Quantstamp

Valerian Callens

Languages

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Domain Expertise

DeFi

Bridges

Layer 2s

Oracles

Cross Chain Applications

Top projects

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Work Experience

Years Experience

Years at Quantstamp

Audits Completed

Highlights

Fluent in many ecosystems and languages (EVM: Solidity | Rust | Golang| TON: FunC, Tact| Typescript | Canton: DAML)
Audited the Hemi Bitcoin Tunnel System, which bridges the Bitcoin network and enables minting of Hemi BTC using over-collateralized vaults and securing over $300m in TVL
Audited Venus Protocol, a fork of Compound Finance and MakerDAO on the BNB chain, securing over $2 billion in TVL
Audited Kiln DeFi, a protocol allowing integrators to deploy ERC-4626 vaults that can interact with DeFi protocols via a set of connectors managed by Kiln
Conducted several Sonic audits covering validators, delegators, and the cross-chain bridge
Audited Onre.finance, a fully licensed on-chain reinsurance managing over $100m in TVL
Audited Sequence Embedded Wallet, which handles authentication and authorization for the user wallet and holds private keys for each of the projects (tenants). This wallet uses an AWS Nitro implementation in conjunction with a Trust Third Party KMS configuration (which Quantstamp also audited)

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Personal Research

Interested in penetration testing research, focusing on identifying emerging threat vectors to proactively strengthen organizational defenses.
Focused on the development of specialized AI tooling for automated smart contract auditing, identifying complex logic flaws and reentrancy vulnerabilities.

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