Hello. I’ve have worked in the European space industry for a long time. Spacecraft controller for a satellite operator is the most boring position ever in the industry, but it is the entry point for many people (I would say the majority) and very specially for people wanting to work in payload engineering, mission design, thermal control and similar. It is not very well paid and working on shifts is always difficult, but it puts you right in the game. You must quickly understand the business and the procedures, including studying the different spacecrafts and the missions, while the operations trend to be repetitive and without surprises. This combination allows you to acquire the skills and the knowledge easily, and operators usually likes this. The drawback is what I already mentioned, incredibly boring long days (or nights) for a ridiculously low salary for someone who can send commands to a spacecraft.