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Hey 👋 I am a Blockchain and Full-Stack Developer with 5+ years of experience building Web3 applications, DeFi protocols, NFT marketplaces, smart contracts, and scalable backend systems. I help startups and businesses turn ideas into secure, production-ready blockchain and web applications, from smart contracts to full dApps and mobile apps. If you're looking for a Solidity developer, Web3 developer, or full-stack developer who understands both blockchain architecture and real-world product development, I can help. 🔗 Blockchain Development (Solidity | Rust | Web3) I design, develop, and deploy secure smart contracts and decentralized applications across multiple chains: Ethereum | BSC | Polygon | Avalanche | Base | Optimism | Solana Experience with: ERC-20, ERC-721, ERC-1155 token development DeFi protocols (staking, farming, vaults, liquidity pools) NFT marketplaces & minting platforms Generative NFT collections Smart contract auditing mindset (security + gas optimization) 🛠 Full-Stack Development (Node.js | Spring Boot | APIs) I build scalable backend systems and REST APIs using: Node.js (Express / NestJS) Java Spring Boot (enterprise-grade systems) REST & GraphQL APIs Microservices architecture (where needed) Databases: PostgreSQL MySQL MongoDB Firebase 🔌 Web3 / dApp Integration I create seamless blockchain user experiences using: Ethers.js / Web3.js Smart contract integration Wallet integrations: MetaMask, WalletConnect, Coinbase Wallet, Phantom, Unisat, Xverse Focus: simple UX for complex blockchain systems 📱 Mobile App Development (React Native / Expo) Cross-platform mobile apps for iOS and Android using a single codebase. Built apps include: Portfolio project: SPORTAINMENT App for both Android and IOS Web3 / crypto apps E-commerce apps Dashboard & utility apps Performance-focused, scalable, and production-ready. 🎨 Frontend Development React.js (Material UI / Chakra UI) Vue.js (Quasar Framework) Focus on clean UI, responsive design, and user-friendly interfaces. ☁️ Cloud & DevOps (AWS / GCP) Production deployment and infrastructure setup using: AWS (EC2, S3, Lambda, RDS, CloudFront, API Gateway) Google Cloud Platform (storage & deployment) I can set up full scalable architecture from backend to deployment pipelines. 🚀 Why clients hire me Strong experience in DeFi, NFT, and Web3 ecosystems Full-stack capability (frontend + backend + blockchain) Production-ready mindset (security, scalability, performance) Clear communication and long-term collaboration I don’t just deliver code, I help build real, usable, scalable products. If you're looking for a Web3 developer, Solidity developer, or full-stack blockchain engineer, feel free to reach out. I’d be happy to discuss your project.

Most developers write code. I build products. I work with founders and startups to design and ship full-stack web applications from early MVP to production-ready systems. I specialize in AI-powered apps, SaaS platforms, and blockchain integrations, handling everything from backend architecture to frontend interfaces so you get one person who owns the whole thing. I've shipped apps with 1M+ downloads, built AI-powered SaaS tools, crypto wallets, and Web3 platforms all the way to production. No handoffs, no coordination overhead, just clean systems that work. If you have an idea and need someone who can run with it end to end, send me a message and let's figure out the right approach together. 𝗣𝗲𝗼𝗽𝗹𝗲 𝘂𝘀𝗲 𝘁𝗵𝗲𝘀𝗲 𝗸𝗲𝘆𝘄𝗼𝗿𝗱𝘀 𝘁𝗼 𝗳𝗶𝗻𝗱 𝗺𝗲 ───────────────────────────── React | Next.js | Node.js | NestJS | Flutter | React Native | Solidity | Python | FastAPI | MongoDB | Firebase | PostgreSQL | REST API | GraphQL | WebSockets | OpenAI API | LangChain | RAG Pipeline | XRPL | Smart Contracts | ERC-20 | ERC-721 | ERC-4626 | WalletConnect | Web3.js | Ethers.js ───────────────────────────── SaaS | DeFi | HealthTech | FinTech | EdTech | PropTech | AgriTech | Web3 | NFT Marketplace | RWA Tokenization | Crypto Wallet | DEX | DAO Governance | Real Estate Tech | AI Startup ───────────────────────────── MVP Development | Full-Stack Development | API Development | Smart Contract Development | Mobile App Development | AI Integration | LLM Integration | Blockchain Development | Token Launch | Product Architecture | SaaS Build | End-to-End Delivery ───────────────────────────── AI | Web3 | Blockchain | LLM | GPT | Machine Learning | Automation | DeFi | NFT | Tokenization | OpenAI | Claude API | Agentic AI | No-Code AI | Prompt Engineering

