If your employer does not pay you, there is no need to drag out the situation "to see if it gets fixed." Salary is a legal obligation according to the Swiss Code of Obligations (CO), and what works here is to do it in writing and with deadlines. First step: send a formal notice (mail or letter) indicating the amount due and the period worked, with a period of 5 to 10 days. If there is no reaction, a second, firmer demand (Mahnung) is sent, giving 7 days, maximum 10, making it clear that you will take action if they do not pay.
If after that second period there is no payment, you do not continue waiting or negotiating indefinitely. You go directly to the collection procedure at the Debt Enforcement Office (Betreibungsamt). You don't need a lawyer to get started and it is the standard channel in Switzerland. If the employer objects, then the labor court process is already entered into to raise that opposition.
Key fact that many discover late: the right to claim salary expires after 5 years (art. 128 CO). But that is not an invitation to wait, on the contrary. The sooner you act, the more real options you have to collect. The approach here is simple: writing, short term and action. If they don't pay, it's usually not because of inattention.