Is there a language requirement specific to the caregiver pilots?

Yes, the caregiver pilots generally include a language ability requirement as part of the permanent residence eligibility criteria, assessed through a standardized third-party language test rather than through the job offer or work permit itself. This is separate from any language ability your employer might want for the job; it is IRCC's own criterion for the permanent residence application.

A point that often trips people up is assuming that being able to work comfortably in English or French day to day is the same as meeting IRCC's formal language requirement. It generally is not: IRCC relies on results from approved standardized tests, and those results typically need to be current at the time you apply, not simply reflective of your general ability. Test results can also expire, which matters if your qualifying work experience takes a while to accumulate before you are ready to apply for permanent residence.

Because the specific test requirements and how they are applied have been adjusted as these pilots have evolved, do not assume a test result you took some time ago will still be accepted, or that the requirement is unchanged from what you may have read previously. Confirm current language testing requirements with IRCC's published guidance, or check with an immigration lawyer before booking a test or submitting an application.