The Mutable signs are at the end of each of the four seasons of the year. Gemini is at the end of spring, Virgo the end of summer, Sagittarius the end of fall, and Pisces the end of winter. You can think of these signs as representations of the end of the cycle. I call these signs the “Tech Signs.” The characteristics of people born under this group apply nicely to technical job positions.
Mutable signs are not very good at attracting other people to them. People generally do not like them on first impression. This is typically because they tend to be more introverted and are not very good at small talk. People born under a Mutable sign will only talk to a few people at a party because they are more interested in deep conversations than small talk. They tend to have few friends, but they have close relationships with them. Mutable signs tend to be slow and not very confident, but are accurate and pay attention to detail. When they learn something, they learn it very thoroughly. They enjoy debating things, but hate to be wrong.
Mutable signs may be best suited for technical jobs, but they can fit into other positions as well. You just need to consider how they fit into those positions. As a manager, they would drive their subordinates towards perfection. They would be critical, blunt, and brutally honest in communications with their subordinates. As a salesperson, they will not be the greatest at working a booth at a trade show. This is because they will only talk to a few people during the show. Their sales would have to rely on developing a strong long term relationship. They would do best when leads are passed to them and they just need to go through the steps of closing the deal.