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Leihyn/README.md

Onatola Timilehin Faruq

Blockchain Engineer | DeFi Protocol Integration | Smart Contract Security

Portfolio LinkedIn Email Medium


About

Protocol-focused blockchain engineer specializing in DeFi integrations and developer education. I build production systems from smart contracts to full-stack applications, and translate complex protocols into content developers actually use.

Currently: Blockchain Engineer at DeFiConnectCredit - Production DeFi integration (Aave v3, Uniswap v3/v4, Curve, GMX). Security reviews, testing infrastructure, gas optimization.

Background: Uniswap Hook Incubator (UHI7) Graduate | School of Solana Student | Core Protocol Engineer at TruthBounty


Featured Projects

Sentinel — AI-Powered Smart Contract Auditor

Multi-Agent Security Framework | Solidity, Rust, Move, Cairo

Automated auditing framework for competitive security contests (Sherlock, Code4rena, Cantina). Multi-agent pipeline: reconnaissance, static analysis (Slither/Mythril), LLM-powered vulnerability hunting, and Foundry-based PoC generation with mainnet fork validation. Detects oracle manipulation, flash loan attacks, reentrancy variants, and access control issues across 4 smart contract languages.

Python Slither Mythril Foundry Semgrep


Sentiment — Dynamic Fee Hook for Uniswap v4

UHI7 Graduate Capstone | Base Sepolia | 83 Tests Passing

Production-ready Uniswap v4 hook implementing counter-cyclical dynamic fees (0.25%-0.44%) based on real-time market sentiment from 8 off-chain sources. Multi-keeper architecture with Chainlink Automation + Gelato, <30k gas overhead per swap. 42 unit + 8 integration + 11 invariant + 22 gas benchmark tests.

Solidity Foundry Uniswap v4 Chainlink


OmniSwap SDK — Cross-Chain Swap Middleware

TypeScript SDK | 6 Blockchains | 70KB+ Documentation

Production-grade SDK enabling atomic swaps across heterogeneous blockchains. Chain-specific adapter pattern, HTLC-based swap protocol, typed errors, exponential backoff retry logic, and comprehensive docs with API reference, tutorials, and working examples.

TypeScript Multi-Chain SDK Design


TruthBounty — Prediction Market Reputation Protocol

2nd Place, Seedify Hackathon | BNB Chain | Live Demo

Reputation infrastructure integrating 13 prediction markets (Polymarket, Azuro, Thales, PancakeSwap Prediction). TruthScore algorithm using Wilson Score confidence intervals, soulbound NFTs with on-chain SVG, and cross-chain indexing via custom subgraphs.

Solidity The Graph BNB Chain Soulbound NFTs


Nocturne — Private Payments on Solana

ZK Privacy Protocol | Deployed on Devnet | 97% Unlinkability

Privacy protocol with stealth addresses (DKSAP), fixed-denomination privacy pools with Merkle commitments, ZK proofs (Noir/UltraHonk) for withdrawals, and TEE relay for identity protection.

Rust Anchor Solana Noir Zero-Knowledge


Privacy Chronicles — Privacy Education Through Storytelling

Content Creation Track Winner, Zypherpunk Hackathon | Zcash & Mina Foundations | Live Demo

5-episode comic series (70+ pages) explaining zero-knowledge proofs through narrative. Immersive 3D solar system in React Three Fiber with accessibility-first voice narration.

Next.js React Three Fiber Three.js TypeScript


Technical Stack

Smart Contracts Full-Stack Infrastructure
Solidity, Rust, Anchor TypeScript, React, Next.js PostgreSQL, Redis
Foundry, Hardhat Viem, Wagmi, Ethers.js The Graph, IPFS
ERC standards, Uniswap v4 Hooks Node.js, Express Docker, Tenderly

Chains: Ethereum, Base, Arbitrum, Optimism, BNB Chain, Hedera, Solana


Experience

Blockchain Engineer @ DeFiConnectCredit | Jan 2025 - Present

  • Production DeFi integration: Aave v3, Uniswap v3/v4, Curve, GMX
  • Foundry testing framework with 95%+ coverage, 3 critical vulnerabilities caught pre-deployment
  • 35% gas cost reduction through assembly optimization

Core Protocol Engineer @ TruthBounty | 2024 - Present

  • Architected integration across 13 prediction market platforms
  • Designed reputation algorithm and soulbound NFT system

Education & Training

  • Uniswap Hook Incubator (UHI7) — Graduate, 15% acceptance rate
  • School of Solana (Ackee Blockchain) — Rust & Anchor development
  • Cyfrin Updraft — DeFi security, protocol engineering, auditing
  • BSc Physiotherapy — University of Ibadan (2024)

Let's Connect

Open to: Smart Contract Engineering, DeFi Protocol Integration, Security Engineering, Web3 Infrastructure

Email LinkedIn GitHub

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  1. nocturne nocturne Public

    Nocturne: Private payments on Solana using stealth addresses (DKSAP), ZK proofs (Noir/UltraHonk), and TEE relays. Fixed-denomination privacy pools with 97% unlinkability. Deployed on Devnet.

    TypeScript

  2. TruthBounty TruthBounty Public

    TruthBounty: Decentralized reputation protocol for prediction markets. Track accuracy across PancakeSwap & Polymarket, earn soulbound NFTs, climb leaderboards with TruthScore, enable copy trading. …

    Solidity