Joe Rozner
Staff Security Engineer at Snap Inc.
Los Angeles, California, United States
Summary
👤
Senior🎓
Top SchoolJoe Rozner is a Staff Security Engineer and founder with 15 years of experience building offensive security, security engineering, application security, and identity systems across consumer-scale companies. He has led and scaled Red Team and offensive programs at Yahoo—delivering enterprise-wide passkey and hardware-backed SSH deployments, spearheading detections that protected hundreds of millions of users, and influencing multi-hundred-million dollar M&A decisions. As CEO of Based Security he’s commercializing zero trust solutions rooted in immovable, attestable, hardware-backed identities, and he joins Snap bringing deep hands-on exploit development, source-audit, and remediation experience. Joe’s background as a software engineer and inventor (contributions to patented products and tooling like ASHIRT) gives him rare fluency across product, engineering, and security operations. He’s known for driving measurable outcomes—100% device compliance, large cost savings from program optimization, and sustained team capability growth—while mentoring others to rapid promotion. Based in Los Angeles, he combines startup-builder pragmatism with enterprise-scale leadership and a strong bias toward hardware-backed, provable security controls.
16 years of coding experience
17 years of employment as a software developer
Bachelor's Degree, Philosophy, Computer Science, Bachelor's Degree, Philosophy, Computer Science at California State University, Northridge
Github Skills (200)
command-palette10
ninja10
usbip10
exploit10
windows10
ruby10
decompilation10
gdb10
powerpc10
windows-subsystem-for-linux10
security10
python-api10
debugging10
ctf10
discord10
Programming languages (23)
Github contributions (5)
ashirt-ops/aterm
Mar 2019 - Apr 2022
It records your terminal, then lets you upload to ASHIRT
Contributions:62 reviews, 11 commits, 72 PRs in 3 years 1 month
recordsreportingoffensive-securityred-teamparanoids
jrozner/msp430-asm
Jan 2021 - Jan 2023
Dissassembly library for msp430 machine code
Contributions:2 releases, 1 review, 52 commits in 2 years
machine-codemspdisassemblymicrocorruptionmsp430
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