There are many different kinds of jobs with horses, but no job is alike. Some people are jockeys and need a jockey license to do what they do. Jockey Jockey's ride racehorses on the track for various owners. Some Breeding stables have thirty and more mares that are having babies. A horse trainer trains horses and teaches People to ride.
Some trainers teach mainly dressage, others hunter jumpers etc.
The judges watch from inside or outside the arena to determine the riders' scores in the competitions Course Designer designs courses for competitions. Designing courses is like decorating - it is an art. A farrier A farrier shoes horses. Vet Vets give horses vaccinations, give them deworming preparations, and they treat horses also in cases of accidents and diseases. Boarding stables owners of Boarding stables make money by taking in horses of People that don't have their own stable but own a horse, or offer shelter for horse transports on their way through.