Don't negotiate blind. Know what the market pays.
Salary data sources: Levels.fyi (best for tech), Glassdoor (broader), Blind, Hired's salary calculator.
Factors affecting pay:
- Location (remote roles often pay based on location)
- Company size and funding stage
- Your specific skills and experience
- Role seniority
For career changers: Expect entry-level to junior pay regardless of previous career. Your past salary is mostly irrelevant. Tech pays based on tech skills.
Know the range before negotiating. If they offer at the bottom, you have room.