Ryosuke Yamamoto

Web3 FullStack Developer

I am a senior blockchain developer with proficiency in NFT marketplace, Smart Contract development, ICO& IDO, Smart Contract Audits, DeFi/DApp development.

My blockchain experience is extensive, having worked with blockchain since 2017.

I am well-versed in the following services:

 Smart Contract Development

   ERC20, ERC721, ERC721A, ERC1155, BEP20, BEP721 Standards, Solana, EOSIO, WAX, Elrond networks.

   Contract Test and Audit in development environment by using Truffle, Hardhat

   Anti-Bot, Whitelist functions integration for Token, NFT contracts

   Wrap Token Contract development from BTC, NDAU, Doge, etc.

 Smart Contract Audits

   Code checking line by line

   High/Middle/Low level severity Audit test on the testnet, devnet

   Provide audit with functional example

 Defi/ DApp Development

   Forking Dex tools like Uniswap, Sushiswap, Pancakeswap, Rubic with special requirement

   Crypto Escrow System development (Frontend: React, Backend: Laravel, Python/Flask, Escrow Contract development)

   ICO & IDO, Token airdrop & presale service platform with custom supply, Liquidity, whitelist

   Wallet connection using web3.js or ether.js

 NFT minting & staking, marketplace Development

   Minting, Staking Contract on ERC721, ERC1155 standards on Ethereum, Polygon, Avalanche, BSC, Harmony, Solana network

    P2E (Play to Earn) contract development

 Cross-Chain-Bridge Development.

   Child Token, Bridge Contract development

   Relay service integration like Moralis, Chainlink, Chainstack

   Well-made Cross-Bridge DApp development using react.js, web3.js, MongoDB

 CEX Development

  Spot & Margin Trading option, Multi-Chain Support

    Fiat Withdraw, Deposit function by using PayPal, Stripe, CoinPayment, Perfect Money Api integration

   Well-Structured DB Design

I am available on the flexible timezone, and I can accept full-time, part-time, contest position.

Therefore If you share your idea, I will make it to reality.

TYPESCRIPT
ANGULAR
REACT
SOLIDITY
NFT
EVM
MONGODB, MARIADB, MYSQL, MSSQL, POSTGRESQL
NODE.JS, EXPRESS
PACT
WEB3JS