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Sekiya Hiroshi
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
Work Experience
Senior Blockchain Developer • Zentachain, Germany
August 2020 - February 2022
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.
Senior DeFi engineer • Rocketech, UK
April 2019 - August 2020
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)
Senior Smart Contract Engineer • Everlink, Canada
April 2018 - February 2019
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.
Senior Frontend Developer • Tokyo, Japan
May 2017 - April 2018
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.
Senior Full Stack Developer • Everlink, Canada
October 2016 - April 2017
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
Education
2012 - 2016
Singapore Institute of Technology
Computer Science
Skills
- Rust
- web3
- Ethereum
- Solidity
- Solana
- Smart Contract
- Hardhat | Truffle | Genache
- NFT
- DeFi
- DEX
- React
- Vue
- Angular
- Python
- Golang
Languages
- English — Professional
- Japanese — Professional
Sekiya Hiroshi
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
Work Experience
Senior Blockchain Developer • Zentachain, Germany
August 2020 - February 2022
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.
Senior DeFi engineer • Rocketech, UK
April 2019 - August 2020
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)
Senior Smart Contract Engineer • Everlink, Canada
April 2018 - February 2019
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.
Senior Frontend Developer • Tokyo, Japan
May 2017 - April 2018
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.
Senior Full Stack Developer • Everlink, Canada
October 2016 - April 2017
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
Education
2012 - 2016
Singapore Institute of Technology
Computer Science
Skills
- Rust
- web3
- Ethereum
- Solidity
- Solana
- Smart Contract
- Hardhat | Truffle | Genache
- NFT
- DeFi
- DEX
- React
- Vue
- Angular
- Python
- Golang
Languages
- English — Professional
- Japanese — Professional