Hi Employers! I'm Usama Saleem - a university educated web, blockchain developer and graphic designer, working in the business for more than 4 years. Experienced essentially in Website development and UI/UX plan. How about we reach out and make some cool stuff together!

I build production-grade software at the intersection of AI, fintech, and blockchain. My work spans the full stack — from backend architecture and API design to polished React frontends — with a focus on systems that handle real money, real data, and real users. Past and current work includes an AI-powered personal health platform with food analysis and a token reward economy; and a custodial crypto trading platform integrating Cobo WaaS 2.0 for a funded fintech startup. What I deliver for clients: AI-integrated applications — Gemini, OpenAI, and Claude APIs wired into production products Crypto exchange infrastructure — Trading platform with rest API & websocket order execution, Cobo WaaS 2.0 MPC custody, KYC integration, VARA licensing support Algorithmic trading systems — MQL4/MQL5 EAs, Python ML pipelines, live deployment on IC Markets and similar brokers Full-stack web and desktop applications — React/Vite frontends, Node.js/Express backends, Supabase (PostgreSQL), deployed on Vercel, Railway, and AWS Smart contracts and dApps — Solidity, Rust, Web3.js, ethers.js across EVM chains and Solana I work independently, communicate clearly, and ship. 100% Job Success · Top Rated Plus. Stack: TypeScript · Node.js · React · Python · MQL5 · Solidity · Supabase · AWS · Cobo & Fireblocks WaaS · Vite · Vercel · Railway

We build systems where AI and Web3 actually work together in production. Not separate layers. Not experimental features. Fully integrated systems where AI drives execution and blockchain ensures automation, transparency, and scale. As the team behind Xord, we operate as an execution partner for startups, SaaS platforms, and Web3 protocols. What We Do AI Agents & Automation Systems Multi agent systems that handle research, execution, reporting, and operations 20 plus AI agents deployed across sales, content, and operational workflows Agent orchestration systems with memory, task routing, and output evaluation Web3 & DeFi Infrastructure Smart contracts and DApps across EVM and Solana ecosystems 28 plus DApps delivered including DeFi protocols, NFT platforms, and analytics systems Liquidity systems and DeFi infrastructure handling over 33M TVL across products AI × Web3 Systems AI driven execution layers on top of onchain systems Automation for trading, liquidity management, and data pipelines Intelligent interfaces for interacting with smart contracts and blockchain data Backend & Production Systems Scalable backend architecture for AI and blockchain systems Production ready infrastructure with monitoring, failover handling, and system reliability What We’ve Built DeFi products scaled to 33M plus TVL with automated liquidity strategies and onchain execution AI sales systems where leads are captured, qualified, nurtured, and converted with minimal human input Multi agent AI systems running content, outreach, SEO, and reporting across platforms with near continuous uptime RAG based AI systems trained on thousands of documents and structured datasets for accurate decision support Automation pipelines integrating CRM, analytics, and communication tools into unified workflows How We Think Most teams build features We build systems that run AI without execution is noise Web3 without usability is dead The value is in combining both into systems that operate continuously, make decisions, and execute actions at scale Where We Are Different We do not treat AI and Web3 as separate services We design systems where AI handles intelligence and execution Blockchain ensures ownership, transparency, and trust Everything is built for production Not demos Not experiments Tech Stack AI LangChain, OpenAI, Claude, RAG pipelines, multi agent systems n8n, Make, workflow automation Web3 Solidity, Rust, EVM, Solana DeFi protocols, cross chain systems Backend Python, Node.js, FastAPI APIs, microservices, event driven systems Who This Is For Startups building AI driven or Web3 native products DeFi teams looking to integrate intelligence into protocols SaaS platforms adding automation and AI driven workflows Teams that want execution, not just development Closing If you are building at the intersection of AI and Web3, you need systems that go beyond prototypes and actually operate at scale That is exactly what we deliver Send your use case and we will map how to build it right

