High-energy Web3 Developer with experience in smart contracts, full-stack dApps, and blockchain integrations across Ethereum, Solana, and TON. Skilled in Web3, Web2, and AI integration. Enjoys talking about crypto.

I’m Mohamed Dhia Ben Fraj, a passionate engineer with 6+ years of experience in software development, including 4+ years in blockchain engineering. I specialize in building secure, scalable Web3 infrastructures, DeFi protocols, and smart contracts using Solidity, Go, and Rust. I’ve contributed to projects across EVM-compatible chains, developed smart contracts for NFT platforms, and architected full-stack decentralized applications. With strong backend experience in Node.js, NestJS, and PostgreSQL, I’m equally comfortable managing CI/CD pipelines and infrastructure automation using Docker, Kubernetes, Terraform, and GitHub Actions. Driven by innovation and real-world impact, I bring a hands-on, solution-focused mindset to every team I join.

Experience: Software Development Engineer @ Vitwit Technologies Built a prediction market smart contract and a resolution system using Rust and CosmWasm Developed ArkaPlayground – a GitHub-style AI platform using Next.js, Redux, TypeScript Created IBC-based smart contracts for cross-chain liquidity pools on Osmosis Built data management systems using PostgreSQL & InfluxDB for AI agents Integrated real-time web search into an AI agent framework Internship @ Vitwit Technologies Worked on a decentralized OTC platform, including both smart contracts and frontend in React Conducted research on prediction markets like Polymarket and Augur Projects: IBC Liquidity Pool Contract (CosmWasm, IBC, Osmosis) ArkaPlayground – a full-stack AI notebook platform Prediction Market Contract with cross-contract resolution logic Decentralized OTC Trading Platform with bidding and escrow Technical Skills: Languages: JavaScript, TypeScript, Rust, Java, C, Solidity, SQL Frameworks/Tools: React.js, Node.js, Next.js, Express.js, Redux, Tailwind CSS, AWS, CosmWasm, GitHub, Terraform Databases: PostgreSQL, InfluxDB Achievements: 1st Place in BIG BYTE2 Coding Contest Solved 500+ coding problems Tech community leader at CODECLUB Delivered lectures on DSA to juniors

Senior Blockchain & Web3 Full Stack Engineer with 7+ years developing Blockchain & DeFi related projects. Expertise in all phases of blockchain & web3 development lifecycle focusing on high-quality, scalable and efficient solutions with full attention to detail and innovative mindset.

I am a versatile and logical Software Engineer with expertise in mobile app development, ERP solutions, and blockchain technology. As a Crypto & Tech enthusiast, I specialize in creating innovative solutions, from developing smart contracts and NFTs to crafting custom crypto tokens.With a passion for cutting-edge technology and problem-solving, I thrive at the intersection of software development and blockchain innovation, delivering impactful solutions that bridge the gap between technology and real-world needs.Let’s create something extraordinary together!

Nodejs/React/Python/Flask/Numpy/Pandas Full stack engineer with heavy experience building solutions with dynamic, reactive, accessible UI and automating backend processes including ffmpeg media transformations, algotrading automation with IBKR, ccxt. React Native development and Play Store/App Store testing/release/maintenance. Firebase and MongoDB high performance database design. Offline first capabilities, atomic transactions. Datacenter/hosting background and cloud infrastructure (migrations and hybrid/with on-prem solutions) CI/CD pipeline optimization, terraform and cloud-init based IaC for scalability and cost effective HA load balancing.