAI, voice agents, RAG pipelines, n8n, Make, LangChain → Infrastructure — AWS, GCP, Azure, Docker, Kubernetes, CI/CD 𝐖𝐡𝐚𝐭 𝐦𝐚𝐤𝐞𝐬 𝐭𝐡𝐢𝐬 𝐝𝐢𝐟𝐟𝐞𝐫𝐞𝐧𝐭: Most developers hand you code. I hand you a working business asset. I'll help you validate before you burn capital, structure systems correctly from day one, and scale infrastructure as your users grow not after they leave. 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐬𝐭𝐚𝐲 𝐥𝐨𝐧𝐠-𝐭𝐞𝐫𝐦 𝐛𝐞𝐜𝐚𝐮𝐬𝐞: → I give honest advice, even when it's uncomfortable → I take ownership like it's my own product → I don't disappear after delivery → I make architectural decisions you won't have to undo in six months 𝐈 𝐰𝐨𝐫𝐤 𝐛𝐞𝐬𝐭 𝐰𝐢𝐭𝐡: Founders who are serious. Startups moving fast. SaaS products that need to scale. AI-first teams. Web3 builders who want it done right. If you're building something that needs to work not just launch , tell me your goal and your deadline. I'll give you the fastest, most honest path to getting there.
Rahul  M.
$15/hr
100% Job Success
$40K+ earned
Available now
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With 6+ years of experience in smart contract development and blockchain protocol engineering. My expertise spans Ethereum smart contracts, Solana programs, DeFi protocol architecture, and token launch platforms. I excel at building secure, gas-optimized smart contracts from ERC token standards to complex DeFi mechanisms and memecoin launch platforms like Pump.fun. Whether it's developing trading bots, yield farming protocols, or cross-chain bridges, I deliver audited smart contracts that handle millions in transaction volume. Languages: - Solidity: Smart contracts, DeFi protocols, gas optimization - Rust: Solana programs, Anchor framework, SPL tokens - JavaScript/TypeScript: Web3.js, Ethers.js, dApp development - Python: Trading scripts, data analysis, automation Databases & Storage: - PostgreSQL, MongoDB, Redis - Graph Protocol, IPFS, Arweave Smart Contract Development: - ERC Standards: ERC-20/721/1155, proxy patterns, upgradeable contracts - DeFi Protocols: AMMs, yield farming, lending, flash loans - Token Launches: Pump.fun integration, bonding curves, fair launch - MEV Protection: Sandwich attack prevention, front-running protection - Cross-chain: LayerZero, Chainlink CCIP, Wormhole - Security: Smart contract auditing, vulnerability assessment - Governance: DAO mechanisms, voting contracts, staking protocols Solana Development: - Anchor framework, SPL token programs - Metaplex NFT standards, PDA management - Cross-Program Invocation (CPI) - Rent optimization, compute unit efficiency Development Tools: - Frameworks: Hardhat, Foundry, Anchor, Truffle - Testing: Slither, Mythril, Forge - Web3 Libraries: Ethers.js, Web3.js, @solana/web3.js - Infrastructure: Infura, Alchemy, Helius, QuickNode - Wallets: MetaMask, Phantom, WalletConnect - Oracles: Chainlink, Pyth Network Blockchain Platforms: - Ethereum: Mainnet, Layer 2 solutions - Layer 2: Polygon, Arbitrum, Optimism, Base - Solana: SPL tokens, Anchor programs, Pump.fun - Alt Chains: BSC, Avalanche, Fantom, Near Protocol DeFi Specializations: - AMM development (Uniswap V2/V3, custom DEX) - Token economics, memecoin development - Trading bots (arbitrage, copy trading, snipers) - Launchpad platforms Infrastructure: - Cloud: AWS, Google Cloud, Vercel - CI/CD: GitHub Actions, automated testing - Monitoring: Prometheus, Grafana - Blockchain nodes: Ethereum full nodes, Solana validators
Syed Arslan A.