Need AI added to your app, a workflow automated, or an MVP finished? I can help you scope it, build it, and ship it without overcomplicating the first milestone. I build AI products that survive real users, real data, and real business workflows: SaaS MVPs, AI agents, RAG systems, voice AI, and automation inside existing products. ⭐ Top Rated Plus | Top 3% of performers on Upwork ✅ 10+ years building SaaS and AI products | 100+ projects delivered ✅ AI that ships: RAG, AI agents, MCP, Voice AI, LLM integration ✅ Full stack: Next.js, React, TypeScript, Python, Node.js, PostgreSQL, AWS ✅ SaaS, MVPs, automation, fintech, healthcare, construction, legal tech, and sales products You can hire me when: - You need one AI feature added to an existing app - You want OpenAI, Claude, Gemini, or MCP integrated into your product - You need a RAG system over PDFs, documents, knowledge bases, or internal data - You want a voice AI agent for calls, bookings, lead qualification, or CRM updates - You have a workflow involving documents, calls, follow-ups, data entry, or reporting that should be automated - Your MVP is half-built, buggy, slow, or stuck before launch - You need someone to build a full SaaS product from idea to deployment I work well on both small and large projects. If the right first step is a quick audit, prototype, bug fix, integration, or one-week milestone, I will tell you that. If the project needs a full build, I can own the architecture, frontend, backend, AI layer, deployment, and documentation. The part most AI freelancers skip: AI is rarely the whole product. It usually needs a backend, dashboard, auth, billing, permissions, logs, human review, and deployment around it. I build both the AI layer and the product around it. WHAT I DO: - AI SaaS & MVP builds: idea to deployed product with auth, billing, dashboards, and AI layer - AI inside existing products: RAG, agents, MCP, LLM features, document AI, and automation - Voice AI: agents that answer calls, book appointments, qualify leads, and log to your CRM - RAG and document AI: source-grounded answers, OCR, extraction, citations, and review queues - Workflow automation: documents, follow-ups, data entry, reporting, and API integrations - Rescue & ship: half-built MVPs refactored, hardened, and launched RECENT DELIVERIES: - AI sales CRM: call transcription, follow-up automation, multi-tenant pipelines - RAG document platform with every answer cited to source - AI financial intelligence platform: open banking + accounting sync into one ledger - AI voice agents for healthcare and sales, answering real calls daily - Turnkey B2B SaaS platform for the construction industry, end to end HOW I WORK: - I start by understanding the workflow, users, data, and business goal - I suggest the smallest useful first milestone when possible - I scope clearly before code is written, so you know cost and timeline up front - I can work on focused tasks, short prototypes, rescue work, or full product builds - I work full time on Upwork with overlap for US and European business hours If you need one AI feature, a quick prototype, a stuck MVP fixed, or a full SaaS product built, send me a short description of what you have and what you want it to do. I will reply with the clearest next step, the likely scope, and the first milestone I would recommend. Tech Stack: AI and LLM: OpenAI, Claude, Gemini, LangChain, LangGraph, CrewAI, MCP, function calling, model routing RAG and vector search: RAG pipelines, embeddings, semantic search, pgvector, Pinecone, document AI, OCR AI agents and automation: multi-agent systems, AI copilots, workflow automation, document extraction with review queues AI reliability: evaluation sets, hallucination reduction, human-in-the-loop workflows Voice AI: Vapi, Retell, ElevenLabs, Deepgram, OpenAI Realtime, Twilio Frontend: Next.js, React, TypeScript, Tailwind CSS, React Native Backend: Node.js, Python, FastAPI, REST and GraphQL APIs, WebSockets Databases: PostgreSQL, Supabase, Redis, MongoDB SaaS architecture: multi-tenant, tenant isolation, RBAC, Stripe billing, admin dashboards Cloud and DevOps: AWS, Docker, Vercel, CI/CD, monitoring Security and compliance: OAuth2, JWT, encryption, audit logs, HIPAA-aware builds, KYC/AML flows Integrations: Stripe, Plaid, open banking APIs, QuickBooks, Xero, Twilio, CRMs, ERPs Industries: AI SaaS, AI agents, document AI, RAG, FinTech, open banking, healthcare, B2B SaaS, startup MVPs, construction tech, legal tech, sales and CRM automation, voice AI, recruiting

