a
arnsec

ArnSec

@arnsec

Smart Contract Security Researcher, Solidity Engineer

India
English, Hindi
About me
Smart Contract Security Researcher with 3+ years of hands-on experience auditing DeFi protocols. I specialize in: (1) Smart contract audits — access control, accounting, and logical vulnerabilities (2) Security testing — Foundry based fuzzing, invariants testing and exploit PoC development (3) Solidity development — contracts, integrations, upgrades and debugging. I’ve responsibly disclosed multiple Critical and High-severity vulnerabilities, including issues putting $200k+ at risk, and earned 3x Top-3 finishes in competitive audits. Message me to discuss your protocol.... Read more

Skills

a
arnsec
ArnSec
Offline • 
Average response time: 1 hour

See my services

Blockchain Security & Audits
I will audit your solidity smart contract for security
From$100 / projectMore details

Portfolio

Work experience

Self_Employed

Independent Smart Contract Security Researcher

Self Employed • Self-employed

Dec 2024 - Present • 1 yr 9 mos

Conduct independent security research on live Solidity/EVM and DeFi protocols, with a focus on identifying high-impact flaws in protocol logic, accounting, asset flows, permissions, and cross-chain contracts. I’ve responsibly disclosed multiple Critical and High-severity vulnerabilities through bug bounty programs, including a recent Critical issue that placed more than $200k+ in funds at risk.

Independent

Smart Contract Security Auditor

Independent • Full-time

Dec 2022 - Dec 2024 • 2 yrs

Conducted independent smart contract security reviews through competitive audits on Code4rena, Sherlock, and other platforms, covering complex DeFi systems including yield markets, stablecoins, AMMs, and restaking protocols. Notable placements: - Spectra Finance (Code4rena) - 3rd place · Interest Rate Derivatives. - Usual V1 (Sherlock) - 3rd place · Stablecoin / RWA. - Napier Finance (Sherlock) - 4th place · Yield Trading / LST-LRT integrations. - Abracadabra MimSwap (Code4rena) - 9th place · Stableswap AMM. - Additional participation: Concrete (DeFi derivatives) and Renzo (liquid restaking) on Code4rena.