Aiguo Q.
Blockchain, NFT & Cryptocurrency | Blockchain Security, ERC-1155
I specialize in smart contract security with over 10 years of experience in cryptographic systems and more than 5 years focused on blockchain security and DeFi protocol auditing. I have a strong record of success in competitive audits, achieving top finishes and identifying critical vulnerabilities in complex systems. My expertise includes in-depth knowledge of EIPs and familiarity with prominent DeFi protocols like AAVE and Uniswap. I excel in manual auditing and use a range of tools, including Code4rena and Slither, to ensure the highest security standards. My previous role as Head of Blockchain Security Operations at a leading crypto platform honed my skills in protocol-level security and cryptographic key management. If you are looking for a knowledgeable engineer who can enhance the security of your blockchain project, I am ready to help you secure your assets and build robust solutions.
Earnings and projects
Last 6 months ÷ 4.6 months active (since Jun 2026)
Last 6 months: $1.1k
$1.1k in the last 6 months
Earnings, last 30 days
Skill rankings: Top 14% in Solidity
Ranked by MRR among everyone on Upwork with the skill.
- #82Smart Contract554 freelancers · 🇨🇳 #1Top 15%🇨🇳#1 of 3
- #95NFT495 freelancers · 🇨🇳 #1Top 19%🇨🇳#1 of 3
- #115Solidity849 freelancers · 🇨🇳 #1Top 14%🇨🇳#1 of 7
- #347Cryptocurrency1,788 freelancers · 🇨🇳 #7Top 19%🇨🇳#7 of 13