$35/hr
100% Job Success
$100K+ earned
Available now
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You have one shot to launch it right. Every week of delay, every half-built feature, every developer who ghosts after delivery costs you users, money, and momentum. I make sure that does not happen ✅ 10+ years building production iOS and Android apps for fintech, crypto, AI, and Web3 companies ✅ Senior Flutter and React Native developer, cross-platform from architecture to App Store ✅ Top Rated on Upwork with $100K+ earned ✅ Real shipped products with active users on both stores right now What I built: ✔ Mobile Apps: Flutter (Dart) and React Native (TypeScript) for iOS and Android. Startup MVPs, production rewrites, cross-platform apps, real-time systems, offline-first architecture, App Store and Play Store deployment. No supervision needed, no handholding, no gaps. ✔ Fintech and Crypto: non-custodial crypto wallets, Stripe payment integration, in-app purchases, KYC and KYT flows, trading platforms, multi-chain mobile wallets, fiat to crypto flows, banking app architecture. ✔ AI-Powered Mobile Apps: OpenAI API and Claude API integrations, LangChain workflows, RAG pipelines, AI chatbots, conversational interfaces, AI agents, on-device inference, LLM-driven automation built directly into mobile products. ✔ Blockchain and Web3: Ethereum, Solana, XRP Ledger, Bitcoin. Solidity and Rust smart contracts, DeFi protocols, NFT marketplaces, DAO governance, RWA tokenization, WalletConnect, MetaMask, multi-sig flows, dApp frontends. ✔ Backend and Infrastructure: Node.js, NestJS, REST APIs, GraphQL, WebSockets, Firebase, MongoDB, PostgreSQL, AWS, Docker, CI/CD pipelines. I own the backend, too, so you do not need a separate hire. Most clients come to me because they need one developer who owns the entire product: mobile app, backend, integrations, blockchain layer, and deployment. No coordination overhead. No gaps between layers. One clear line of responsibility. If you are building a fintech app, crypto wallet, AI-powered mobile product, or Web3 platform, send me your project details. I will respond with a clear technical plan and honest timeline within a few hours. Keywords: Flutter, React Native, iOS Development, Android Development, Mobile App Development, OpenAI API, LangChain, AI Chatbot Development, LLM Integration, Generative AI, Solidity Smart Contracts, Crypto Wallet Development, DeFi, NFT Development, Dart, TypeScript, Swift, Kotlin, Node.js, NestJS, Firebase, MongoDB, PostgreSQL, GraphQL, REST API, WebSockets, AWS, Docker, CI/CD, Stripe Integration, KYC, Payment Gateway, Ethereum, Solana, XRP Ledger, WalletConnect, MetaMask, RAG Pipeline, Claude API, AI Agent, Fintech App Development, Crypto Exchange, Trading Platform, MVP Development, Cross-Platform App Development
$35/hr
89% Job Success
$10K+ earned
Available now
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Senior Web3 Blockchain & AI Engineer I build at the intersection of decentralized systems and artificial intelligence where smart contracts meet machine learning, and on-chain infrastructure powers intelligent, autonomous applications. With deep expertise across blockchain development and AI engineering, I deliver production-ready solutions that are secure, scalable, and designed for the real world. What I Build Blockchain & Web3 Solidity smart contracts, DeFi protocols, NFT marketplaces, DAOs, token launches, staking systems, DEX integrations (Uniswap / PancakeSwap), cross-chain bridges, Layer-2 solutions, crypto payment systems, and full-stack dApps across Ethereum, BNB Chain, Polygon, and Arbitrum. AI Engineering LLM-powered applications, RAG pipelines, AI agents and autonomous workflows, fine-tuned models, natural language interfaces for Web3, AI-integrated smart