How do I implement working time, overtime, and availability before contract acceptance in practice?

Germany should represent working time model, core hours, shift/night work proportion, and overtime logic as separate fields. Job listing: display weekly hours and overtime rules separately. Portal filter: do not mix full-time, part-time, shift, and hybrid categories. Caution: not every operational flexibility can be fully standardised. (Evidence: Destatis Labour Market, BA Beschaeftigung Statistik)