My name is Calle “Zeta Two” Svensson. I’m a 30 year old graduate in engineering physics with a master’s degree in computer science focused on IT security. Computers and programming have been a very large part of my life since I was very young. This site is the fifth incarnation of since the original site I created in 2005 and acts as a blog about IT and other technology topics.

I currently work as a security engineer at Google as part of their internal red team.

As stated above I’m into computer science a lot and is proficient with most mainstream languages with my favorites being Python, Rust and Scala. Since about 2013 I have focused a lot on IT security, both academically and professionally, following a very long interest for the subject. I used to compete a lot in Capture the Flag competitions, primarily together with the team HackingForSoju but I have also guest played with some other teams from time to time. I also founded the Scandinavian collaboration team NorseCode. Recently however, I have spent less time on CTFs as I am trying to focus on other topics. Aside from computers, I do long distance running which is very good for clearing the head or thinking about difficult problems. If you want to know more about me, feel free to contact me through any of the methods listed at the bottom of the page.