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Solidity Developer
With a Bachelor's degree in computer science, I have 8 years of experience in software development. I actually started my career as a software developer with web development since 2013. It was 2017 when I dived into blockchain space and began my career as a blockchain developer.
I mainly develop smart contracts on EVM compatible chains first so Solidity is one of my strongest skills. I get familiar with several frameworks like Hardhat, Remix, and Truffle and I am also well versed in various ERC standards like ERC-20, ERC-721, ERC-1155, ERC-2535 for token and NFT smart contract development.
In terms of NFT, I have built many NFT projects like minting, staking, marketplace and P2E games etc. I always write optimized and gas efficient smart contracts for avoiding vulnerability and the lack of security. I have also experience in smart contract audit using many tools like smartcheck, mithril and slither and deployed several complicated smart contracts to the mainnet successfully. Besides that, I often use third party api like Opensea and Magic eden for my DApp development
My 6 years of experience in blockchain space make me proficient in several DEFI protocols like Uniswap and Lido. In addition to EVM compatible chains, I have also developed smart contracts with Rust on Solana and Cosmos blockchain before.
I have worked for many companies and clients before and always satisfied them with my skills and positive attitude to the work. I also have excellent communication skills so I communicate closely with team members to resolve issues and produce the best product.
I am ready to start work immediately and I can work at any time zone remotely.
Experience: 8 years
Yearly salary: $120,000
Hourly rate: $50
Nationality: π―π΅ Japan
Residency: πΈπͺ Sweden
Experience
Solidity Developer
360 Foundation 2022 - 2023
The 360 Token is a revolutionary digital asset that aims to provide a decentralized financial ecosystem, empowering users with transparent and secure asset management solutions. Launched 360 token on polygon chain. 360 ecosystem allows token holders to earn real yield through various mechanisms. Built the pixel perfect landing page with React Vite and implemented various animations and effects for eye-catching and user friendly interface. Wrote smart contracts like staking and vesting which is needed for DeFi protocol and audited and deployed them with Foundry. Developed DeFi DApp which include dex, staking, vesting, bonding etc. Integrated solidity smart contract using ether.js in the Dapp and implemented user-friendly and mobile-responsive interface. Managed all tasks using Trello. Resolved numerous issues and challenges during development process and collaborated with team members closely for the success of our project.
Solidity | Rust| Go Developer
DMG Blockchain Solutions 2020 - 2022
DMG is a publicly-traded blockchain and cryptocurrency company that provides digital solutions to monetize the blockchain ecosystem. Built token bridge chain which enables users to transfer tokens from Ethereum to Cosmos chain. Added observer module which tracks the transaction from Ethereum and the Cosmos chain. Wrote smart contracts on Solana and Cosmos chain for the pool using Rust, Anchor, and Cosmwasm. Wrote smart contracts on Ethereum chain for the pool using solidity. Built NFT marketplace on the chain using Cosmwasm. Integrated Jenkins to git where the build triggers automatically when push a pull request for CI/CD. Containerized applications using Docker: Created docker files, built docker images for microservices files to run Kubernetes Platform.
Smart Contract Developer
Twosteppe Digital 2019 - 2023
BitowFi is one of the leading regulated institutions of digital assets in the USA. Implemented and designed smart contracts for the DeFi protocol. Implemented large gas optimizations in underlying DAO governance, stablecoin yield generation, liquidity arbitrage functionalities, and integration of new LP pools for the regular coin peg maintenance, such as curve finance and Liquidity Protocol. Developed a full-features backend for testing the functionality of smart contracts. Helped to integrate Ethereum and ER20 tokens into an exchange that is currently being built. It included address generation, token listing, and basic wallet operation related to ether and tokens using Web3.js. Researched the use of permissioned blocks and IPFS. Developed smart contracts, and gave a review on Solidity smart contracts.
Solidity | React| Node.js Developer
Privi Protocol 2018 - 2020
PRIVI is a collection of decentralized apps designed to take the power away from the elite, and distribute it to the world. Developed Solidity Smart contracts for 4+ projects DeFi (Lending, Swap), NFT (meme, Niche NFT marketplace) on BSC, Polygon. Creating, Compiling, migrating, testing & debugging smart contracts using truffle and hardhat. Introduced the embedded wallet system to provide a user-friendly wallet integration system. Worked on React v16 front-end stuff to implement components with Figma design. Learn and participate in the Polkadot system and Polkadot.js to implement sub chains on Privi. Fascinated by Solana blockchain and built several DApps like ICO/IDO, DEX platform, NFT projects including minting, staking, marketplace, and P2E games using Rust and Anchor framework. Participated in one small Go back-end system to provide a state of smart contract which is stored by solidity events.
Skills
bitcoin
erc
erc-1155
erc-165
erc-20
erc-223
erc-4626
erc-621
erc-721
erc-777
erc-827
erc-865
erc-884
golang
nextjs
rust
smart-contract
solana
typescript
web3
solidity
english
japanese