Simon started as a Map Creator with Rezzus, he had his own YouTube Channel presenting cool Minecraft maps, before eventually creating his own "Hypixel Network". The Hypixel server originally featured Simon's own maps, later expanding to include several unique map creations, which have since become some of the most well-known Minecraft Minigames of all time, even earning several Guinness world records.
Simon was appointed CEO of Hypixel Studios for many years. He also was the lead developer on Hytale. Recently, Simon stepped down from the positions and gave them to Noxy, saying he wants to spend more time on "family, health, and friends." Simon will still be a Hytale advisor, and will still be active with the Hypixel Minecraft server, but is no longer in charge of the two.