⭐⭐⭐⭐⭐ "Jawed exceeded expectations by delivering scalable Web3 solutions that revolutionized our business. A truly exceptional developer." – Alex T., SaaS Founder With over 12+ years of experience, I am a versatile developer specializing in Blockchain, Cryptocurrency, & Full-Stack Development. From crafting smart contracts and DeFi platforms to developing user-friendly web & mobile applications, I empower businesses to thrive in the Web3 era. I deliver cutting-edge blockchain solutions & scalable full-stack systems tailored to meet your unique business needs. Whether you need a custom dApp, secure tokenomics, or a high-performance MERN stack platform, I bring expertise and innovation to every project. 🌟 Core Expertise: ✅ Blockchain Development - Smart Contracts: Expertise in Solidity and Rust for Ethereum, Solana, and Polygon. - DeFi Protocols: Liquidity pools, staking systems, and yield farming. - Web3 Integrations: Wallets (MetaMask, Phantom) and blockchain APIs. - NFT Marketplaces: Custom platforms for minting, trading, and showcasing NFTs. - Decentralized Applications (dApps): Secure and scalable dApps for industries like gaming, e-commerce, and finance. ✅ Full-Stack Development - Frontend: React.js, Next.js, and TailwindCSS for sleek, responsive user interfaces. - Backend: Node.js, Express.js, GraphQL, & FastAPI for scalable APIs. - Database Management: MongoDB, PostgreSQL, and Firebase for optimized data handling. ✅ Crypto-Specific Solutions - Token Development: ERC20, ERC721, ERC1155, and SPL tokens. - Blockchain Analytics: On-chain data processing and visualization. - Multi-Chain Integration: Ethereum, Solana, Binance Smart Chain, and Polygon. - Crypto Wallet Integration: Seamless connections for MetaMask, Phantom, and other wallets. ✅ DevOps & Cloud Solutions - CI/CD Pipelines: Expertise in Jenkins, GitHub Actions, and AWS CodePipeline. - Docker & Kubernetes for scalable, containerized deployments. - Cloud Platforms: AWS, GCP, and Azure for hosting and scaling blockchain systems. 🌟 Recent High-Impact Projects: 1️⃣ DeFi Yield Farming Platform ✅ Challenge: Develop a secure platform for staking and liquidity farming with dynamic rewards. ✅ Solution: Designed custom Solidity smart contracts and integrated Web3.js for real-time staking management. ✅ Result: Achieved $20M+ in Total Value Locked (TVL) and a 30% increase in user retention. 2️⃣ NFT Marketplace ✅ Challenge: Launch a multi-chain NFT marketplace with minting & auction capabilities. ✅ Solution: Built an intuitive React.js frontend, integrated with Ethereum and Solana smart contracts. ✅ Result: Enabled 100k+ NFTs minted and traded within the first 6 months. 3️⃣ Cross-Chain Payment Gateway ✅ Challenge: Create a seamless crypto payment gateway for e-commerce platforms. ✅ Solution: Developed a multi-chain solution with wallet integration (MetaMask, Phantom) and real-time transaction monitoring. ✅ Result: Processed over $5M in transactions within the first quarter. 4️⃣ E-Commerce Blockchain Loyalty Program ✅ Challenge: Develop a blockchain-based loyalty rewards system for an e-commerce platform. ✅ Solution: Designed a decentralized loyalty program using smart contracts and integrated with Web3 for real-time tracking. ✅ Result: Boosted customer retention by 40%. 🌟 Technical Skills: ✅ Blockchain Development - Languages: Solidity, Rust, TypeScript - Tools: Hardhat, Truffle, Remix - Platforms: Ethereum, Solana, Polygon, Binance Smart Chain - Standards: ERC20, ERC721, ERC1155, SPL Tokens ✅ Frontend Development - React.js, Redux, Next.js - TailwindCSS, Material-UI for modern, responsive designs ✅ Backend Development - Node.js, Express.js, FastAPI - RESTful APIs, GraphQL - Real-time APIs: WebSockets, Pub/Sub patterns ✅ DevOps & Cloud - Docker, Kubernetes, Terraform - CI/CD Pipelines: GitHub Actions, Jenkins, CircleCI - Cloud Platforms: AWS (EC2, Lambda, S3), GCP, Azure ✅ Database Management - MongoDB, PostgreSQL, Firebase - Real-time synchronization and optimization 🌟 Industries Served: - DeFi & Blockchain Startups: Tokenomics, smart contracts, and decentralized platforms. - Gaming: Play-to-Earn systems and NFT game development. - FinTech: Blockchain-based payment gateways and analytics tools. - E-Commerce: Crypto payment solutions and blockchain loyalty programs. - Healthcare: HIPAA-compliant blockchain solutions for secure patient data. 🌟 Why Choose Me? ✅ Blockchain-Only Focus: Deep specialization in blockchain development ensures cutting-edge solutions. ✅ Proven Results: $15M+ in DeFi TVL, $7M in crypto payments processed, 75k NFTs minted. ✅ End-to-End Expertise: From smart contract audits to multi-chain integrations, I cover the entire blockchain stack. ✅ Client-Centric Approach: I collaborate closely to align solutions with your business goals. ✅ Future-Proof Solutions: My systems are scalable, secure, and ready for Web3 growth. 🚀 Let’s Build the Future of Web3 Together! Click “Invite to Job” and let’s get started! 🚀

