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I am a Blockchain & Smart Contract Developer specializing in building secure, production-ready decentralized applications. I help Web3 startups, DeFi protocols, and NFT projects ship reliable on-chain products, from smart contract architecture to polished dApp frontends. 🛠 SMART CONTRACT DEVELOPMENT - Designing, developing, testing, and deploying secure smart contracts in Solidity using Foundry & OpenZeppelin - Custom tokens (ERC-20), NFT collections (ERC-721), staking & yield mechanisms, and DAO governance systems - Thorough testing and gas optimization for safe, efficient on-chain execution 💻 FULL-STACK dApp DEVELOPMENT - Building responsive, modern dApp interfaces with React, TypeScript & TailwindCSS - Seamless Web3 integration using wagmi, viem, and Ethers.js - Secure multi-wallet connections (MetaMask, WalletConnect, Coinbase Wallet) - Backend event indexers for tracking on-chain activity (Node.js, Fastify, TypeScript) ⭐ WHY ME My UI/UX design background means your dApp won't just work, it will be intuitive and clean. I communicate clearly, write maintainable code, and deliver on time. 📂 Featured projects: EquinoxFi (DeFi staking protocol) & ZenithDAO (on-chain governance), both live and viewable in my portfolio. Let's build something great. Send me a message to discuss your project.

As a highly skilled and experienced blockchain developer with a bachelor's degree in Computer Science and a strong background in IT, I have extensive experience working on a variety of projects involving the development and implementation of smart contracts, the creation of decentralized applications (DApps), and the development of non-fungible tokens (NFTs). My technical expertise includes programming languages such as Solidity and ReactJS, as well as a deep understanding of the technical aspects of blockchain technology. I have a proven track record of delivering high-quality work to my clients, and am known for my reliability and dedication to my projects. In addition to my experience in blockchain development, I am also proficient in front-end web development using the React framework. I have a strong understanding of the principles of user experience and interface design, and am able to create intuitive and visually appealing applications. If you are in need of a talented and experienced blockchain developer who can bring your project to life, I would be happy to help. I am confident in my ability to deliver exceptional results and exceed your expectations.

Hi, I’m Hutomo — a Top Rated engineer on Upwork with a background in mobile development, backend systems, and performance-focused tooling. I’ve spent several years building and maintaining production applications, primarily with Flutter on the frontend, and TypeScript, Go, and Postgres-based systems on the backend. More recently, I’ve been working with Rust and WebAssembly for client-side and systems-oriented projects. I’m comfortable working across: - Mobile apps (Flutter, iOS) - Backend APIs and databases - Real-time systems - CI/CD and deployment - Performance-sensitive client-side tools I value clear communication, realistic planning, and building things that are easy to maintain long-term. If you’re looking for a dependable engineer who can think beyond just UI or just backend, feel free to reach out. — Hutomo

I am a seasoned blockchain developer with rich experience in creating innovative solutions on the blockchain network, especially Solana platform. With a strong background in smart contract development and decentralized applications (DApps), I help clients build secure, scalable, and efficient blockchain systems. MEV bot developer ✔Skilled in writing secure smart contracts using Rust and Solidity. ✔Experienced in designing and deploying decentralized applications. ✔Adept at integrating blockchain solutions with existing systems. ✔Experienced in building scalable DeFi solutions, including exchanges and lending platforms. ✔Skilled in creating and managing NFTs, utilizing tools like Metaplex. 🎁Skills ✔C++, C#, Javascript, Python, Typescript, Golang, Solidity, Rust ✔React.js, Next.js, Vue.js, Angular.js, Nest.js, Express.js, Web3.js, Ethers.js, Hardhat, Anchor ✔MySQL, PostgreSQL, MongoDB, GraphQL 🎁What I Offer ✔Custom blockchain solutions tailored to your business needs. ✔Secure and efficient smart contract development. ✔High-quality DApp development with user-friendly interfaces. ✔Expert advice on blockchain integration and optimization. If you're looking for a reliable and skilled blockchain developer to bring your decentralized projects to life, I'm here to help.

I derive immense satisfaction from crafting software solutions and have adeptly navigated solo projects as well as collaborated within agile teams. My unwavering dedication to meeting client requirements within stipulated timelines fuels my full-time commitment to excellence. As a seasoned senior software engineer with years of industry experience, I possess a diverse skill set geared towards delivering top-notch products. My forte lies in developing scalable, high-performing, and secure web applications by seamlessly integrating a myriad of technologies. Throughout my professional journey, I have had the privilege of spearheading captivating projects ranging from e-commerce web applications to bespoke designs for art and music domains. I take immense pride in my achievements thus far and am always enthusiastic about embracing fresh challenges. My methodical approach to processes has been instrumental in consistently delivering successful projects on time, a quality appreciated by my clientele. I eagerly anticipate the opportunity to contribute to exciting projects alongside you! Let's establish a connection and explore how I can assist you in realizing your objectives!

Fullstack Web3 Engineer with 2 years of experience building production-ready decentralized applications and fullstack web products leveraging AI tools (Windsurf, Claude Code) to ship faster without compromising code quality. I specialize in two areas: Web3 & Smart Contracts: - Move smart contracts on Sui Network - Solidity contracts on EVM-compatible chains - Contract testing & deployment with Hardhat and Foundry - DApp integration via Wagmi/Viem, Rainbowkit, and Sui dApp Kit Fullstack Development: - Frontend: React, Next.js, TypeScript, Tailwind CSS - Backend: Node.js, Express, REST API design - Database: PostgreSQL, Supabase - Deployment: Vercel, Docker, basic CI/CD pipelines Projects I've shipped: - Sukatani Web3 farming RPG with Land NFTs on Base (EVM) - Proofboard Decentralized Proof-of-Existence using Irys & SHA-256 - Catalyst NFT Launchpad on Sui Network Available for both short-term and ongoing contracts. Clear communication, clean code, on-time delivery.