Tim De Waal
Senior Principal Security Researcher at Clarity
Satellite Beach, Florida, United States
Summary
👤
SeniorTim De Waal is a Member of Technical Staff at OpenAI with a decade of experience operating at the intersection of Linux, networking, and security, specializing in vulnerability research and reverse engineering. He has led security efforts at companies ranging from Thales to Finite State and Clarity, driving architectural decisions, high-impact tooling, and major performance improvements like a 500% faster unpack process. Tim combines deep low-level expertise—SELinux policy design, binary exploitation, custom archive reverse engineering—with developer-focused practices such as TDD, mentoring, and improving observability. He’s an active CTF participant and educator, publishing beginner-friendly courses and challenge walkthroughs to help others break into cybersecurity. Based in Satellite Beach, Florida, he pairs hands-on systems work with clear technical writing and a knack for turning obscure formats and vulnerabilities into actionable, auditable findings.
10 years of coding experience
13 years of employment as a software developer
English, Dutch, Afrikaans
Github Skills (100)
fact10
exploit10
buffer10
extraction10
assembly9
assembler9
dub9
linux8
x86-648
arm8
security8
snappy8
shellcode8
reverse-engineering8
keystone8
Programming languages (8)
Github contributions (5)
Caesurus/airventriloquist
Oct 2015 - Jun 2020
Contributions:4 commits, 2 pushes, 1 branch in 4 years 9 months
Caesurus/how2fsb
Apr 2017 - Sep 2021
Contributions:22 commits, 27 pushes in 4 years 5 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.