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ST

Sai Thungathurthy

Smart Contract Engineer

๐Ÿ“ Charlotte, NC

๐ŸŸขAping In

Smart Contract Engineer with 5+ years shipping production Solidity protocols on mainnet. Deep expertise in ERC-4626 vault architecture, lending market design, DeFi yield strategies, RWA tokenization, and AMM mechanics. Shipped institutional-grade yield-bearing vaults, scaled a DeFi platform to $1.2M TVL, and improved AMM fee capture by 25% via Uniswap V4 Hooks. Security-first mindset with 100% Foundry coverage and zero critical vulnerabilities.

Skills

DeFi Protocol Design9/10
Solidity9/10
ERC-4626 Vault Architecture9/10
Foundry (Unit/Fuzz/Invariant Testing)9/10
Gas Optimization / Yul Assembly8/10
EVM Internals (8/10)Uniswap V4 Hooks / AMM Design (8/10)Smart Contract Security (8/10)Chainlink Oracles & CCIP (8/10)UUPS / Diamond Proxy Patterns (7/10)Cross-Chain Bridge Protocols (7/10)Hardhat (7/10)RWA Tokenization (ERC-1400) (7/10)Slither / Mythril (7/10)Threat Modeling (7/10)TypeScript (6/10)Docker / CI/CD (5/10)Python (5/10)MongoDB (4/10)GCP Cloud Infrastructure (4/10)

Work Experience

DeFi Engineer

Gala Games

Sept 2025 โ€” Present

Research and design new protocol mechanisms for cross-chain digital asset infrastructure. Lead protocol design decisions balancing trust assumptions between permissioned (Hyperledger Fabric) and permissionless (Ethereum) environments. Implement production Solidity smart contracts for token lifecycle management including vault-style deposit/withdrawal mechanics, collateral tracking, and automated settlement. Lead cross-chain bridge architecture decisions evaluating cryptographic verification tradeoffs and capital efficiency.

Protocol Architect

Colb Finance

Dec 2024 โ€” Aug 2025

Researched, designed, and implemented a production ERC-4626 yield-bearing lending vault with oracle-driven interest rate mechanics, collateralization management, automated liquidation thresholds, and Chainlink price feed integration. Reconciled ERC-4626 open vault mechanics with ERC-1400 compliance-constrained transfers via custom middleware. Achieved 100% Foundry test coverage with zero critical vulnerabilities through mainnet deployment. Reduced on-chain execution costs by 40% through Yul assembly, storage packing, and calldata encoding.

Smart Contract Engineer

Uniswap Hook Incubator, Atrium Foundation

Nov 2024 โ€” Jan 2025

Designed and implemented novel AMM fee capture mechanisms via Uniswap V4 Hooks improving capital efficiency by 25%. Built comprehensive invariant testing suites with 10,000+ Foundry fuzz iterations validating pool state consistency and fee accounting. Led trade-off analysis on hook design patterns for optimal mainnet deployment architecture.

Blockchain Developer

Reno Plas Pvt Ltd

Jun 2019 โ€” Dec 2022

Built and scaled a production DeFi platform to $1.2M TVL on mainnet, shipping Solidity protocols for vault-based token management, lending primitives, liquidity provisioning, staking, and automated yield distribution across Ethereum and Polygon. Designed cross-chain bridge protocols with Merkle proof validation and nonce-based replay protection. Implemented AMM integration, aggregator-compatible settlement flows, and cross-chain asset routing. Maintained zero security incidents over 3+ years of production operation.

Education

Indiana Wesleyan University

MS ยท Information Technology Management

JNTU Hyderabad

BTech ยท Mechanical Engineering