Zum "educator" hat die EU-Terminologie-Datenbank :

In BE sind das 'nursery school teachers' (außer Er befindet sich in einer Ausbildung als Erzieher (für Kinder im Kindergartenalter) bedeutet NICHT 'Er lernt Kindergärtner', wie man es früher ausgedrück hätte.)

Vielen Dank für eure Antworten!

Und was ist mit "apprenticeship"? Stimmt das, und versteht das irgend jemand in Nordirland? Das kommt mir sehr merkwürdig vor für einen Nichthandwerker...?

https://nationalcareersservice.direct.gov.uk/...
Nursery worker
Nursery assistant, pre-school assistant, playgroup assistant, nanny, childcare worker

https://nationalcareersservice.direct.gov.uk/...
Early years teachers, also known as nursery teachers, are specialists in early childhood development.

https://www.pacey.org.uk/working-in-childcare...
You might start out as a student or nursery assistant whilst you work towards your level 2 qualification. Some nurseries may offer the opportunity to complete an apprenticeship and this can be a great first step.

See above for the UK government pages on careers in Early Years (= EYFS = Early Years Foundation Stage) childcare (0-5).

Unfortunately in the UK we use 'nursery' to mean two different things in a childcare context:

1 a private 'day nursery', usually for children whose parents work, and
2 a state-run 'nursery school' for children aged 3-4.

Nursery schools tend to be attached to a primary school and follow the routine of a normal school: September start, school hours, school holidays, free, possibly even uniform and school lunches. 'Nursery' (age 3-4) in a school context is the class before 'Reception' (age 4-5), the first compulsory class in the UK school system.

All that is to say that a 'nursery assistant' (who works in a private day nursery) is NOT a 'nursery school teacher' (or 'Early Years teacher'), who may be a qualified primary school teacher currently working in a nursery class in a school setting, or a qualified Early Years teacher with a degree or graduate program in Early Years teaching.

It looks like the official term for someone who works in a day nursery is a 'nursery assistant'. (I never knew that until I just looked it up; I always privately called my daughter's nursery staff 'nursery nurses', which sounded old fashioned, or 'nursery workers'.)

I would say something like

I am in my first/second etc year of an apprenticeship to qualify as a nursery assistant

I am studying towards an Early Years childcare qualification on an apprenticeship scheme

etc