Awan-Legal : Hi
Awan-Legal : The post study worker route will not count towards your length of period in the UK when applying for indefinite leave to remain unfortunately. It was brought in as a transitional visa for students to work for two years after their degree etc or until they can get skilled work under tier 2.
Awan-Legal : There is no time limit on the length of time you can remain outside the UK and practically the job offer may even help you find skilled work under tier 2 in the future, hopefully. If you have been out of the UK for some time though, a border force officer might want to check that you are still working or looking for work in the UK (in your case) and you should be ready to provide evidence if possible that this is the case.
Awan-Legal : This can be through job applications in the UK or making an appointment for an ni number for when you get back.
Awan-Legal : You can re-enter at any time while your visa is still valid.
Awan-Legal : The Ukba website confirms:
Awan-Legal : If your application is successful, you will be granted two years leave to remain in the UK during which time you will be free to seek employment without having a licenced sponsor.You will be able to apply to switch from Tier 1 (Post Study Work) to Tier 1 General, Investor or Entrepreneur, Tier 2, or Tier 4. However please note, time spent in the UK in the Tier 1 (Post Study Work) category does not count towards the qualifying period for Indefinite Leave to Remain.Tier 1 (Post Study Work) - IGS - Transitional Arrangement
Awan-Legal : I hope that helps. Please click accept on my answer and let me know if you have any further questions.