Do I need to send diplomas with my application?Yes, copies of your training certificates should be enclosed (your latest vocational training, additional qualifications, labour certification or at least confirmation of periods of work). All certificates should be translated into German, except when you are applying for a job in an international company.
Should I supply references, letters of recommendation or proof of good conduct?If requested, you should be able to supply references from former employers, translated into German, to confirm your qualifications and experience.
A copy of your latest and most advanced diploma should be handed to the company at the latest during the interview. Letters of recommendation are only used when you apply for an academic post. If proof of good conduct is required, this will probably be mentioned in the job ad.