Web3 developer and blockchain architect specializing in smart contract development (Solidity), DeFi protocols, and trading bot systems. I build: smart contracts, DeFi/CeDeFi platforms, wallet integration, token-gated systems, trading bots, blockchain APIs, RollUp, Oracle, CrossChain Bridges. I consider: Security, Scalability, Cost, Decentralization, Performance, Tokenomics Tech: Solidity,Smart Contracts, Web3.js, Ethers.js, Node.js, TypeScript, Python, Ethereum, Polygon, Arweave, IPFS, gas fee, Familiar with : Bitcoin, Ethereum, Solana, Arbitrum, OP Stack, Base, Polygon, BSC, Tron, EOS, Fabric, Oracle, Chainlink, LayerZero, CCIP, Wormhole, AA wallet (Account Abstraction), DePIN, Recent work: CeDeFi institutional infrastructure, Web3 archival system with wallet auth, DePIN Layer 2 blockchain.

California-based programmer with an extensive background in a variety of technologies, including desktop, mobile, and web platforms. I deliver high quality software by communicating with my clients effectively and working tirelessly to understand their exact needs for a project. With a thorough analysis of the problem and an effectively designed solution, I'm able to leverage years of independent software experience to implement and deliver your product quickly and effectively. I graduated from Santa Clara University with a Master's degree in Software Engineering in 2012, and have spent the last decade working with clients all over the Silicon Valley area. Here on Upwork, I've achieved and currently hold the Top Rated, Top Rated Plus, and Expert-Vetted talent badges - which are the highest the platform offers. I've also acquired AWS certifications in a variety of disciplines, all of which contribute to my broad understanding of technical domains and enhance my ability to design and implement effective solutions tailored to your project's needs. I strive to delight my clients with every project I undertake, and I would love to do the same for you. Please reach out if you have any questions!

