No, you cannot work in Spain on a Visit Visa. Spanish Visit visas are only for short trips, like tourism, seeing relatives, attending meetings, or getting medical care. You cannot work or study long-term using this type of visa. Doing so can result in penalties like fines, deportation, and being barred from getting visas in the future. If you want to work in Spain, you need to apply for a work visa or residence permit using the correct legal processes.