11 months building in Web3 • 45+ Smart Contracts • 300+ consecutive days shipping

I'm a self-taught Solidity developer specializing in security-first smart contract development and DeFi protocol infrastructure. Over the past 11 months, I've shipped 45+ smart contracts publicly, progressing from basic storage contracts to multi-strategy DeFi vaults and stablecoin protocols.

My approach centers on building production-grade, battle-tested contracts with 100% test coverage standards, comprehensive Foundry testing (unit + fuzz + integration), and security patterns built from first principles. I think like an attacker to build defensive systems.

Current Status: Open to smart contract development, DeFi protocol engineering, and security auditing opportunities.

Open-source security framework with 18+ modular contracts built from scratch

Production-ready smart contract infrastructure designed to understand security patterns deeply, not just import them.

• 18+ modular contracts: Access control, reentrancy guards, pausability, ETH recovery mechanisms
• Full ERC20 implementation: Complete standard with Burnable, Mintable, Capped, and Pausable extensions
• Attack simulation contracts: KingReentrancyAttacker and KingVulnerableContract for security education
• v1.6.0: Maintained with proper semantic versioning, 8 public releases
• 100% test coverage: Battle-tested in production across KYA and KingUSD projects

Tech Stack: Solidity 0.8.30 • Foundry
Links: Repository

Multi-strategy DeFi yield vault with automated capital allocation

Professional yield optimization protocol demonstrating protocol-level architecture and infrastructure design.

• ERC4626-inspired share mechanism for fair value distribution
• 100+ strategy support: Architected to handle dynamic capital allocation across unlimited strategies
• VaultCore, StrategyManager, Rebalancer: Multi-contract system with 100% test coverage
• Real-time APY tracking with automated rebalancing
• Critical bug fix: Identified and resolved 9% deposit calculation error during development

Tech Stack: Solidity 0.8.30 • Foundry • Next.js • TypeScript • Base Sepolia
Links: Repository • Live Demo • Contract on BaseScan

Decentralized overcollateralized stablecoin protocol (In Development)

Stablecoin protocol inspired by MakerDAO architecture, demonstrating understanding of complex DeFi economic systems.

• Multi-contract system: KUSDEngine (collateral management), KingUSD (ERC20 token)
• Health factor calculations with liquidation mechanisms and bonuses
• Chainlink oracle integration for price feeds
• Uses own security modules: KingReentrancyGuard, KingClaimMistakenETH in production context
• Multi-collateral support: WETH and WBTC with extensible architecture

Tech Stack: Solidity 0.8.30 • Foundry • Chainlink
Links: Repository

Soulbound NFT system built in 72-hour hackathon

Complete reputation-based NFT system demonstrating ability to ship production-quality code under tight deadlines.

• Reputation-gated minting with tiered rewards (Gold/Silver/Bronze)
• Chainlink oracle integration for decentralized reputation verification
• 98.71% test coverage with comprehensive unit and integration tests
• 72-hour build time: Ethos Vibeathon 2026 hackathon submission

Tech Stack: Solidity 0.8.30 • Foundry • Chainlink • Base Sepolia
Links: Repository

Provably fair lottery system powered by Chainlink VRF

Decentralized raffle demonstrating advanced oracle integration and automation patterns.

• Chainlink VRF v2.5 for verifiable random winner selection
• Chainlink Automation (checkUpkeep, performUpkeep) for automated draws
• Event-driven architecture for full transparency
• Comprehensive Foundry tests with unit, integration, and fuzz coverage

Tech Stack: Solidity • Foundry • Chainlink VRF • Chainlink Automation
Links: Repository

Smart Contract Development

• Solidity 0.8.x (45+ contracts shipped)
• ERC standards (ERC20, ERC721, ERC4626)
• DeFi protocol design (vaults, stablecoins, yield strategies)
• Gas optimization and storage patterns
• Access control and ownership patterns

Testing & Security

• Foundry (unit, integration, fuzz testing)
• 100% test coverage standard across major projects
• CEI pattern, reentrancy guards, pausability
• Attack simulation and defensive programming
• Security-first development methodology

Blockchain Integration

• Chainlink (VRF, Automation, Price Feeds)
• Ethereum and Base (Sepolia, Mainnet)
• Multi-chain deployment and verification
• Protocol integration patterns

Development Tools

• Foundry (forge, cast, anvil)
• Git/GitHub (branching, PRs, releases)
• VS Code, Remix IDE
• Etherscan, BaseScan

Smart Contract QA Engineer (Contract) • Contract.dev • Dec 2025 - Jan 2026

• Tested private testnet platform that replays mainnet with GitHub contract imports
• Identified bugs and edge cases across DeFi simulations and analytics features
• Provided improvement suggestions and proposed features for developer adoption

Independent Smart Contract Developer • Self-Employed • Apr 2025 - Present

• Built 18+ contract security framework with 100% test coverage
• Developed multi-strategy DeFi vault supporting 100+ strategies
• Maintained 300+ day consecutive build streak
• Grew organic following to 441 GitHub followers

Cyfrin Updraft Certifications:

• ✅ Blockchain Basics Course
• ✅ Solidity Smart Contract Development
• ✅ Foundry Fundamentals
• 🔄 Advanced Foundry (In Progress)

Continuous Learning:

• Reading production protocols (Aave, Compound, Uniswap) for architectural patterns
• Active participation in Web3 developer communities
• Daily building and experimentation with new patterns

Security First • Every contract undergoes rigorous testing with 100% coverage standard. I build attack contracts to test defenses and think like an attacker to build secure systems.

Build From Scratch • I don't just import OpenZeppelin—I rebuild security patterns from first principles to deeply understand why they exist and how they work.

Ship Consistently • 300+ consecutive days of building proves that consistency compounds. Small daily progress leads to significant long-term results.

Test Everything • Unit tests, fuzz tests, integration tests. If it's not tested, it's not done. 100% coverage isn't optional—it's the standard.

• Building KingUSD stablecoin with liquidation mechanisms
• Reading production DeFi protocols for architectural learning
• Exploring security auditing and bug bounty participation
• Contributing to open-source Web3 tooling and education

I'm open to opportunities in:

• Smart Contract Development — Building secure, gas-optimized DeFi protocols
• DeFi Protocol Engineering — Vaults, AMMs, lending platforms, stablecoins
• Security Auditing — Reviewing contracts and identifying vulnerabilities
• Contract Work — Short-term projects and technical consulting
• Junior-to-Mid Level Roles — Full-time positions with mentorship and growth opportunities

Location: Nigeria (Remote)
Status: 🟢 Open to opportunities worldwide

I'm always open to discussing Web3, Solidity, DeFi architecture, or collaborating on projects.

Building secure, scalable smart contract infrastructure one day at a time.

_{⭐ If you find my work valuable, consider starring the repositories!}