Building production-grade Web3 applications with 3+ years of experience. Specializing in smart contracts, DeFi protocols, and modern frontend development. Active contributor to the Ethereum ecosystem and open-source projects.
Passionate about building the decentralized future
I'm David Marvy, a Frontend & Blockchain Developer with over 3 years of professional experience building production-grade Web3 applications. My journey into blockchain started with a fascination for decentralization and has grown into a deep technical expertise across the entire Web3 stack.
As an alumnus of Web3Bridge, one of Africa's premier blockchain talent programs, I've had the opportunity to work on cutting-edge DeFi protocols, NFT marketplaces, and infrastructure projects. I specialize in smart contract development using Solidity and Rust, combined with modern frontend technologies like React and Next.js.
What drives me is the potential of blockchain technology to create more transparent, accessible, and equitable systems. I believe in the power of open-source collaboration and actively contribute to Ethereum ecosystem projects through platforms like OnlyDust.
My work spans the entire spectrum of Web3 development. On the smart contract side, I architect and deploy secure, gas-optimized protocols with comprehensive test coverage. I've worked with various DeFi primitives including automated market makers, lending platforms, and governance systems.
On the frontend, I create intuitive user interfaces that make complex blockchain interactions accessible. I integrate wallet connections using Web3 libraries like wagmi, viem, and OnchainKit, and work extensively with frameworks like Hardhat, Foundry, The Graph, and various Layer 2 solutions including Base, Polygon Arbitrum and Celo .
I'm also passionate about developer tooling and infrastructure. I contribute to open-source projects that improve the developer experience and make Web3 development more accessible to newcomers.
Proficient in both frontend (React, Next.js, TypeScript) and blockchain development (Solidity, Rust). Building end-to-end decentralized applications.
Deep understanding of smart contract security patterns, gas optimization, and best practices. Every line of code is written with security in mind.
Extensive experience with DeFi protocols including AMMs, lending platforms, yield farming, and governance mechanisms.
Active contributor to major Ethereum projects, OnlyDust platform, and various Web3 infrastructure initiatives.
Experience building on Ethereum, Base, Celo, Polygon, and Solana. Understanding of cross-chain architecture and bridges.
Staying current with latest Web3 trends, participating in hackathons, and constantly expanding technical knowledge.
I'm available for remote opportunities, collaborations on innovative Web3 projects, and open-source contributions. If you're looking for a dedicated developer who combines technical excellence with a passion for decentralization, let's connect!
Production-grade Web3 applications and open-source contributions
Built a production-grade automated market maker (AMM) with concentrated liquidity pools. Implemented advanced yield farming strategies and governance mechanisms.
Developed a multi-chain NFT marketplace supporting Ethereum, Base, and Polygon. Integrated LayerZero for cross-chain messaging and asset transfers.
Created a decentralized autonomous organization platform with flexible voting mechanisms, treasury management, and proposal execution.
Built an interactive Farcaster Frame application with OnchainKit integration. Features real-time blockchain interactions and social engagement.
Developed a static analysis tool for Solidity smart contracts. Detects common vulnerabilities and provides optimization suggestions.
Full-stack Web3 development with a focus on security and user experience
Expert in writing secure, gas-optimized smart contracts with comprehensive testing
Building responsive, performant web applications with modern frameworks
Deep understanding of AMMs, lending protocols, and yield strategies
Seamless wallet connection, transaction handling, and blockchain interactions
🎓 Web3Bridge Alumni • 🏆 Multiple Hackathon Winner • ⚡ OnlyDust Contributor • 💎 Ecosystem Grant Recipient
3+ years of professional experience in Web3 and frontend development
Ethereum Ecosystem
Building developer tooling and infrastructure projects for ecosystems like Ethereum. Focused on enhancing developer experience and improving blockchain development workflows.
NFT Marketplace Startup
Built production-ready NFT marketplace with multi-chain support. Integrated wallet connections, IPFS storage, and real-time blockchain event monitoring.
Web3Bridge
Intensive blockchain development program focused on Ethereum and Solidity. One of Africa's premier Web3 talent programs.
Tech Agency
Developed responsive web applications using React, TypeScript, and modern CSS frameworks. First exposure to Web3 technologies.
Active contributor to open-source Web3 projects through OnlyDust platform
Multiple hackathon wins in DeFi and infrastructure categories
Contributing to protocol improvements and developer tooling
Received ecosystem grants for open-source contributions
Available for remote opportunities, collaborations, and Web3 projects
I'm currently open to new opportunities in Web3 development, particularly in DeFi, infrastructure, and developer tooling. Whether you're looking to hire, collaborate, or just want to chat about blockchain technology, I'd love to hear from you!
I'm actively seeking remote positions in Web3 development, open to full-time roles, contract work, and exciting project collaborations. Let's build the future of decentralized applications together!