I'm a software and blockchain engineer with experience building software and decentralized finance (DeFi) solutions. My expertise lies in creating scalable systems from ground up, and transforming concepts into applications. I'm passionate about application level engineering, DeFi and curious about blockchain protocol architecture and engineering, low-level etc. I create technical content at break-into-defi, build useful open-source projects.

My technical expertise allows me to architect and implement blockchain and web solutions.

• Blockchain & smart contracts: solidity, design patterns, Gas optimization (for smart contracts on EVM).
• DeFi primitives: AMMs, decentralized swaps, vault, MEV and IL strategies.
• Backend web applications: node.js + express, mongoDB (API design, routing, authentication, sessions, DB interactions).
• Architectural expertise: web application architecture (REST APIs, MVC pattern), Smart contract architecture (state machines, on-chain workflows), Event-Driven Architecture.

Throughout my career, I have build and contributed to (via open-source) a wide array of sophisticated systems:

• Developed Secure Smart Contracts: authored, tested, and deployed complex Solidity smart contracts for Decentralized Exchanges (DEXs).
• Contributed to the cngn stablecoin price oracle solution: refactored and secured the oracle integration powering the cNGN stablecoin, a wrapped central bank digital currency (CBDC).
• Authored the Handling Deltas for Liquidity Modifications section of the Uniswap V4 documentation: explained discrepancies between static liquidity math and real execution results due to tick crossings, price movement, and rounding. Outlined best practices for slippage checks and delta-based settlement, improving reliability of custom router implementations.
• Created Advanced Trading Bots: developed profitable MEV (Maximal Extractable Value) and liquidation bots that interact with complex DeFi protocols, requiring deep blockchain and economic understanding.
• Blogs:
  "Explained Uniswap V3 advanced mechanics; the core concept of concentrated liquidity, reserves, liquidity math, position management".
  "Mechanics of Liquidity distribution in Uniswap V3 - an understanding of execution tracing, slippage analysis and liquidity distribution".

First Principles Thinking: I believe in building from the ground up, ensuring a deep understanding of the core protocols and systems I work with.

I'm always open to discussing new technologies, collaborating on ambitious projects, or exploring opportunities in the DeFi space.

• Twitter / X: paulelishaa
• Email: ajaoireoluwa1@gmail.com.