It depends on the country and the company. For example, here in India:
- if you're negotiating with a US tech giant (FAANG, etc) from a position of strength (more than one offer, very good interview and past credentials), you can get away with almost anything, since they want great developers, and they don't mind paying above market. If you barely passed the interview, or you don't have a strong position, they'll just say take the offer or we won't go ahead.
- If you're negotiating with US-based startups or EU companies, then they might not want / be able to go very far with respect to salary (equity is doubly risky for the candidate if they aren't in the US), you can negotiate for great health insurance, more time off, fewer working hours, other benefits.
- If you're negotiating with Indian companies, they'll just hop on to the next candidate who passed the interview and is more desperate than you are. Most Indian companies tend to believe neither in fair wage, nor work life balance, so they won't negotiate properly on either. An employee is not just a replaceable cog, she cannot be allowed to exercise any sort of negotiation lest their current employees start getting ideas.
- if you're negotiating with a US tech giant (FAANG, etc) from a position of strength (more than one offer, very good interview and past credentials), you can get away with almost anything, since they want great developers, and they don't mind paying above market. If you barely passed the interview, or you don't have a strong position, they'll just say take the offer or we won't go ahead.
- If you're negotiating with US-based startups or EU companies, then they might not want / be able to go very far with respect to salary (equity is doubly risky for the candidate if they aren't in the US), you can negotiate for great health insurance, more time off, fewer working hours, other benefits.
- If you're negotiating with Indian companies, they'll just hop on to the next candidate who passed the interview and is more desperate than you are. Most Indian companies tend to believe neither in fair wage, nor work life balance, so they won't negotiate properly on either. An employee is not just a replaceable cog, she cannot be allowed to exercise any sort of negotiation lest their current employees start getting ideas.