Most AI agents that touch real money or production APIs get drained, jailbroken, or hallucinate destructive actions within their first month live. I'm the engineer who fixed that. ✅ Top Rated Plus | 100% Job Success | 8+ years shipping production AI + blockchain ✅ Author of DCP — the first open-source security layer for AI agents (2026) ✅ Founder-engineer at 1ly.store — live AI agent commerce marketplace (MCP + USDC) ✅ Clients I've engineered for have raised $43M+ combined ✅ One agent I shipped onboarded 20,000 users in week one DCP (Delegated Custody Protocol) is the project I'm most known for right now. It's a local-first encrypted vault where agents NEVER hold your keys: Agent requests → Vault approves & executes → Agent gets only the result. It's becoming the default primitive for builders shipping agents that actually do things — not just chat. ────────────────────────────────── WHAT I ACTUALLY BUILD → Production AI agents (single + multi-agent orchestration) → MCP servers and clients — custom tool integrations for any API → Agent security: sandboxing, key isolation, action approval, human-in-the-loop → RAG systems with hybrid retrieval (vector + BM25 + reranker) → Voice agents, customer support agents, autonomous commerce agents → LLM evals, tracing, red-teaming, and prod observability → Web3 ↔ AI bridges (agents that transact on-chain safely) STACK Python, TypeScript, LangGraph, CrewAI, Pydantic AI, MCP, OpenAI / Anthropic / local LLMs (Llama, Qwen), Pinecone, Weaviate, pgvector, LangFuse, Braintrust, Solidity, viem, Foundry. ────────────────────────────────── WHO I WORK WITH Funded founders and serious teams shipping real agent products to real users. If you need a chatbot demo, I'm not your guy. If you need someone who can architect, code, ship, and harden a production agent — let's talk. NEXT STEP Send me 2–3 sentences on what you're building and where you're stuck. I'll tell you within 24 hours whether I'm the right fit.

I am a Blockchain Developer/enthusiast providing Blockchain solutions to Startups and Enterprises. I review business models and help them adjust their businesses within the growing blockchain ecosystem. Blockchain consensus mechanism (POW,POS,DPOS,POC,POI), Ethereum, Bit_coin, EOS, smart contract, web3js, Node.js, eosjs, truffle framework, scatter, metamask, grin master, Rust, Solidity,c++, Java, Angular js,React JS,React Native,Redux ,hyperledger, master node. 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: ✅ Server-Side Languages: PHP, Node JS ✅ Frameworks: Express Js, YII2, Laravel, CakePHP ✅ JavaScript Frameworks: Angular Js, Jquery. ✅ Smart contract language: Solidity Data Management: ✅ RDBMS: MySQL 5.X, PostgreSQL, Amazon RDS ✅ NoSQL: MongoDB. ✅ Caching: Memcached, Redis ✅ Searching: Solr, Lucene, Elasticsearch, Amazon CloudSearch ✅ Queue: ActiveMQ, Amazon SQS ✅ Server Technologies: Linux, Ubuntu ✅ Cloud Computing Platforms: Amazon Web Services Frontend Stack: ✅ Languages: HTML5, CSS3, Sass, JavaScript ✅ UI Frameworks: Bootstrap, jQuery UI ✅ JavaScript Frameworks: React, Backbone.js, Angular 2 Third-Party APIs Integration: ✅ Payment Gateway: PayPal, Stripe, Authorize.Net, Coinpayments.net ✅ Social: Facebook, Twitter, Google+ ✅ Geo-location: Google Maps, Bing Maps ✅ 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 ✅ Crowdsale ✅ Hyperledger & Multichain Development ✅ Multichain/Supply Chain Development ✅ Custom Cryptocurrency Development ✅ Crypto App Development ✅ ICO Web Development ✅ POC Development ✅ 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 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. According to the requirement, we use many types of project management tools for the blockchain development project's communication. ✅ Upwork Message Board ✅ JIRA ✅ Azure DevOps Server ✅ Asana ✅ Trello ✅ Zoho Projects

