Ryan Sears is a security-focused engineer and founder with 14 years of experience building practical, product-driven defenses from Palo Alto. As founder of Cali Dog Security and creator of Certstream, he combines hands-on exploit development and Python engineering to ship products like Phishfinder that make phishing protection accessible to businesses of any size. His background includes Infosec engineering at Palantir and contributions to the well-regarded OpenRCE sulley fuzzing framework, reflecting deep experience in fuzzing, tooling, and core security infrastructure. He runs his consultancy on a profit-sharing model to align engineers with outcomes and—self-described as an "artisan keyboard masher"—brings a hands-on, elegant approach to solving hard problems.
14 years of coding experience
5 years of employment as a software developer
Bachelor's degree, Computer Networking and System Administration, Bachelor's degree, Computer Networking and System Administration at Michigan Technological University
A pure-python fully automated and unattended fuzzing framework.
Role in this project:
Back-end Developer
Contributions:67 commits, 11 PRs, 11 pushes in 4 years 6 months
Contributions summary:Ryan primarily contributed to the core functionality of the `sulley` fuzzing framework, focusing on improving code quality and addressing bugs. They removed carriage return characters from text files across the project using a find and replace command. Further work involved refactoring the logging system, replacing the `log()` function with a more robust Python logging facility. Additionally, the user fixed a bug in the `sessions.py` file.
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