mahdidarabi

Designed and implemented a Threshold Signature Scheme (TSS) wallet in Go, building on binance/tss-lib, with a custom recovery module based on BIP44; deployed to secure $50M+ of exchange assets. Built a batch withdrawal pipeline for EVM networks, reducing on-chain fee costs by 30%. Contributed to hot/cold wallet separation and key management architecture.

Designed and shipped cross-chain bridge architecture enabling trust-minimized BTC-EVM transfers; system processed $100M+ in cross-chain volume in production with zero critical incidents during tenure. Authored upgradeable Solidity contracts (transparent proxy pattern) covering minting, redemption, validator coordination, locker collateralization, and fee accounting. Integrated the LayerZero messaging layer to extend the bridge across 5+ EVM networks (Ethereum, BNB Chain, Polygon, and others), reducing per-chain integration time by 50%. Drove end-to-end testing strategy: unit tests, fork-based integration tests, and adversarial scenario coverage using Hardhat. Collaborated with auditors and incorporated findings into remediation PRs and deployment procedures.

Refactored core contracts to a proxy-based upgradeable architecture, enabling safe iteration on a live protocol. Expanded Hardhat test coverage to harden against regressions on deployed contracts. Built NFT factory contracts supporting platform mechanics and user incentives.

Led blockchain research projects in the energy and healthcare verticals; coordinated technical execution across a team of 3 PhD researchers. Developed Hyperledger Fabric chaincode (Go) for a decentralized debt-tracking system.