🕰️ 𝐀𝐯𝐚𝐢𝐥𝐚𝐛𝐥𝐞 𝐢𝐧 𝐭𝐡𝐞 𝐔𝐒, 𝐂𝐚𝐧𝐚𝐝𝐚, 𝐔𝐊, 𝐀𝐮𝐬𝐭𝐫𝐚𝐥𝐢𝐚, 𝐨𝐫 𝐩𝐫𝐞𝐟𝐞𝐫𝐫𝐞𝐝 𝐭𝐢𝐦𝐞 𝐳𝐨𝐧𝐞𝐬 🏆 Top-Rated Plus (𝐓𝐨𝐩 10% 𝐨𝐧 𝐔𝐩𝐰𝐨𝐫𝐤) 🌟 7+ Years of Experience ✔ 400+ Successful Projects 🕒 2000+ Hours of Development Work ✅ Guarantee of High-Quality Product Delivery 📞 Availability: 40+ hours per week 𝐁𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐀𝐈-𝐝𝐫𝐢𝐯𝐞𝐧 𝐒𝐚𝐚𝐒 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬, 𝐛𝐥𝐨𝐜𝐤𝐜𝐡𝐚𝐢𝐧 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐬, 𝐚𝐧𝐝 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐜𝐥𝐨𝐮𝐝 𝐢𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞. My name is Ammar Haider, and I help startups and growing companies 𝐝𝐞𝐬𝐢𝐠𝐧, 𝐛𝐮𝐢𝐥𝐝, 𝐚𝐧𝐝 𝐬𝐜𝐚𝐥𝐞 𝐜𝐨𝐦𝐩𝐥𝐞𝐱 𝐬𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐬 — from AI-powered SaaS platforms to blockchain-enabled marketplaces and production-grade cloud systems. With 𝟕+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞, I specialize in 𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐡𝐢𝐠𝐡-𝐢𝐦𝐩𝐚𝐜𝐭 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 𝐭𝐡𝐚𝐭 𝐠𝐨 𝐛𝐞𝐲𝐨𝐧𝐝 𝐬𝐢𝐦𝐩𝐥𝐞 𝐰𝐞𝐛𝐬𝐢𝐭𝐞𝐬 — secure backends, scalable infrastructure, and intelligent applications designed for real users and real growth. Previously worked as a 𝐒𝐞𝐧𝐢𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 𝐚𝐭 𝐏𝐞𝐫𝐦𝐢𝐬𝐬𝐢𝐨𝐧.𝐢𝐨, where I contributed to infrastructure and production systems supporting blockchain platforms and high-traffic environments. 🎯 𝐖𝐡𝐚𝐭 𝐌𝐚𝐤𝐞𝐬 𝐌𝐲 𝐖𝐨𝐫𝐤 𝐃𝐢𝐟𝐟𝐞𝐫𝐞𝐧𝐭 Most developers can build features. I focus on 𝐞𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 𝐭𝐡𝐚𝐭 𝐬𝐜𝐚𝐥𝐞, 𝐩𝐞𝐫𝐟𝐨𝐫𝐦, 𝐚𝐧𝐝 𝐥𝐚𝐬𝐭. Clients hire me when they need someone who can: • Architect 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧-𝐠𝐫𝐚𝐝𝐞 𝐒𝐚𝐚𝐒 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 • Build 𝐀𝐈-𝐩𝐨𝐰𝐞𝐫𝐞𝐝 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 𝐚𝐧𝐝 𝐢𝐧𝐭𝐞𝐥𝐥𝐢𝐠𝐞𝐧𝐭 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 • Integrate 𝐛𝐥𝐨𝐜𝐤𝐜𝐡𝐚𝐢𝐧 𝐚𝐧𝐝 𝐖𝐞𝐛𝟑 𝐢𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 • Design 𝐬𝐞𝐜𝐮𝐫𝐞 𝐛𝐚𝐜𝐤𝐞𝐧𝐝 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 𝐚𝐧𝐝 𝐀𝐏𝐈𝐬 • Deploy and scale products on 𝐫𝐞𝐥𝐢𝐚𝐛𝐥𝐞 𝐜𝐥𝐨𝐮𝐝 𝐢𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 I bring full product engineering capability— from architecture and development to deployment and scaling. 🤖𝐀𝐈 𝐒𝐚𝐚𝐒 & 𝐈𝐧𝐭𝐞𝐥𝐥𝐢𝐠𝐞𝐧𝐭 𝐖𝐞𝐛 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨 I build modern AI-powered SaaS platforms and intelligent applications that integrate machine learning and automation into real business workflows. ✅ Experience includes: • AI-driven SaaS platforms • LLM integrations (OpenAI, embeddings, RAG pipelines) • AI automation and internal productivity systems • Intelligent data processing • AI chat systems and assistants • Scalable inference APIs 𝐓𝐞𝐜𝐤 𝐬𝐭𝐚𝐜𝐤𝐬: Node.js / Python / FastAPI React / Next.js / TypeScript OpenAI / LangChain workflows PostgreSQL / Redis 🌐 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐖𝐞𝐛 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧 I design and build modern, scalable web applications with clean architecture and maintainable codebases. ⚛️Frontend React.js Next.js TypeScript TailwindCSS Redux 🛠️Backend Node.js (Express / NestJS) Python (Django / FastAPI) REST APIs GraphQL APIs 🗄️Databases PostgreSQL MongoDB MySQL Redis Firebase 🧊 𝐖𝐞𝐛𝟑 / 𝐁𝐥𝐨𝐜𝐤𝐜𝐡𝐚𝐢𝐧 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 I help companies build **real blockchain products**, not just token demos. Capabilities include: • Smart contract development (Solidity / Rust) • NFT marketplaces • Token systems (ERC-20 / ERC-721) • DeFi integrations • Wallet integrations (MetaMask / WalletConnect) • On-chain / off-chain system architecture • Blockchain backend services 𖢻 Networks experience: Ethereum Polygon ♾️ 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐂𝐥𝐨𝐮𝐝 𝐈𝐧𝐟𝐫𝐚𝐬𝐭 My DevOps background allows me to **build and operate production systems properly**. ☁️ Cloud platforms AWS GCP AZURE 🧠Infrastructure expertise Docker Kubernetes Terraform CI/CD pipelines GitHub Actions GitLab CI Jenkins ✨Services: AWS EC2 AWS Lambda AWS RDS S3 CloudFront GKE Cloud Functions 🚀 𝐒𝐞𝐥𝐞𝐜𝐭𝐞𝐝 𝐏𝐫𝐨𝐝𝐮𝐜𝐭 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 I have contributed to a wide range of complex platforms including: • AI-driven SaaS products • Blockchain token platforms • Real estate marketplaces • ERP and CRM systems • Multi-vendor e-commerce marketplaces • Booking platforms • Healthcare systems • HR and recruitment platforms • Learning management systems Many of these systems required high-scale backend architecture and secure production infrastructure. AI SaaS Developer, Full Stack, Node.js, React, Blockchain, Web3, Smart Contract, DevOps Full Stack Developer, MERN Stack Developer, Blockchain Developer, Smart Contract Engineer, App Developer, Web3 Developer, React Developer, Node.js Developer, API Integration, DevOps Engineer, Cloud Hosting Expert, RESTful API Developer, Developer, E-commerce Website

Over the past 21+ years I have worked across early web systems, enterprise software, blockchain platforms, and AI. These days I spend most of my time helping founders and product teams figure out what they actually need to build, and then building it with them. I enjoy making complex technology feel straightforward. That is something clients come back for. I have spent 10+ years deep in blockchain and the last few fully focused on AI. I can connect those two worlds in ways most developers cannot. Clients tell me they appreciate that I do not just execute tasks. I ask questions, flag things that have not been considered yet, and keep the bigger picture in view throughout the project. ARTIFICIAL INTELLIGENCE AND GENERATIVE AI • AI Agents and Multi-Agent Systems using LangGraph, CrewAI, and AutoGen for task automation, research, and business process orchestration • RAG pipelines and enterprise knowledge platforms using Pinecone, Weaviate, Qdrant, and ChromaDB • LLM integration across OpenAI, Claude, Gemini, and open-source models into real business workflows • MCP, prompt engineering, context management, and agentic workflow architecture • AI-powered trading platforms with ML signal generation, backtesting, risk management, and live execution • NLP, sentiment analysis, OCR, document intelligence, and intelligent workflow automation • Computer Vision for object detection, video analytics, behavioral analysis, and real-time event detection • Model deployment, inference optimization, evaluation frameworks, and production AI infrastructure • Backend systems for AI using FastAPI, Flask, Django, GoLang, and Rust BLOCKCHAIN AND WEB3 • 10+ years across Ethereum, Solana, Polygon, BSC, Tron, Flow, Hyperledger Fabric, Stellar, TON, Bittensor, and Aptos • End-to-end Web3 platforms including DeFi protocols, NFT marketplaces, custodial and non-custodial wallets, DEXs, and dApps • Smart contracts in Solidity, Rust, and Cadence covering ERC-20, ERC-721, ERC-1155, security reviews, and audits • Token launches including ICO, IDO, and IEO ecosystems, tokenomics design, and exchange integrations • Whitepapers, governance models, and go-to-market strategy for public, private, and consortium networks • Layer 2 scaling, cross-chain bridges, and gas optimization • Full project lifecycle from architecture and security design