contract monitoring, on-chain data intelligence, and predictive analytics for DeFi. AI × Web3 Convergence AI-driven trading and arbitrage bots, intelligent contract auditing assistants, on-chain anomaly detection, LLM-powered DAO governance tools, AI agents interacting with blockchain protocols, and real-world asset (RWA) platforms with embedded intelligence. Core Expertise:- Blockchain Solidity · ERC-20 / ERC-721 / ERC-1155 · Hardhat · Foundry · Wagmi · Viem · Web3.js · Ethers.js · Gas Optimization · Smart Contract Security · Token Vesting · Tokenomics · Wallet Integration · On-Chain & Off-Chain Architecture AI & Machine Learning LLMs (GPT-4, Claude, Gemini, open-source) · LangChain · LlamaIndex · RAG Systems · Vector Databases (Pinecone, Weaviate, Chroma) · Fine-Tuning · AI Agents · OpenAI API · Hugging Face · Prompt Engineering · Embeddings · Semantic Search Full Stack & Infrastructure TypeScript · Node.js · React · Next.js · Python · Rust · MongoDB · PostgreSQL · Docker · AWS · Firebase · CI/CD Pipelines · Blockchain Deployment Pipelines What I've Shipped ✔ Decentralized Applications (dApps) with AI-powered user interfaces ✔ DeFi Platforms with intelligent yield optimization and risk scoring ✔ NFT Ecosystems with AI-generated content and rarity analysis ✔ DAO Governance Systems with LLM-assisted proposal drafting and summarization ✔ AI Trading & Arbitrage Bots with real-time on-chain signal processing ✔ Token Presale & Launchpad Platforms ✔ Crypto Wallet Applications with smart transaction suggestions ✔ Real World Asset (RWA) Platforms with AI document verification ✔ Web3 SaaS Platforms with embedded AI assistants ✔ Blockchain Dashboards with NLP querying and predictive analytics ✔ Liquidity & Farming Systems with automated rebalancing logic ✔ Smart Contract Auditing Tools augmented by AI analysis Why Clients Choose Me Security-first — every contract and AI pipeline is built with attack surfaces and edge cases in mind. Clean architecture — maintainable code, clear separation of concerns, well-documented systems. AI × Web3 natively — not bolted on, but designed together from the ground up. Fast communication — transparent, async-friendly, timezone-aware. Long-term partner— I support what I ship, from testnet to mainnet to production at scale. Business-oriented — I understand your product goals, not just the technical spec. Startup to enterprise — I've worked across the full spectrum and know what each stage needs. I build blockchain products and AI systems that are reliable, efficient, and ready for real-world adoption and increasingly, I build them as one unified thing Let's connect and talk about your next project
Himanshu N.
$20/hr
98% Job Success
$100K+ earned
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I’m Himanshu, a dedicated 𝐁𝐥𝐨𝐜𝐤𝐜𝐡𝐚𝐢𝐧, 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐚𝐧𝐝 𝐋𝐢𝐠𝐡𝐭𝐬𝐩𝐞𝐞𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 providing clients with dedicated personalized service as an 𝐢𝐧𝐝𝐢𝐯𝐢𝐝𝐮𝐚𝐥 𝐟𝐫𝐞𝐞𝐥𝐚𝐧𝐜𝐞𝐫. I'm actively participating in the development of Blockchain-based solutions for Different industries. Developing a DApp to democratize the global medical device industry. The platform will disintermediate the medical device and supplies ecosystems, Development of Smart Contracts, Real Estate Investments on Blockchain, Gambling/Lottery Game on Blockchain, Donation on Blockchain. My Technical Blockchain Development Expertise: Being a full-stack blockchain developer, I have decent expertise in Blockchain development and custom smart contract application development technologies: 🛠 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: ✔️ Frontend: React.js, Next.js, Vue.js, TypeScript, Tailwind CSS. ✔️ Backend: Node.js, Django, NestJS, Laravel, Express.js. ✔️ Databases: MongoDB, PostgreSQL, MySQL. 