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Experienced Blockchain Developer adept in bringing forth expertise in fields below:

Smart Contract, DeFi, in Ethereum, Solana, Avax, Wax, Algorand, Polygon,BSC, Polkadot
DApps development ; Solidity/Rust + web3.js/ethers.js
Integration with crypto wallets such as Metamask.

What I can do for you:

Creating an exchange Trading platforms with 3rd part liquidity API, Margin trading etc. like binance.com, bybit.com, or Bitmex.com
NFT marketplace, Defi/Dapp Development, DeFi Consulting (swaps, liquidity pools, borrowing and lending, yield farming, impermanent loss, governance tokens)
NFTs (ERC-721, ERC-1155, Flow, BSC, Polygon, Rarible, Opensea, Nifty, etc)
ICO| STO| IEO- Developing from scratch + Marketing
Smart Contract (ERC20 + ERC21) and Audit

Singapore Institute of Technology

Blockchain Engineer

Sekiya Hiroshi

Zentachain, Germany

Senior Blockchain Developer

Lead the research, design and development of Blockchain technologies. 
Analysis various type of Blockchain technologies so that imagine new innovate idea and realize it as improving company DeFi systems. 
As not only project manager but also senior engineer, developed new DeFi systems successfully. 

Developed frontend integration with smart contract of DeFi protocol using web3, ether.js. 
Designed perfect architecture of platform so that realized protocol optimization. 
Mainly worked with Reactjs(ts) + Nuxtjs(Next, Node, Nest)

Rocketech, UK

Senior DeFi engineer

Solved very important technical problem of smart contract to find best call path which user can get best profits on trading. 
Suggest new cryptography concept and solved security problems of transactions in smart contract. 
Developed game smart contract and DEX, DAO smart contract such as staking, bridge.

Everlink, Canada

Senior Smart Contract Engineer

Developed various kinds of frontendand api integrations with clean and fast coding. 
Developed project following client idea so that give perfect result as client want. 
Familiar with Reactjs, typescript, Angular, Laravel, etc.

Tokyo, Japan

Senior Frontend Developer

Developed user friendly frontend with react, angular, vue. 
Focus security of project on backend side with nodejs and express. 
Design well database architecture with mongodb, firebase, mysql. 
Worked with AWS, SaaS, python, github

Sekiya Hiroshi’s posts