Full-Stack Backend Developer | AI & Blockchain Specialist $35/hr | 5+ Years Experience I build robust, scalable, and intelligent backend systems for web and mobile applications. My expertise includes Node.js, MERN, AI/ML-powered backends, and blockchain development, delivering secure, high-performance solutions for SaaS platforms, real-time apps, and decentralized applications. I specialize in API design, real-time processing, and AI-driven automation for reliable and future-ready systems. Core Competencies Backend Architecture & API Development ✨ Node.js, TypeScript, JavaScript, Express ✨ REST & GraphQL APIs, JWT & OAuth2 authentication ✨ Microservices, modular architecture, and scalable system design ✨ Task scheduling, background jobs, logging, and automated workflows AI & Machine Learning Solutions 🤖 Integration of GPT, Claude, and other LLMs for chatbots, semantic search, and workflow automation 🤖 AI pipelines for parsing, filtering, recommendations, and intelligent data processing 🤖 AI-enhanced real-time features for smarter user experiences Real-Time Systems & Multiplayer Logic ⚡ WebSockets, Socket. IO, and real-time game logic ⚡ Low-latency live updates, messaging systems, and notifications Blockchain & Decentralized Systems 🔗 Ethereum, Polygon, BSC, Solana, Tron, Polkadot 🔗 Smart contracts, NFT marketplaces, token governance 🔗 Wallet integrations, cross-chain bridges, and secure blockchain logic Data Management & Optimization 💾 MongoDB, PostgreSQL, MySQL, Firebase, Redis 💾 Bulk operations, caching, AI-powered queries, and high-traffic optimization Cloud Deployment & DevOps ☁️ AWS, DigitalOcean, Docker, Kubernetes ☁️ CI/CD pipelines, monitoring, logging, and performance profiling Notable Achievements 🏆 Built AI-powered SaaS backends with intelligent automation 🏆 Developed real-time multiplayer systems and chat applications 🏆 Delivered blockchain-enabled backends, NFT marketplaces, and decentralized applications 🏆 Optimized high-traffic backends for performance, reliability, and scalability 🏆 Integrated AI pipelines for data parsing, semantic search, and smart recommendations Why Work With Me 💡 Backend-First Expertise: Scalable, secure, high-performance systems 💡 AI & Automation: Intelligent workflows and data-driven backends 💡 Blockchain & Web3: Smart contracts, NFT platforms, and decentralized integrations 💡 Maintainable & Clean Code: Test-driven development and best practices 💡 Agile & Transparent Delivery: Clear communication and reliable timelines

I build blockchain payment systems and high-performance backends that handle real money and real users. My last client hired me to architect a full payment platform on the XRPL — a $2,000+ engagement delivered on time with a 5-star review. If you need a developer who can go from protocol-level blockchain work to production-ready APIs, keep reading. I specialize in two areas where quality talent is hard to find: blockchain development (XRPL, Solana, smart contracts, wallet integrations) and high-performance backend systems in Rust and Python. Most developers know one or the other. I work across both, which means fewer handoffs and faster delivery for you. Recent work includes building the backend infrastructure for Ciperpool's ASI Project (Rust-based, blockchain-integrated), developing an eBay automation bot that handles listing analysis at scale, and integrating LLMs into production applications with Handshake AI. My stack: Rust, Python, TypeScript, Node.js, React, PostgreSQL, Docker, and Kubernetes. I pick the right tool for the problem, not the other way around. What working with me looks like: clear communication, no scope surprises, and code that's built to maintain — not just to ship. Every one of my contracts has ended with a 5-star review. Currently completing my M.S. in Software Engineering from Quantic School of Business and Technology, with a backend engineering credential from AltSchool Africa. If you're building anything involving blockchain infrastructure, Rust backends, or complex full-stack systems, send me an invite or message. I respond within a few hours and I'm happy to scope your project before we start a contract.

- Highly skilled Software Engineer with 20+ years of experience in developing application for customers from different parts of the world. - I have successfully designed, developed, and supported live use applications. I provide exceptional contributions to customer service for all customers. - With a Software Engineering degree and being a Scrum Certified specialist, - I have a full understanding of the full life cycle of a software development project. I also have experience in learning and excelling at new technologies as needed. My Portfolio of WEB3/Blockchain Projects in Freelancing is available at dexbotdev.framer.ai - Technical Expertise & Frameworks: - React , NodeJS, Blockchain, Solidity, SpringBoot, Microservices, Web3, Java/J2EE, SOA, Oracle OSB, Webservices (Rest/SOAP), Digital Web, JavaScript, , XML,XSD,Jaxb, Ajax, Struts, PL/SQL, Spring MVC,Spring Boot, Hibernate, JPA,JSF,PrimeFaces,Ibatis, C#, VB.NET,D2K,Coolgen,EKBE,JUnit, Mockito,Android, Oracle 9i App server, Tomcat, BEA WebLogic, Oracle 8i,9i, MySQL 4.5,Informix, NoSQL, MongoDB , Node.js Smart Client 6.5.1 (AJAX RIA), EXTJs, jQuery, React.Js, React Native Development, GWT , GXT, ExtJs, Vaadin, Sencha ,Junit,Cucumber,PhantomJs, Nodejs,CasperJs ,EJB 3.0 - DB Expertise: MySQL, PostgreSQL, Oracle, MS Access, MongoDB