through to production delivery PROJECT HIGHLIGHTS • Built a multi-agent RAG system for an enterprise client processing 1M+ internal documents, reducing research time by 70 percent • Delivered an LLM-powered support agent using OpenAI and LangGraph handling 10,000+ queries per month with over 90 percent deflection rate • Architected an AI algorithmic trading platform with ML signal generation and live multi-exchange execution • Built an automated crypto trading bot running across Binance, Bybit, and OKX with real-time risk management • Designed and deployed a DeFi lending protocol on Ethereum with 5M+ TVL including liquidation engine and governance • Delivered a supply chain traceability platform on Hyperledger Fabric tracking 500,000+ assets annually • Led end-to-end delivery of multiple NFT marketplace platforms with minting, auction, royalty, and secondary market features • Built a real-time Computer Vision productivity monitoring system deployed across 500+ workstations • Delivered an OCR and NLP document processing pipeline that reduced manual data entry by 85 percent for an insurance client INDUSTRIES SERVED FinTech and Trading | DeFi and Crypto | Enterprise SaaS | Healthcare and MedTech | Supply Chain | Real Estate | E-Commerce | Legal and Compliance | Media Platforms HOW I WORK • I ask a lot of questions upfront, not to slow things down, but because the right questions save weeks later • I am easy to talk to, even on technical topics. Non-technical founders tell me I make things click for them • You will always know where the project stands. I do not go quiet and reappear with a finished build • I have worked with clients across the US, Europe, the Middle East, and Asia. Async communication is second nature to me CORE TECH STACK AI and ML: Python, LangChain, LangGraph, CrewAI, AutoGen, OpenAI, Claude, Gemini, HuggingFace, Pinecone, Weaviate, Qdrant, ChromaDB, FastAPI, Flask, Django Blockchain: Solidity, Rust, Cadence, Web3.js, Ethers.js, Hardhat, Foundry, Anchor, Truffle Backend and Infrastructure: GoLang, Node.js, .NET, Docker, Kubernetes, AWS, GCP, Azure Frontend: React, Next.js, TypeScript If you are not sure exactly what you need yet, that is fine. That is usually where the best conversations start. Send me a message and we will figure it out together.

I build Agentic AI systems that don’t just respond but they think, decide, and execute real business workflows end-to-end. In simple terms, I help businesses replace repetitive work and manual processes with intelligent AI systems powered by GPT-4, automation tools, and autonomous agents. My focus is on combining Generative AI + AI Automation + Agentic workflows to create systems that can: - Understand tasks and break them into steps - Make decisions using LLM-based reasoning - Trigger actions across tools (CRMs, APIs, databases, SaaS platforms) - Automate entire workflows with minimal human input What I build I specialize in building production-ready AI systems such as: - AI agents for customer support, sales, and operations - GPT-powered internal tools for businesses and SaaS platforms - Automated workflows using APIs, Zapier/Make, and custom backend logic - Multi-step AI systems that can research, decide, and execute tasks - Chat-based assistants connected to real business data (not just static chatbots) I come from a strong technical background in building web systems and backend-driven applications, which allows me to design AI solutions that are not just experimental but production-ready, scalable, and business-aligned. If you're looking to move beyond basic chatbots and into real AI-driven automation and agentic systems, I can help you design and build it from the ground up.

