Smart Contract Engineer

Built practice EVM-based DeFi protocols using Solidity and Foundry, including collateralized lending and borrowing, an AMM pool, a collateral-backed stablecoin, and a cross-chain bridge.

Implemented and reviewed collateral factors, health-factor logic, liquidations, reserve-based pricing, liquidity accounting, minting and burning flows, authorization, message validation, and replay-handling considerations.

Used unit, fuzz, invariant-style, and integration tests to validate expected behavior, access controls, accounting relationships, state transitions, and selected adversarial scenarios.

Implemented Solidity practice contracts for ERC-20 and ERC-721 tokens, staking, vesting, multisig wallets, timelocks, DAO governance, NFT marketplace mechanics, token streaming, proxy patterns, and oracle integrations.

Applied OpenZeppelin patterns, Chainlink data feeds, and Foundry testing workflows to exercise contract behavior and investigate edge cases.

Analyzed DeFi challenge contracts and protocol logic to develop exploit hypotheses and validate findings through tests.

Practiced tracing external calls, state transitions, protocol accounting, oracle assumptions, and access-control boundaries. Worked toward producing vulnerability reports covering root cause, impact, proof of concept, and remediation.