Vague phrases ("I'm patient", "I like helping") say little about you, whether in your CV or in any conversation with recruiters. A real situation you resolved, told briefly, says more.
Use Situation, Action, Result: the context, what you personally did (not the team) and the concrete effect. Prepare three stories: a difficult customer, a mistake you fixed and an improvement you proposed.
Checklist
- Situation: who the customer was and what went wrong.
- Action: the steps you took and the decisions you made.
- Result: time saved, customer retained, process changed.
- Rehearse out loud, in German too and, if the role asks for English, in English.