Summary
Overview
Work History
Education
Skills
Certification
Awards
Projects
Hobbies
Timeline
Generic
Henry Onyebuchi

Henry Onyebuchi

Lagos

Summary

A seasoned smart contract developer specializing in Blockchain, Ethereum, DeFi, and NFTs. Passionate about solving real-world problems using these technologies, with a proven track record in driving innovation and adoption.

Overview

5
5
years of professional experience
1
1
Certification

Work History

Smart Contract Engineer

Savvy Defi
08.2023 - 04.2024
  • Optimized existing smart contracts to reduce costs for users
  • Created a system to govern and secure future smart contract deployments.
  • Created new implementations of existing underlying strategies on partner DeFi protocols for upgrades.
  • Created flashloan repayment of loans in the Savvy lending protocol.
  • Built several smart contacts to do various functions based on in-house and/or third-party requirements.
  • Brainstormed with team on new ideas to scale and boost the revenue of Savvy protocol without risking existing funds
  • Implemented the protocols TVL with DefiLamma.
  • Conducted research to identify and evaluate new technologies and concepts.

Principal Blockchain Engineer

Sliver
02.2023 - 09.2023
  • Successfully led the development and integration of a one-tap gasless investment dApp
  • Implemented off-chain signature mechanisms
  • Utilized EIP712 and EIP2612 standards to incorporate permit signatures for EIP2612 type tokens
  • Integrated mata-transaction, enabling smooth execution of investment transactions with a single tap, streamlining the investment process for users
  • Integrated various DeFi protocols into the dApp, offering users a diverse range of investment opportunities with maximum security and reliability
  • (UniswapV2/V3, Curve, Lido, MakerDAO, etc
  • Implemented relayer functionality to execute transactions on behalf of users using their off-chain signatures
  • Developed a robust system to deduct convenience fees and network fees.

Lead Smart Contract Developer

Despace Protocol
04.2021 - 03.2023
  • Built upgradable smart contracts for NFT auction pad, NFT lottery pad, and NFT marketplace
  • Built smart contracts on the token bridge, Uniswap fork, farming protocol, liquidity migrator, DEX aggregator, and more
  • Performed blockchain forks with unit tests using tools like Hardhat, truffle, Alchemy, and other related smart contract development frameworks
  • Provided technical documents for developers
  • Brainstormed with the CTO and CEO on best and viable practices in every new integration.

Co-founder and CTO

Lead Wallet
09.2019 - 05.2022
  • Built smart contracts for a token, token staking, and token vesting
  • Supervised the development of different blockchains including Ethereum, Bitcoin, PolkaDOT, RSK, BCH, BSC, and many more
  • Decided on all third-party APIs and tools that were used during the entire development process
  • Spoke at several hybrid events and talked about the core architecture of the project, and organized hackathons.

Education

Blockchain Development Bootcamp - Blockchain Development

Consensys Academy
05.2022

Blockchain Certified Developer - Blockchain Engineering

Web3Bridge
02.2020

MTech - Mechanical Engineering (Production)

Rivers State University
06.2019

B.Eng - Mechanical Engineering in the option of Industrial Production

Federal University of Technology Owerri
Owerri, Imo State, Nigeria
11.2014

Skills

  • Solidity / JavaScript / Typescript
  • Hardhat / Foundry / Truffle
  • Slither / Aderyn / Fuzzing / Invariant
  • Web3 / Ethers / Viem
  • DeFi / EIPs / NFTs
  • Upgradability / Cross-Chain / Oracles
  • Security / Gas Optimization
  • Nodejs / Express
  • MongoDB
  • React

Certification

  • Micro1 Certified Smart Contract Developer, Mirco1, 08/01/23, https://hackmd.io/_uploads/Bk3tAwUi3.png
  • Arc Certified Remote Developer, Arc.dev, 11/01/23, https://arc.dev/@henryonyebuchi53

Awards

  • Hackathon Winner, 11/01/22, 12/01/22, Ubseswap Destiny Hackathon, Gitcoin - A dApp that fulfills DAO payments in milestones for Ubeswap grants, https://twitter.com/ubeswap/status/1606348656956751873
  • Most Optimized Smart Contract Implementation, 02/01/20, 03/01/20, A boot camp project with Blockeducare, 500NigeriaDevs4Eth, https://github.com/Bloceducare/certificate-contract

Projects

Despace DApp, DEX, NFT Marketplace, Aggregator, Yield Farming, Migrator, https://despace.app 


Dexpay - Decentralized P2P Marketplace for Native and whitelisted custom tokens, https://dexpay.io 


IOFY Marketplace - IoT Rentals. Allows IoT device owners and users, through a web-based front-end, the means to lease and rent an IoT device in a decentralized manner, https://ethglobal.com/showcase/iofy-xzj0e 


DAO Milestones Manager. An open source project which enables the management of Ubeswap DAO to properly add and manage funds through passed proposal form the DAO, https://github.com/Hendobox/Ubeswap-Dao-Hackathon 


Staking Dapp, A staking dApp for LEAD ERC20 token, https://github.com/leadwallet/LEAD-Stake-DApp-Backend Liquidity 


Mining Protocol, A liquidity mining protocol smart contract that routes Pancakeswap and allows users to provide liquidity and mine BNUG DAO tokens as they earn trading fees from the exchange, https://web-dapp-bnug-aa0ho4i80-bnugdao.vercel.app/

Hobbies

Chess, Raping, Boxing

Timeline

Smart Contract Engineer

Savvy Defi
08.2023 - 04.2024

Principal Blockchain Engineer

Sliver
02.2023 - 09.2023

Lead Smart Contract Developer

Despace Protocol
04.2021 - 03.2023

Co-founder and CTO

Lead Wallet
09.2019 - 05.2022

Blockchain Development Bootcamp - Blockchain Development

Consensys Academy

Blockchain Certified Developer - Blockchain Engineering

Web3Bridge

MTech - Mechanical Engineering (Production)

Rivers State University

B.Eng - Mechanical Engineering in the option of Industrial Production

Federal University of Technology Owerri

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Henry Onyebuchi