Sekiya Hiroshi
Blockchain Engineer
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
Skills
Languages
English
・
Professional
Japanese
・
Professional
Work experiences
Senior Blockchain Developer
Zentachain, Germany
Aug 2020 ~ Feb 2022
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1 yr 7 mosLead 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.
Senior DeFi engineer
Rocketech, UK
Apr 2019 ~ Aug 2020
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1 yr 5 mosDeveloped 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)
Senior Smart Contract Engineer
Everlink, Canada
Apr 2018 ~ Feb 2019
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11 mosSolved 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.
Senior Frontend Developer
Tokyo, Japan
May 2017 ~ Apr 2018
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1 yr 0 mosDeveloped 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.
Senior Full Stack Developer
Everlink, Canada
Oct 2016 ~ Apr 2017
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7 mosDeveloped 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
Educations
Singapore Institute of Technology
Bachelor of Science (BS)・Computer Science
2012 - 2016