💪 𝐓𝐨𝐨𝐥𝐬 & 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬: ↔️ Blockchain: Solidity, Rust, Hardhat, Truffle, Anchor, Remix IDE. ↔️ Integration: Ethers.js, Web3.js, Alchemy, IPFS, The Graph, Chainlink. 🔷 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐎𝐟𝐟𝐞𝐫𝐞𝐝: 💎 Custom token development (fungible and non-fungible). 💎 DApp & DAO creation with seamless wallet integration (MetaMask, Phantom). 💎 Smart contract audits to ensure security and reliability. 💎 Development of DEX platforms and CEX integrations. 💎 Advanced blockchain bot solutions: MEV bots, arbitrage bots. 📈 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐞𝐝 𝐢𝐧 𝐃𝐞𝐅𝐢 & 𝐍𝐅𝐓𝐬: 🔥 Build platforms like DEXs, launchpads, and crowdfunding systems. 🔥 Develop NFTs with royalties, whitelist, dynamic metadata, and more. 💻 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 & 𝐒𝐤𝐢𝐥𝐥𝐬: 👉 Languages: Solidity, Rust, Python, JavaScript, TypeScript, Go, C++ 👉 Frameworks: React.js, Next.js, Vue.js, Django, Express.js, Truffle, Hardhat 👉 Databases: MongoDB, MySQL, PostgreSQL, Firebase 👉 Platforms: Ethereum, Solana, Binance Smart Chain, Polygon, Avalanche, Tron 👉 Tools: Docker, Kubernetes, AWS, Terraform, Alchemy, Brownie ☑️ Blockchain: Solidity, Web3.js, Ethers.js, Truffle, Hardhat, IPFS, Ethereum, Hyperledger, Solana, Binance Smart Chain, Polkadot, Smart Contracts, ERC-20, ERC-721, ERC-1155 ☑️ AI/ML: Python, TensorFlow, Keras, PyTorch, OpenCV, Scikit-Learn, Natural Language Processing (NLP), Computer Vision, Deep Learning, Machine Learning, Data Science, Pandas, NumPy, Jupyter Notebook ☑️ Mobile Development: Native applications using SwiftUI, Swift (iOS), and Kotlin (Android), and hybrid development with React Native, Flutter, and Ionic. 🚀 𝐍𝐨𝐭𝐚𝐛𝐥𝐞 𝐀𝐜𝐡𝐢𝐞𝐯𝐞𝐦𝐞𝐧𝐭𝐬: 🌟 Developed an NFT marketplace with multi-chain capabilities (Ethereum & Solana). 🌟 Built DeFi protocols with staking and liquidity mechanisms, optimizing gas fees by 30%. 🌟 Created cross-chain bridges connecting major blockchain ecosystems. 🌟 Contributed to $10M+ funding raised for blockchain startups. 💬 𝐋𝐞𝐭’𝐬 𝐂𝐨𝐥𝐥𝐚𝐛𝐨𝐫𝐚𝐭𝐞! Click the "Invite to Job" button to start your blockchain journey today! Together, we’ll craft the future of decentralized solutions. 🌐✨ How do we communicate and report? We always prefer to keep our work transparent, and for this reason, we like to be in touch with our valued clients on a daily, weekly & monthly basis. ✅ Upwork Message Board ✅ JIRA ✅ Azure DevOps Server ✅ Asana ✅ Trello ✅ Zoho Projects
Flexsin Technologies
Associated with
Flexsin Technologies
$10M+
earned
$30/hr
89% Job Success
$10K+ earned
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As a well-qualified Tech Stack Developer, I possess a profound understanding of client requirements and am dedicated to delivering high-quality work. With expertise in various programming utilities and languages, I am committed to empowering individuals and organizations with the skills necessary to excel in the digital age. I bring over 10 years of experience in software development, spanning multiple technology stacks and cloud platforms. Let's collaborate and bring your projects to life! I have advanced expertise in the following fields: ✔️ Programming Languages: Javascript, Java, Python, Golang, PHP ✔️ Frontend: React JS, Vue.js, jQuery ✔️ Backend: Node.js ( Nest JS, Express JS), Django, Laravel, ASP.NET ✔️ DevOps & System: AWS, Azure, GCP ✔️ Database: MongoDB, MySQL, PostgreSQL, Redis, Firebase, and more... I offer specialized expertise in the following services: ✔️ AI, Social Marketing ✔️ Blockchain Development ✔️ Web Development, WordPress I am looking forward to working with you and developing your dream products. So don't hesitate to get in touch with me. Thank you for considering me for your project!
Wajeeh Ul H.
