Well done in getting the job, I would get a years experience on your CV and then get a job closer to home 🙂
Check who your employer would be (i.e. the name on the contract) just in case you are working for Fugro UAE but being employed through another company – this is what will determine where you pay tax. If it is working for Fugro UAE then (im no expert) I dont think you will be paying UK tax (but you may have to pay their tax).
Also note that you wouldn’t be getting any National Insurance paid for in the Uk either.
Do some research online about the company before the interview so that you can make up a list of questions such as these to ask them. Are you paid door to door (i.e. paid for travelling), how often do you get back home, that they pay the flights, what is the accommodation you will be staying in onshore, do you get an allowance while there for food etc.
I’m sure some others on here who work out there will be able to advise better.
PS check the exact name of the company, I think the Fugro based in UAE is called Fugro Middle East (FME). There are a lot of companies in the Fugro group