Hi Christopher Esclapez,
Your employer will continue to deduct UK tax until advised otherwise.
If you will not be resident in the UK, but still working for a UK employer and will not visit the UK and work in the UK, you will need complete form P85 to advise that you are leaving the UK, but will still be employed and paid by a UK employer. You can submit the form online, using your government gateway user id and password to log in or complete the form online, print it, sign it and post it to:
HM Revenue and Customs
Get your Income Tax right if you're leaving the UK
If there will be periods that you will come to the UK and work for this employer in the UK, then your employer will need to seek a direction to operate PAYE, by completing form S690, which can be found here:
Apply for a direction to operate PAYE on an employee's earnings
On those occasions that you are working in the UK, you are liable to be taxed on that portion of your income, in the UK.