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Avatar of Sekiya Hiroshi.
Sekiya Hiroshi
Blockchain Engineer
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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
Zentachain, Germany
Singapore Institute of Technology
Tokyo, Japan

Professional Background

  • Statut Actuel
  • Profession
    Back-end Engineer
    ・
    Front-end Engineer
    ・
    Blockchain Platform Engineer
  • Fields
    Blockchain
    ・
    Intelligence Artificielle / Machine Learning
    ・
    Logiciel
  • Expérience professionnelle
    10 à 15 ans (6 à 10 ans pertinente)
  • Management
    I've had experience in managing 10-15 people
  • Skills
    Rust
    web3
    Ethereum
    Solidity
    Solana
    Smart Contract
    Hardhat | Truffle | Genache
    NFT
    DeFi
    DEX
    React
    Vue
    Angular
    Python
    Golang
  • Languages
    English
    ・
    Professionnel
    Japanese
    ・
    Professionnel
  • Highest level of education
    Bachelor

Job search preferences

  • Desired job type
    Temps plein
    ・
    Intéressé par le travail à distance
  • Desired positions
  • Lieu de travail désiré
  • Freelance
    Indépendant à temps plein

Work Experience

Senior Blockchain Developer

Zentachain, Germany
août 2020 - févr. 2022
・
1 yr 7 mos
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
avr. 2019 - août 2020
・
1 yr 5 mos
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
avr. 2018 - févr. 2019
・
11 mos
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
mai 2017 - avr. 2018
・
1 yr 0 mos
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
oct. 2016 - avr. 2017
・
7 mos
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

Singapore Institute of Technology

Bachelor of Science (BS)
・
Computer Science
2012 - 2016