🏆 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

I help founders build fast, scalable web and mobile products — and I also step in when AI-generated apps need a real engineer. If you’ve built something with Claude, Lovable or other AI app builders and now need someone to ship it properly, that’s exactly what I do. I help Founders Scale with 𝐒𝐚𝐚𝐒 𝐌𝐕𝐏𝐬, 𝐀𝐈 𝐀𝐠𝐞𝐧𝐭𝐬, 𝐚𝐧𝐝 𝐖𝐞𝐛 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 using React, Next.js, Node.js, TypeScript. As a Full Stack Developer & AI Engineer, I specialize in multi-tenant SaaS platforms, intelligent automation, AI integrations, and scalable applications 𝐭𝐡𝐚𝐭 𝐬𝐨𝐥𝐯𝐞 𝐜𝐨𝐦𝐩𝐥𝐞𝐱 𝐩𝐫𝐨𝐛𝐥𝐞𝐦𝐬, 𝐜𝐫𝐞𝐚𝐭𝐞 𝐛𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐯𝐚𝐥𝐮𝐞, 𝐚𝐧𝐝 𝐝𝐞𝐥𝐢𝐯𝐞𝐫 𝐨𝐮𝐭𝐬𝐭𝐚𝐧𝐝𝐢𝐧𝐠 𝐮𝐬𝐞𝐫 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞𝐬. 🎯 𝐈 𝐩𝐨𝐬𝐬𝐞𝐬𝐬 𝐞𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 𝐢𝐧 𝐭𝐡𝐞 𝐟𝐨𝐥𝐥𝐨𝐰𝐢𝐧𝐠 𝐝𝐨𝐦𝐚𝐢𝐧𝐬 • Frontend: React, Next, TypeScript, JavaScript, Tailwind CSS. • Backend: Node.js, Nest.js. • AI: OpenAI, Anthropic, LangChain, LanGraph, RAG pipelines, embeddings • Cloud/DevOps: AWS, Docker, Kubernetes, CI/CD, Serverless, Terraform • Data: PostgreSQL, MySQL, MongoDB, DynamoDB, Firebase, Supabase • Integrations: Stripe, PayPal, Auth0, social APIs, SendGrid, Socket io WHAT I BUILD FOR YOU → Full-Stack Web Apps (React, Next.js, Node.js, TypeScript) → AI-powered SaaS and MVPs, multi-tenant, Stripe billing, RBAC, row-level security, architected to scale from day one → AI agents, Voice Ai Agents, RAG systems, and intelligent automation on OpenAI, Claude, Gemini, and LangChain, built around your business logic, not wrapper demos → HIPAA-compliant healthtech, HL7, FHIR, EMR integration, clinical workflows to US standards → Fintech infrastructure, event-sourced ledgers, escrow, payments, audit-grade reliability → Crypto & Web3 Platforms, token dashboards, crypto payment integrations, wallet connections, and DeFi ready backends built for speed and security. → API and system integration, REST, GraphQL, webhooks, CRM and ERP, into existing and legacy codebases → Cloud and DevOps, AWS, Docker, CI/CD, production deployments that hold up under load What I help fix • messy AI-generated code • weak architecture and logic issues • performance bottlenecks • broken integrations • poor scalability • unfinished apps that need a senior engineer to take them across the finish line 𝐈 𝐭𝐚𝐤𝐞 𝐭𝐡𝐞 𝐜𝐥𝐢𝐞𝐧𝐭'𝐬 𝐟𝐞𝐞𝐝𝐛𝐚𝐜𝐤 𝐬𝐞𝐫𝐢𝐨𝐮𝐬𝐥𝐲, 🎁 A 100% refund, if I'm unable to meet our agreed commitments. No questions asked! 💬 Ready to build? Send me a message, I will Provide you a 30min free consultation and I’ll help you move from “We want” to “This is the right Solution for our business.” Thank you for visiting my profile. Looking forward to working with you!. For reference, you can see my work and testimonials below. Lets Chat! Keywords to find me on Upwork: Full Stack AI Engineer, AI SaaS Developer, SaaS MVP Developer, Blockchain Developer, Next.js Developer, React Developer, Node Developer, TypeScript Developer, Supabase Developer, Vercel Developer, Tailwind CSS Developer, AI App Developer, OpenAI Developer, LLM Developer, RAG Developer, LangChain Developer, Chatbot Developer, AI Agent Developer, MVP Developer, Web App Developer, API Integration Developer, Stripe Integration Developer, Performance Optimization, Code Review, App Debugging, Internal Tools Developer, Startup App Developer.

