I have been asked to do the Birkman Questionnaire as part of a job application, but I already have done Birkman® Express.

Unless you did the Birkman questionnaire while a teenager, it is far better to use your existing Birkman profile. Give your prospective employer your unique Birkman code (usually in the form Gxxxxx where x is any digit or letter) and they can then arrange for Birkman to upgrade your profile to the full professional version. You will be asked to sign a release form, but there is no need to retake the Questionnaire unless the employer insists on it. (Ask them to contact Jon Mason at Elaura for advice if they are unsure).