Takeda Yoichi
@takedayoichi
Senior blockchain and full-stack developer building secure dApps, NFTs, and scalable smart contracts.
What I'm looking for
I’m a Senior Blockchain & Full-Stack Developer with 10+ years of experience designing and deploying production-ready Web3 systems. I’ve built and shipped scalable dApps, NFT platforms, and secure smart contracts across major ecosystems.
In my most recent role, I developed and deployed smart contracts using Solidity, Rust, and Haskell across Ethereum, BSC, and Solana. I led backend systems for NFT and DeFi applications with Python and Node.js, integrated wallet support (Metamask, WalletConnect), and worked directly with auditors to ensure secure deployments.
Earlier, I built ERC20/ERC721 tokens and NFT marketplaces, implemented DeFi functionality like swaps and staking, and used Bitcoin multi-signature and custom encryption logic for dApps. I also bring strong front-end and full-stack depth—React/Next.js and modern back-end frameworks—so I can deliver cohesive end-to-end product experiences.
Experience
Work history, roles, and key accomplishments
Senior Smart Contract Developer
OMG Company
Apr 2022 - Apr 2024 (2 years)
Developed and deployed smart contracts using Solidity, Rust, and Haskell across Ethereum, BSC, and Solana ecosystems. Led backend services for NFT and DeFi applications, integrated wallet support, and partnered with auditors to ensure secure deployments.
Blockchain Engineer
Infinite Uptime
Sep 2019 - Mar 2022 (2 years 6 months)
Built and deployed ERC20/ERC721 tokens and NFT marketplaces using React, Web3, and Solidity. Implemented DeFi smart contract functionality for swaps and staking, worked with Bitcoin multisig and encryption, and forked Uniswap/Bancor for custom trading features.
Smart Contract Developer
MEZURASHICO
Oct 2017 - Feb 2019 (1 year 4 months)
Created Solidity smart contracts for trading applications and token launches, integrating Metamask for wallet-based onboarding. Built backend infrastructure with Node.js and MongoDB and collaborated with frontend teams to connect smart contract functionality.
Front-End Engineer
Nowsite
May 2015 - Jun 2017 (2 years 1 month)
Built user interfaces for NFT marketplace and blockchain dashboards using React Native, TypeScript, and Tailwind CSS. Delivered high-performance, mobile-responsive web apps with pixel-perfect UI implementation.
Full-Stack Developer
FIXER
May 2011 - Aug 2014 (3 years 3 months)
Developed full-stack systems using React, Vue, Angular, and backend frameworks including Django and Laravel. Automated data pipelines with Python and JavaScript and integrated IPFS/COBAL with enterprise databases such as Oracle, Teradata, and MongoDB.
Education
Degrees, certifications, and relevant coursework
Nagoya University
Bachelor of Computer Application, Computer Application
2007 - 2010
Earned a Bachelor of Computer Application at Nagoya University from 2007 to 2010.
Availability
Location
Authorized to work in
Social media
Job categories
Interested in hiring Takeda?
You can contact Takeda and 90k+ other talented remote workers on Himalayas.
Message TakedaFind your dream job
Sign up now and join over 100,000 remote workers who receive personalized job alerts, curated job matches, and more for free!