$35/hr
100% Job Success
Available now
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🏆 Top Rated · Top 10% · 100% Job Success Score 🌐 Forbes Technology Council Member 🌍 Dubai & Singapore · Serving US, UK & Gulf clients I build products that ship, scale, and make money. 10+ years across AI, blockchain, full-stack development, and product design. I've taken projects from whiteboard to production across healthcare, real estate, fintech, Web3, and hospitality. Live products with real users. What I've shipped: 🤖 Confirmlyai - AI voice and chat booking platform, 33 clinics across UAE, no-shows down 21% last month 🏠 Hutfin - real estate marketplace, YCombinator selected, $5M pre-seed raised 🎮 VAF Gaming - NFT marketplace, $1.3M revenue in 72 hours 🍜 iMakan - multi location SaaS, 12 facilities Singapore, expanding Dubai 📈 GMX IO - autonomous AI trading platform, $350B total volume and 460k+ active traders 🏥 Carepatron alike Definia healthcare platform, 60 US facilities, HIPAA and SOC2 compliant What I build for clients: → AI agents and automation; n8n, Make, Claude API, OpenAI, voice agents, RAG pipelines → Full stack SaaS; React, Next.js, Node.js, PostgreSQL, Supabase → Blockchain and Web3; smart contracts, NFT marketplaces, tokenomics, DeFi, liquidity strategy, TGE → Product design; conversion funnels, landing pages, SaaS UI, mobile apps I work as a fractional CTO, lead developer, and product partner. Share your goal and deadline. I'll come back with the fastest honest path to results. Skills: Full-Stack Development, React, Next.js, Node.js, Python, PostgreSQL, Supabase, AI Integration, Claude Code, Claude Design, Anthropic APIs, OpenAI, n8n, Make, LangChain, RAG, Voice AI (Retell, Synthflow, Elevenlabs, WAPI), Blockchain, Smart Contracts, Solidity, NFT, Web3, Flutter, Mobile App Development, SaaS, API Integration, UI/UX Design, Figma
Md S.
$20/hr
100% Job Success
$70K+ earned
Available now
Offers consultations
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Want to work with an experienced Blockchain developer who can bring your smart contract, decentralized application (dApp) vision to life? Are you looking for a Solidity or Rust developer to develop "Gas-Optimized" smart contracts? Whether you're looking to create ERC20 or SPL tokens, ERC721, ERC1155, or NFTs with custom features, concerned about vulnerabilities and exploits in your high-value contracts, need to write tests for contracts, or need a script to interact with leading DEX protocols—I've got you covered. 🖐 Some of my previous clients' quotes about me: ✔️ "...Excellent technical skills and consistently good communication... Completed the project in a timely fashion, exceeding our original deadline." ✔️ "His work was phenomenal...made sure I understood every step along the way... ✔️ "..took this project on as if it was his own... Great professional skills, always there to answer questions and suggest the best solutions." ✔️ "...Every facet of his work was impressive. WOW!" ✔️ "... goes above and beyond. Md's professionalism and expertise in blockchain are unmatched.." ✔️ "... communication is excellent, delivery is fast, and his knowledge of smart contracts is impressive." With expertise in EVM-compatible chains (like Ethereum, BSC) and Solana, I specialize in delivering high-performance, gas-optimized smart contracts and dApps tailored to your specific requirements. I help my clients build secure and highly resilient smart contracts, minimizing vulnerabilities and ensuring your code is fortified against exploits. I might be the perfect fit if you're thinking of any of these: ✅ "I need the BEST developer who's as passionate about my success as his own." ✅ "I want someone who will walk me through every step of smart contract interaction." ✅ "Gas fees are too high! My smart