https://www.epo.org/en/service-support/faq/learning/european-qualifying-examination/registration-rule-28-ipree/i-am-epo

I am an EPO examiner – do I have to register?

Yes. All candidates have to register (see “Who needs to register?”).
Patent examiners at the EPO must submit a certificate available on the EPO intranet.

EPO examiners cannot be epi student members.