\item Created and maintained a \href{https://github.com/avatao-content/baseimage-tutorial-framework}{framework} still used to create hundreds of interactive IT security tutorials and hacking labs
\item Managed open-sourcing efforts and led development of said framework --- writing, reviewing and merging code, dealing with licensing issues, coordinating with management, product owner and contributors, etc.
\item Created IT security exercises in a variety of topics: from buffer overflows, cryptography and API design to web security
\item Designed and implemented a library used to build all future backend web services
\item Gave several talks and workshops:
\begin{footnotesize}
\begin{itemize}
\item\href{https://www.devseccon.com/seattle-2019/speaker/kristof-toth/}{DevSecCon Seattle 2019 --- Containerizing IT Security Knowledge}
\item\href{https://2019.owaspseasides.com/events/game-of-chromes-a-story-of-protecting-critical-web-applications-using-owasp-top-10}{OWASP Seasides 2019, South Goa, India --- A story of protecting critical web applications using OWASP Top 10}
\item\href{https://hacktivity.com/index.php/web-security-basics-owasp-top10-training/}{Hacktivity 2019, Budapest --- Web Security / OWASP TOP 10 training}
\end{itemize}
\end{footnotesize}
\item Assisted sales team by lecturing technical demonstrations and explanations to customers
\item Attended conferences to provide engineering insight and technical detail for product pitches
\item Physical and virtualized servers running: DDNS, VPN, internal PKI, monitoring, Git, private cloud, network storage, home multimedia, etc.
\item Networking equipment and other stuff: routers, switches, UPSes, SoC boards, NASes, old laptops. Anything I can tinker with really.
\end{itemize}
\end{footnotesize}
\item Casually breaking and fixing my Arch Linux installations
\item Using a virtual machine with VFIO GPU passthrough to play video games on a machine running Linux
\item Writing code for whatever reason I can come up with: streaming microphone audio from an old laptop to the PulseAudio server running on your desktop PC is way easier than buying an actual mic
\item Learning, taking my time to understand how things work from the ground up (be that technical or else)