Kann ich auch eine Berufslehre als Telematiker machen?

Can I also do an apprenticeship as a telematics technician?

Yes, but beware: the profession was renamed in 2020: The job title is no longer "EFZ telematics technician", but since then "EFZ building IT technician". The apprenticeship lasts four years and concludes with the Federal Certificate of Competence (EFZ). You will attend vocational school one to two days a week and complete your practical training in an electrical installation, telecommunications, multimedia or building technology company.