About me
My name is Christopher Loessl. I’m a Senior Security Engineering Manager at Visa, where I build and lead teams that secure systems at scale.
With 25+ years of experience in software development, Linux/Unix, networking, and security, I bring both hands-on technical depth and leadership — from defining security strategy and embedding security into engineering culture to shipping code to hundreds of millions of users. I’ve contributed to open-source projects like VLC, OWASP ASVS, Adium, and NewsBlur.
My background spans application security, cloud security, security operations, and team building. I care about getting the fundamentals right — whether that’s a threat model, a CI pipeline, or a C program.
In my free time, I enjoy reading 📚, hiking 🏔️, climbing 🧗, squash, and exploring the universe with my 8” Dobsonian telescope 🔭.
Links
https://github.com/hashier
https://chaos.social/@hashier
christopher@loessl.org