Actually he is an alien, not a normal cyber beetle.
Alien-made artificial biocomputer, almost a living nuclear fusion reactor, even his "blood" is Deuterium Oxide, but he just enjoying his life as a normal engineer in space station. There was no drama such as vengeance in his life, and if there was, it was just a desire to return to Earth each month, to feast on melon and muscadine grapes, and petting his IKEA shark.