الحصول على تأشيرة جديدة من صاحب عمل آخر دون إلغاء التأشيرة القديمة

Since the visa has already expired, there is no need to cancel the visa. However, your friend should go to his ex-employer and tell them that he does not wish to renew the visa and that they should make him sign the necessary forms if required.

He has 30 days from expiry to exit the country or apply for a new visa through the new employer. He can get a new visa because his earlier visa has expired.

He needs to go to the immigration and check that the expiry has been recorded in the system to avoid any problems at the time of applying for the new visa.