Skip to main content

Hashstack Finance

I worked as a Lead Blockchain Engineer and developed hashstack contracts using React and Web3.

Visit website
  • Sep, 2021 - Sep, 2022
  • Oracle Blockchain Technology
  • Hashstack Contracts(Loan & Deposit)
  • React and Web3
The Slice web application showing a selected user annotation.

Achievements

- Designed & implemented a Distributed Ledger using Oracle blockchain technology and Diamond protocol (EIP-2535) to maximize gas efficiency and to reduce the possibility of security loopholes for smart contracts

- Created user-friendly interface and integrated hashstack contracts (Loan & Deposit) using React and Web3 for all kinds of wallets

- Wrote all unit tests with Hardhat and ensured implementation of contracts into production

- Discussed & resolved all technical issues and suggested good solution with a technical leader on daily stand-up meetings

Copyright © 2025 Charalampos S.