Most employer-sponsored work in the United Kingdom sits on the Skilled Worker visa. A sister route, the Health and Care Worker visa, uses the same sponsorship system for eligible health and care jobs, with different fees and conditions. Both require a UK employer that holds a sponsor licence.
What the employer has to have
A sponsor licence is permission for the organisation, not for a single hire. An employer without one cannot assign the Certificate of Sponsorship your application needs. Licences can be suspended. A listing from a licensed sponsor is a starting point, not a promise that the licence will still be clean on the day they assign the certificate.
The job itself has to be eligible. The Home Office publishes the occupations and the going rates. The offer has to meet the salary rule that applies to that occupation, which is not always the headline general threshold. A careful employer checks the going rate before they advertise.
What you should see in the listing
The route by name. The salary in pounds. Who pays the Certificate of Sponsorship cost and the Immigration Health Surcharge, where it is due. Whether the role is on the Health and Care route, because that changes the fees and, for some care roles, the rules for dependants. The place of work, because a certificate is tied to a job, and a later move can need a new one.
Registration sits beside the visa for many of these jobs. A nurse needs the NMC. The visa does not register you, and the register does not grant the visa. A good hospital listing says which of the two is already underway.
After you arrive
The visa has an end date and conditions. Supplementary work, a second job, and a change of employer are all regulated. Absence from the job can be reported to the Home Office. Read the conditions on the decision, not only the handbook a recruiter sends.
Settlement, where it exists for the route, has its own residence and salary rules and is a separate application years later. Treat a five-year story as a plan, not as a term of the visa you hold today.
This is a map, not advice. Thresholds, occupation lists, and dependant rules have changed more than once. Use the current pages on GOV.UK, and take advice if your case is not a straightforward new hire.