Caretaker

Ethan Bryant was supposed to fall asleep on a ship leaving Earth and wake up fifty years later with his family on the planet Minea. Instead, after the ship's caretaker the lone human in charge of monitoring the ship's vital systems suddenly died, the ship's computer locked Ethan out of his stasis chamber and gave him the job. That was five years ago. Five years of checking to make sure everything runs smoothly on a ship Ethan knows almost nothing about.