When travelling to Scotland check that your country of origin is not show on the attached link https://www.gov.scot/publications/coronavirus-covid-19-public-health-checks-at-borders/pages/exemptions/
See the information contained in this link below , tab” seasonal workers”
Quarantine in hotels is not required if your country of origin is not on the list.
At the airport they will expect you to have completed ‘passenger form’ https://www.gov.uk/provide-journey-contact-details-before-travel-uk
A negative COVID test will have to be taken 72 hours prior to travel, it must also be presented at the airport.
Please see links below:
Self-referral Portal- book a Covid-19 test
From Friday 26 February 2021, essential workers who are self-isolating either because they or members of their household have coronavirus symptoms should book tests directly via the self-referral portal at https://www.gov.uk/get-coronavirus-test.