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  • About This Site Tommie's blog

    This is a blog about technology and life. It is authored by Tommie Gannert, a freelance software engineer and SRE from just outside Stockholm, Sweden. Currently living just outside Zürich, Switzerland.

    I love embedded devices, IoT, reverse engineering of all kinds, and building large-scale distributed systems. Outside of my primary interest in software and hardware, I enjoy cycling and thinking about philosophies like Stoicism.

    I’ve worked as an SRE of a machine learning system in Google Dublin, and as a software engineer for core Google Assistant in Google Zürich.

    Before that, I was one of the first employees of Spotify, back in 2007, where I built the “reverse proxy” that all clients connected to, led some backend infrastructure work, and cared deeply about improving production monitoring. The first machines this was running on were 8-core, and we could do 80k connections easily, of which 8k were actively streaming. At some point, a load-balancing issue caused 200k connections per machine, and I know for sure that was beyond the upper bound. Still happy with the 80k normal load.