🚀 Need a developer who can actually deliver, communicate clearly, and build software that scales? I'm Syed Ahmad, a Senior Full Stack & Blockchain Developer with 10+ years of experience helping startups, founders, and businesses turn ideas into production-ready products. Many clients come to me after dealing with missed deadlines, poor code quality, unreliable developers, or projects that became impossible to maintain. My goal is simple: build clean, scalable software, keep communication transparent, and help you launch successfully. What I Specialize In Full Stack Development React.js Next.js Node.js TypeScript Express.js Angular MongoDB PostgreSQL MySQL REST APIs GraphQL SaaS Platforms Custom Web Applications From startup MVPs to large-scale business platforms, I build applications that are fast, secure, and built for growth. Blockchain & Web3 Development Smart Contracts Solidity NFT Marketplaces NFT Minting & Staking Platforms DeFi Applications DApps Token Development Wallet Integrations Ethereum Polygon Solana Web3.js Ethers.js Whether you're launching a Web3 startup, NFT platform, staking system, or blockchain-powered application, I can help build the entire ecosystem from frontend to smart contracts. Payment & Subscription Systems Stripe Stripe Connect PayPal Subscription Billing Marketplace Payments Custom Payment Flows Industries I've Worked With Blockchain & Crypto SaaS Platforms FinTech Healthcare E-commerce Marketplaces Property Management Logistics & Supply Chain LegalTech Why Clients Work With Me ✅ 10+ Years of Professional Experience ✅ Clean, Scalable, Maintainable Code ✅ Strong Communication & Regular Updates ✅ Fast Problem Solving & Reliable Delivery ✅ Experience Taking Products from MVP to Launch ✅ Long-Term Partnership Mindset I don't just write code. I help businesses make smart technical decisions, avoid costly mistakes, and build products that are ready for real users. If you're looking for a developer who can take ownership, understand your goals, and turn ideas into successful products, I'd love to discuss your project. Let's build something great together.

Hey, I’m a certified blockchain dev (BTA) who’s been building smart contracts, Web3 apps, and automation tools on Ethereum and Solana for the past few years. I’ve worked on everything from utility tokens and NFT platforms to automating real-time alerts and building systems that connect on-chain logic with off-chain services. A few projects I’ve built have gone live, sold out fast, and are still running strong. Here’s what I usually work on: Smart contract development (Solidity, anchor) Full-stack dApps (React, Firebase, Firestore, web3.js, etc.) Web3 integrations (wallets, transactions, token gating) Solana tools and automation (wallet listeners, volume trackers, basic bot logic) Telegram integrations for updates/alerts I like working on creative ideas, especially if you're building something fresh in the Web3 space. Whether you’re planning a launch, building a utility around your token, or need backend logic tied to on-chain activity—I can help make it happen. Let’s build something solid.

20+ smart contracts deployed on Ethereum, BSC, and Polygon. Zero failed audits. 100% client satisfaction. I build production-ready Web3 products — DeFi staking platforms, token launches (ERC-20/SPL), NFT ecosystems, and full dApp frontends using Next.js + Solidity. Not just smart contracts — complete, deployed, working products. I have expertise in building scalable web apps using React.js, Next.js, Node.js, and integrating them with blockchain solutions on Ethereum, BSC, Polygon, and Solana.I build production-ready Web3 apps: smart contracts, NFT minting, DeFi dashboards, wallet integrations (MetaMask, WalletConnect). 𝐖𝐇𝐀𝐓 𝐈 𝐁𝐔𝐈𝐋𝐃: ✔ DeFi Platforms (staking, yield, liquidity) ✔ Token Launches (ERC-20, BEP-20, SPL — presale to DEX listing) ✔ NFT Collections + Minting Sites + Marketplace Integration ✔ Full Stack dApps (Next.js + Ethers.js + Solidity) ✔ Wallet Integration (MetaMask, WalletConnect, Phantom) ✔ Cross-chain Solutions (ETH, BSC, Polygon, Solana) ✔ Smart Contract Auditing & Security Review If you need it built right, deployed on time, and working in production — let's talk. Saba