My husband manages a museum and although it's not his background, he does work alongside curatorial and education staff.
The education team are almost all qualified/experienced teachers with a thorough knowledge of the national curriculum. Their work is mainly at KS1 and 2 level, although they do cater for secondary school and adult education groups too. Some of them are employed directly by the local authority that owns the museum, others are externally funded through a body called Renaissance.
On the curatorial side, he has a couple of permanent, full-time Museum Assistants and a number of part-time and casual staff. They all get involved in museum tours, renactments and various other events, often alongside the learning team. They don't have to be specialist qualified - an interest in history and museums and a flair for customer service is more important.
However, one of the full-time assistants aspires to be a curator at some point in the future. She's in her twenties, has a Bachelor's degree in Ancient History and a Master's degree in Museum Studies. Although she is far more qualified and experienced than my husband (her boss), she earns far less. But this is the route people are expected to take if they have similar aspirations, partly because curatorial jobs are so few and far between.