I build AI-powered software systems that help businesses automate operations, qualify opportunities, and scale faster without increasing manual workload. Over the last 7+ years, I’ve worked as a full-stack engineer building SaaS platforms, CRMs, and automation systems where AI is not just a feature — it’s part of the core decision-making process. Most of my work sits at the intersection of backend engineering, workflow automation, and LLM-based intelligence systems. In simple terms: I help businesses replace repetitive processes with smart, automated pipelines that actually make decisions. 𝗪𝗵𝗮𝘁 𝗜 𝘁𝘆𝗽𝗶𝗰𝗮𝗹𝗹𝘆 𝗯𝘂𝗶𝗹𝗱 I work across three main areas: 𝗔𝗜 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 𝗦𝘆𝘀𝘁𝗲𝗺𝘀 I design workflows where LLMs (GPT, Claude, Gemini, etc.) handle classification, scoring, routing, and decision logic. This includes AI assistants, internal tools, and automation engines connected to real business APIs. 𝗦𝗮𝗮𝗦 & 𝗖𝗥𝗠 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 Multi-tenant applications, dashboards, and subscription-based systems with Stripe billing, role-based access, and analytics layers. 𝗪𝗼𝗿𝗸𝗳𝗹𝗼𝘄 & 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 Custom Node.js / API-driven systems using n8n, webhooks, background jobs, and integrations that connect CRMs, databases, and third-party tools. 𝗙𝘂𝗹𝗹-𝘀𝘁𝗮𝗰𝗸 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 I also handle end-to-end engineering when needed: React / Next.js frontends Node.js / NestJS / Express backends PostgreSQL / MongoDB systems Authentication (JWT, OAuth, RBAC) REST & GraphQL APIs Scalable system architecture For faster MVPs or Products, I also work with 𝗕𝘂𝗯𝗯𝗹𝗲.io and 𝗪𝗼𝗿𝗱𝗣𝗿𝗲𝘀𝘀— but always with proper backend structure behind them. 𝗦𝗲𝗹𝗲𝗰𝘁𝗲𝗱 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 Built AI-powered chatbot systems using GPT-4 for real-time business interactions Developed CRM dashboards with automated lead qualification pipelines Designed SaaS platforms with Stripe billing, user segmentation, and analytics Created automation systems combining APIs, scraping, and LLM-based decision engines Delivered Web3 integrations including ERC-20 and DApp-based systems 𝗪𝗵𝗼 𝗜 𝘄𝗼𝗿𝗸 𝗯𝗲𝘀𝘁 𝘄𝗶𝘁𝗵 Founders building SaaS products or AI tools Businesses looking to automate operations or lead workflows Agencies scaling outreach or qualification systems Teams that want systems, not just websites 𝗛𝗼𝘄 𝗜 𝘄𝗼𝗿𝗸 I usually start by understanding the workflow first — not the feature list. 𝗧𝗵𝗲𝗻 𝗜 𝗯𝗿𝗲𝗮𝗸 𝗶𝘁 𝗶𝗻𝘁𝗼: What can be automated Where AI adds decision-making value How the backend should be structured for scale How the system should evolve over time The goal is always the same: reduce manual work and increase system intelligence. 𝗣𝗵𝗶𝗹𝗼𝘀𝗼𝗽𝗵𝘆 Software shouldn’t just execute tasks — it should help decide what happens next. That’s the type of systems I build.