𝗛𝗶 𝗨𝗽𝘄𝗼𝗿𝗸 👨‍💻 ✋ Greetings! I help Web3 projects and startups build secure, scalable blockchain solutions, now powered with AI automation, intelligent agents, and n8n workflows. With 9+ years in market and 3+ years of aggressive full-time Blockchain & Web3 delivery on Upwork (Top Rated), I’ve successfully delivered 40+ projects involving Solana, EVM chains, Substrate/Polkadot, smart contracts, dApps, DeFi, and token launches. In the past year, I’ve deeply expanded into AI automation: • n8n workflows for on-chain monitoring, automated trading, NFT minting & data pipelines • LLM-powered AI chatbots & agents (Telegram, Discord, Web3 dApps) • AI-integrated Web3 solutions that reduce manual work and create smarter products Core Expertise: - Blockchain: Solidity, Rust (Anchor), Substrate, Solana, EVM, Smart Contracts, DeFi, NFTs, dApps - AI Automation: n8n, OpenAI, Claude, Gemini, AI Agents, LLM Integration - Full-Stack: Next.js, React, Node.js, Python + Blockchain backend I don’t just develop, I deliver complete intelligent systems that launch faster, operate cheaper, and stand out in the 2026 market. Let’s discuss your project and build the next generation of AI-powered Web3 products. So, what we are waiting for, let's proceed further and build long term relationships. My skills are at your service! Regards, Hamza Yasin Founder of Quantum Bases | Listed on Toptal Marketplace as a "Vetted Engineer" | Top Rated on Upwork | Registered Tech Partner of Base44

I work with startups and businesses to build blockchain products, AI-powered systems, and scalable web applications that are designed for real users ........... not just technical demos. Over the last 8+ years, I’ve helped clients develop everything from DeFi platforms and crypto wallets to automation systems, AI integrations, and full-scale SaaS products. My focus is always on building products that are secure, practical, and ready to grow. I enjoy working closely with founders and teams who care about creating solid long-term products, whether that means launching a new Web3 platform, improving an existing application, or integrating AI into business workflows. Areas I Commonly Work On Blockchain & Smart Contract Development Web3 Applications AI Agents & Workflow Automation DeFi & Crypto Platforms NFT & Tokenization Projects Full-Stack SaaS Development API & Backend Architecture Product Scaling & Optimization Tech Stack Blockchain: Solidity, Ethereum, Solana, Rust, Hyperledger, Web3.js, Ethers.js Frontend: React.js, Next.js, TypeScript, TailwindCSS Backend: Node.js, NestJS, Python, Go, REST APIs What You Can Expect Working With Me Clear communication Reliable delivery timelines Clean, maintainable code Attention to performance and scalability A practical approach focused on business goals I prefer building long-term working relationships and contributing to projects where thoughtful engineering and product quality actually matter. If you have an idea you’re exploring or a product you want to improve, feel free to reach out.

Blockchain is easy to pitch. Building something people actually use is where things get interesting. Over the last 10+ years, I've worked across software engineering, product development, and blockchain infrastructure, helping startups and businesses turn ideas into working products. A large part of my recent work has focused on: • Carbon Credit Tokenization • Real Estate Tokenization • RWA (Real World Asset) Platforms • Smart Contracts • DeFi Applications • Web3 Products • Exchange & Trading Infrastructure I've worked on projects ranging from token ecosystems and blockchain integrations to SaaS platforms, backend systems, automation tools, and customer-facing applications. One thing I've learned over the years is that most projects don't fail because of technology. They fail because requirements aren't clear, complexity gets out of control, or important technical decisions are postponed until they become expensive. That's usually where I get involved. Sometimes it's a new product. Sometimes it's an existing platform that needs to scale. Sometimes it's a project that's been through multiple developers and needs a practical way forward. What I Can Help With: Asset Tokenization & RWA ✔ Carbon Credit Platforms ✔ Real Estate Tokenization ✔ Fractional Ownership Models ✔ Asset-Backed Token Solutions ✔ Investor Portals ✔ RWA Infrastructure Blockchain & Web3 ✔ Smart Contract Development ✔ ERC20 / BEP20 Tokens ✔ Wallet Integrations ✔ dApps ✔ DeFi Platforms ✔ NFT Infrastructure ✔ Web3 Integrations ✔ Staking & Reward Systems Exchange & Trading Systems ✔ Crypto Exchanges ✔ Matching Engine Integrations ✔ Trading Platforms ✔ Wallet Management ✔ Payment Processing Software Engineering ✔ SaaS Platforms ✔ Backend Systems & APIs ✔ AI Integrations ✔ Automation Solutions ✔ Cloud Infrastructure ✔ System Architecture ✔ Database Design & Optimization Technology Stack Blockchain: Solidity, Ethereum, Web3, DeFi, ERC20, BEP20, Tokenization, RWA Infrastructure Backend: Node.js, TypeScript, PHP, Laravel, Python, REST APIs, GraphQL, Microservices Frontend: React, Next.js, JavaScript Infrastructure: AWS, Docker, Linux, CI/CD Databases: PostgreSQL, MySQL, MongoDB, Redis Clients Usually Reach Out When • They need an RWA or tokenization platform built correctly from the start • A blockchain product needs experienced technical leadership • Smart contracts require implementation or integration • Existing systems need blockchain functionality • Development has slowed down and technical direction is unclear • An MVP needs to become a production-ready product • They need someone who can take ownership rather than simply complete tasks If you're building something in blockchain, tokenization, Web3, or adjacent technologies and need someone who can contribute beyond implementation, I'd be happy to discuss it.