Hello stranger!, I’m Gustavo Grieco, a freelancer security researcher focus on blockchain vulnerabilities and developer of automatic tools (e.g. fuzzers). Previously working at Trail of Bits.
Also tech consultant and stakeholder of Earthical 🌱.
Experience
Freelance security researcher (since April 2025)
Security Engineer (from Junior to Principal) at Trail of Bits from September 2017 to April 2025 (~8 years): specialized on blockchain audits (Solidity, EVM, Cosmos-SDK), fuzzing, tool development.
Phd student at CIFASIS (CONICET-UNR) Apr 2013 - Jul 2018 (~5 years): my thesis was “Vulnerability detection in software using Machine Learning”.
Also wrote some software, published some papers and did a number of security audits.
Current State
Resting a bit after 8 amazing years working for Trail of Bits but happy to start discussing freelance projects.
Volunteering to help the hevm team with extensive testing of their symbolic execution engine and some code to improve it.
Writing a mystery-o-matic puzzle book. Notify me when it’s ready!