Welcome to


Hi, welcome to csn3rd.com. As you can probably guess, I use the handle “CSN3RD” on the internet. Out in the real world, my name is Jonathan Ho. I am a software engineer at Arista Networks working on multicast protocols. In my free time, I am a big nerd and study things I find fascinating, such as topics in software, security, algorithms, robotics, and much more. To learn more about me, check out my about page.

Here on my site, I have a writeups section to feature my solutions to interesting challenges I encountered in various programming and cybersecurity competitions. Occasionally, I write blog posts about my experiences or ideas. I am still building this site so these are a bit empty at the moment but will start filling up as I move my content from other sites/accounts.

I hope you find my website useful. You can connect with me using the email/social media accounts listed in the footer below. Thanks for visiting!