contract needs to be lightning-fast and cost-efficient." ✅ "I know blockchain, but I need a professional to make my smart contracts 100% secure." ✅ "I’m not an Ethereum or Solana expert, and I don’t have time to mess around with dApps." ✅ "Our last dApp was a disaster—I can’t afford to let that happen again." ✅ "I need an EVM-compatible blockchain or Solana expert to cover all my bases for cross-chain or multi-chain applications." Working with me, you will: 💎 Gain access to a developer skilled in Python, JavaScript, TypeScript, Rust, Solidity, Brownie, Hardhat, NextJS, Foundry, and Anchor. 💎Eliminate vulnerabilities and reduce gas fees during both deployment and interactions. 💎 Maximize your DApp's security with continuous follow-ups for improvements. 💎 Save time and resources—you won’t need to hire separate back-end, front-end, Rust, or Solidity developers because I handle it all as a full-stack developer. 💎 Receive custom scripts to swap, add, or remove liquidity, lend, deposit, borrow, withdraw, and interact across top dApp protocols. 💎 Optimize for multi-chain functionality—Whether you need to bridge Ethereum, BSC, or Solana, I can create solutions that integrate seamlessly across multiple networks. 🖐 My Skills & Expertise in Blockchain: ☑️Solidity Development for EVM-compatible smart contracts ☑️Rust Development for Solana Blockchain ☑️Experience with Chainlink, various ERC standards, and OpenZeppelin ☑️Token development(ERC20/BEP20/SPL) with features like Mintable, Burnable, Reflections, TxFee, Whitelist/Blacklist, and IDO/ICO for tokens. ☑️NFTs (ERC721, ERC1155, ERC404, etc) with Whitelist, Royalties, Presale, Public Sale, Dutch Auctions, IPFS Hosting, and Dynamic NFTs ☑️Full-stack Blockchain Developer with expertise in Solidity, Python (Brownie), JavaScript (Hardhat), Typescript, Rust(Anchor), NextJS, and Foundry. ☑️Script/Program Development for deploying/interacting with smart contracts and protocols like Aave, Uniswap, Raydium, and PancakeSwap. Why Work With Me: 💎Extensive Experience: I've designed and built hundreds of smart contracts from scratch, creating robust back-end scripts for deployment. 💎Expert Problem Solver: Proficient in designing projects from the ground up, solving complex problems, and rapid iterative prototyping. 💎Gas Optimization Strategies: I use professional strategies to optimize smart contracts for minimal gas fees and thoroughly test them to identify and prevent potential exploits. My Background in Numbers: ✔️ Over 3 years of experience with Blockchain technology. ✔️ Developed numerous DApps and scripts for protocols and tokens, including ERC20, BEP20, SPL, ERC721, and ERC1155. ✔️ Worked on several growing DApp projects, such as Crowdfunding platforms, Airdrop systems, DEXs, insurance, ICO, IDO, Tokens, Lottery, and NFT marketplaces. ✔️ Created a variety of smart contracts. ✔️ Wrote extensive test scripts for smart contracts using Foundry, Hardhat, and Anchor. Sound Like a Fit? Next Steps: Click the green "Invite to Job" button in the top right-hand corner or send me a message, and let’s schedule a call to discuss your project! Otherwise, feel free to book a consultation!
$25/hr
100% Job Success
$20K+ earned
Available now
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Hi, I’m Waleed, an AI engineer and blockchain developer with over 10 years of experience in developing intelligent systems, smart automation tools and decentralized applications. While I may be new on Upwork, my journey with AI started during my undergraduate years, when AI was still emerging as “the next big thing”. I was instantly fascinated by its potential. That curiosity evolved into a career and later, a Master’s degree specializing in Artificial Intelligence. Since then, I’ve worked across a wide range of AI-powered and blockchain-based products, from LLM-based SaaS platforms to multi-agent automation systems and smart contract ecosystems. If you're building something ambitious in the AI or Web3 space, I'm here to bring it to life, reliably, efficiently and with deep technical care. 