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Ay-obami/README.md

Oyebisi Ayobami

Solidity & Web3 Protocol Engineer

I build security-focused smart contracts, DeFi protocols, cross-chain systems, and full-stack Web3 applications.

My work is centered on Solidity, Foundry, DeFi protocol architecture, smart-contract testing, oracle integrations, on-chain authorization, and Web3 frontend/backend integration.

I’m especially interested in systems where correctness matters: lending and liquidation logic, tokenized-asset workflows, cross-chain verification, signature schemes, access control, treasury execution, and other capital-sensitive smart-contract flows.


Featured work

Fair Witness — Trust-Minimized Web3 Treasury

A security-focused execution system where external reasoning can propose actions, but deterministic smart-contract policy remains the final authority over capital movement.

Highlights: Solidity/Foundry, cross-chain evidence verification, bounded treasury execution, replay/deadline/slippage/rate-limit protections, adversarial testing, TypeScript infrastructure, React frontend, and public testnet execution evidence.

View repository

Clearline — RWA Redemption & Custody Attestation

An on-chain redemption pipeline for tokenized real-world assets with finality-aware processing, ERC-3643-style compliance re-checks, 2-of-3 EIP-712 signing, manual-review controls, and on-chain settlement attestations.

Highlights: Solidity/Foundry, 44 tests, ~90.6% core-contract line coverage, Next.js frontend, Node.js signer/custodian services, and Blockscout-verified HSK testnet contracts.

View repository

Lending & Borrowing Protocol — Modular DeFi Architecture

A modular Solidity lending protocol supporting supply, withdrawal, collateralized borrowing, repayment, liquidation, reserve-level risk controls, variable interest rates, and Chainlink pricing.

Highlights: Solidity, Foundry, Chainlink, modular pool architecture, liquidation logic, interest-rate strategy, unit testing, React, and wagmi integration.

View repository


What I work on

  • Smart contracts: Solidity, EVM architecture, ERC standards, access control, EIP-712 signatures
  • DeFi: lending, borrowing, liquidations, staking, vault-style flows, treasury systems, tokenization
  • Testing & security: Foundry unit/integration/fuzz/invariant testing, adversarial scenarios, replay protection, authorization boundaries
  • Oracles & infrastructure: Chainlink, cross-chain evidence, contract verification, deployment scripts, CI
  • Web3 integration: TypeScript, Node.js, React, Next.js, wagmi, viem
  • Additional protocol work: Rust, Stellar Soroban, zero-knowledge systems

Engineering approach

I prefer protocol designs with explicit trust boundaries, testable state transitions, and clear operational assumptions. For high-impact actions, I favor deterministic on-chain enforcement over trusting off-chain software to behave correctly.

Typical workflow:

Specification → Architecture → Smart Contracts → Tests → Deployment → Frontend/Backend Integration → Documentation


Core stack

Solidity · Foundry · Ethereum / EVM · Chainlink · TypeScript · Node.js · React · Next.js · wagmi · viem · Rust / Soroban


Open to work

I’m available for Web3 projects involving smart-contract development, DeFi protocol engineering, contract debugging/refactoring, testing, deployment, security hardening, and dApp integration.

For project discussions, the fastest starting point is a repository, protocol specification, failing test suite, or concise technical scope.

Popular repositories Loading

  1. fair-witness fair-witness Public

    Trust-minimized Web3 treasury with cross-chain evidence, deterministic on-chain policy and bounded autonomous execution.

    TypeScript 1 1

  2. Clearline Clearline Public

    TypeScript 1

  3. ZK-VOTE ZK-VOTE Public

    Forked from ZK-VOTE/ZK-VOTE

    Zero-knowledge anonymous DAO voting on Stellar Soroban using Protocol 25 (BN254 + Poseidon).

    TypeScript 1

  4. CrossOdds CrossOdds Public

    JavaScript 1

  5. Crowdfunding Crowdfunding Public

    Solidity

  6. Inventory-sheet-Automation Inventory-sheet-Automation Public

    JavaScript