Space wayfarer
Sci-fi. Humorous. Like Doctor Who. Job type. A person who uses rockets to get from solar system to solar system to communicate with planets about what they need to know. A person's entire livelihood is serving an area of solar systems.
The "Space wayfarer" Chris was traveling through space being an overlord to planetary systems, but an underling to the galactic emperor. A space wayfarer has the role of advancing planets in critical development.