𝗖𝗢𝗥𝗘 𝗖𝗔𝗣𝗔𝗕𝗜𝗟𝗜𝗧𝗜𝗘𝗦 & 𝗦𝗞𝗜𝗟𝗟𝗦: 𝗔𝗿𝘁𝗶𝗳𝗶𝗰𝗶𝗮𝗹 𝗜𝗻𝘁𝗲𝗹𝗹𝗶𝗴𝗲𝗻𝗰𝗲 & 𝗠𝗮𝗰𝗵𝗶𝗻𝗲 𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴 • Generative AI & LLMs: GPT-4, Claude, LLaMA, Mistral, LoRA, QLoRA, DPO, diffusion models • RAG: LangChain, LlamaIndex, Pinecone, Qdrant, Weaviate, FAISS • NLP: BERT, RoBERTa, T5, XLM-R, spaCy, sentiment analysis, summarization, translation • Conversational AI: Auto-GPT, HuggingGPT, Rasa, Dialogflow, Botpress, Semantic Kernel • Computer Vision: YOLO, Detectron, DeepLab, HRNet, OpenCV, OCR, CLIP, ViT, SAM • 3D Vision: LiDAR, VoxelNet, event-based cameras • ML & Prediction: XGBoost, LightGBM, CatBoost, clustering, anomaly detection • Optimization: ONNX, TensorRT, Hugging Face Optimum, MLIR • Federated & Edge AI: TensorFlow Federated, Flower, Jetson, Edge TPU, TFLite 𝗩𝗼𝗶𝗰𝗲, 𝗔𝘂𝗱𝗶𝗼 & 𝗠𝘂𝗹𝘁𝗶𝗺𝗼𝗱𝗮𝗹 𝗔𝗜 • STT: Whisper, Google STT, Amazon Transcribe • TTS: Amazon Polly, Google TTS, Microsoft Azure TTS • Voice Agents: Pindrop, VoiceIt, call handling, emotion analysis • Multimodal AI: GPT-4 Vision, Gemini, CLIP 𝗕𝗹𝗼𝗰𝗸𝗰𝗵𝗮𝗶𝗻 & 𝗪𝗲𝗯𝟯 • Smart Contracts: Solidity, Vyper, Rust • DeFi: Yield farming, staking, AMMs, Chainlink, Switchboard • NFTs: Minting, ERC/SPL standards, IPFS, Arweave • Governance: Snapshot, Tally, Realms • Cross-Chain: Wormhole, LayerZero, Axelar • Enterprise & ZK: Hyperledger, BigchainDB, Kaleido, zkSync, StarkNet, Ceramic • Tooling: Ganache, Embark, Remix, Foundry, Geth • Analytics: Dune, The Graph, SolanaFM, Hedgehog 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 & 𝗔𝗜+𝗪𝗲𝗯𝟯 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻 • Web & SaaS: React, Next.js, FastAPI, Django, Node.js, Nest.js • Mobile & IoT: Flutter, React Native, Kotlin, Swift • Databases: PostgreSQL, MySQL, MongoDB, Firebase, Neo4j, Cassandra • Vector & Time-Series DBs: Pinecone, Qdrant, Weaviate, Milvus, TimescaleDB • Cloud & DevOps: AWS, GCP, Azure, Docker, Kubernetes, Terraform, CI/CD • Workflow & Event Streaming: Airflow, Kubeflow, n8n, Kafka, Redpanda • No-Code & APIs: n8n, Make.com, Zapier, Twilio, Vonage, Plivo, ELK Stack, Prometheus 𝗪𝗛𝗔𝗧 𝗖𝗔𝗡 𝗜 𝗛𝗘𝗟𝗣 𝗬𝗢𝗨 𝗕𝗨𝗜𝗟𝗗: ✔ AI-Powered Apps Chatbots, AI agents, voice bots, calling agents, AutoGPT systems, emotion-aware support bots, WhatsApp/Telegram AI, CRM integrations ✔ RAG & NLP Tools Legal bots, real estate assistants, medical Q&A, customer service agents, multilingual bots, document search, productivity copilots, chat over PDFs ✔ Computer Vision Solutions Real estate vision tools, blueprint digitizers, image segmentation, OCR, graphic annotation, facial recognition, LiDAR modeling, 3D vision for AR/VR ✔ Generative AI Content writing, music generation, AI art, brand design tools, voice dubbing, subtitle generation, tone adaptation, multilingual media content ✔ Blockchain & Web3 Products NFT platforms, token launches, DeFi protocols, DAO dashboards, on-chain AI agents, bridges, smart contract automation, decentralized identity ✔ Industry-Specific AI Legal tech, healthcare, education, real estate, e-commerce, HR, insurance, logistics, gaming, finance, recruitment, travel ✔ Full-Stack MVPs & SaaS AI-powered dashboards, analytics platforms, custom ERPs, IoT AI apps, real-time systems, edge deployments, scalable SaaS products Whether you're looking to develop an AI automation system, build a custom LLM-powered assistant or need blockchain development from idea to audited smart contract - I’ve got you covered. From AI MVPs to full-scale Web3 ecosystems, I bring the tools, experience and technical depth to take your product from concept to deployment.