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Rogerio F. Senior Solidity Developer

Smart Contract, Wallet and Web3 Integration, DeFi Ecosystem, DEX and CEX

Summary

- 4 years of experience in Ethereum blockchain and Solidity programming.
- 2 years of experience in C , Python programming.
- Highly professional blockchain developer with comprehensive accomplishments applying high-security smart contracts to ensure success and achieve goals.
- Strong experience in EVM-compatible smart contracts development. Demonstrated success developing and
seamlessly executing smart contracts in complex DeFi and DEX structures.
- Upper-Intermediate English
- Available ASAP

Experience

Senior Solidity Developer, Freelancer.com (Full-time)

February 2022 - Present
Responsibilities:

  • Development of vault smart contracts and unit tests, deployment scripts using Hardhat, Solidity, Ethers.js, Web3.js Chai, and Typescript.
  • Swap contract implementation using Pancakeswap DEX protocol on Binance Smart Chain.

NFT Smart Contracts Developer, EONXI(Part-time)

May 2021 - January 2022
Responsibilities:

  • ERC721, ERC1155 NFT contracts development with on-chain metadata
  • Development of Solidity smart contracts for NFT lending and renting
  • NFT Game contract development based on Metaverse

DeFi Engineer, EdenChain(Contract)

January 2021 - December 2021
Responsibilities:

  • Designed Defi lending protocol architecture and specification.
  • Developed main lending pool contracts and unit tests using Solidity, Hardhat, Ethers.js, Chai, and Typescript.
  • Integrated Uniswap DEX protocol for the token swapping feature.
  • Yearn Finance protocol integration to generate interest.

Blockchain Developer, CrowdWorks(Contract)

February 2019 - December 2020
Responsibilities:

  • Deep understanding of large Defi lending and AMM protocols such as Compound and AAVE.
  • Participated in ERC20 token swap project using Uniswap V2 protocol.
  • Plenty of experience with EVM-compatible smart contract dev tools such as Truffle and Hardhat.
  • Frontend integration to interact with smart contracts using Web3.js and Ethers.js.

Software Programmer, GOPOMELO(Full-time)

January 2014 - December 2018
Responsibilities:

  • CBCT application development
  • ESP32 and PIC32 firmware development for Drones
  • Smart Contract developer (Intern experience for 2 years)
       Study steps of Blockchain smart Contract development
       Frontend integration to interact with smart contracts.

Projects

Defi Projects:
https://guitarswap.exchange/
https://wwf.finance/
https://cryptomozart.io/
https://goldlion.finance/
NFT Projects:
NFT marketplace https://nftm.trustsdev.com/
NFT marketplace https://memories.voyr.me/home
NFT Game https://www.loxar.games/
NFT Game https://littleghosts.art/
NFT Game https://shibasocietynft.com/
DEX platform:
https://bhaktipound.org/#/swap
https://swap.sushimantoken.com/#/swap
https://thogechain.com/

 Education

Bachelor's degree Computer Programming
University of Itaúna