[serial_dev]

My recommendation is get competing offers that you'd consider taking (batna, as others mentioned) to figure out what you are worth.

You'll never actually know how much you are worth until there are offers on your desk. Actually having offers is the ultimate negotiation card that makes sure you are realistic (neither extremely delusional, nor underselling).

Of course, I recommend you still negotiate politely and respectfully (e.g I wouldn't actually say that I have 3 competing offers).

Once I asked my manager about the salary raise schedule, he said company wide is once a year (and that was like 8 months away for me), asked him once again in a week to confirm, next Monday I handed in my resignation.