There's plenty of great advice here. I'd add one more signal to evaluate: How tight is their hiring process? Hiring is one of the most important tasks of a st

There's plenty of great advice here. I'd add one more signal to evaluate: How tight is their hiring process? Hiring is one of the most important tasks of a startup. As the business grows, it identifies new things it wants to get done and eventually that means adding people. Watch your interactions with a prospective employer carefully. Are they swift in communications to schedule your interviews? Do they seem prepared when you show up to talk? Is their follow up clear and prompt after your first meeting? A startup with their shit together should be able to go from phone screen to signed offer letter inside of 7 - 10 days. Any longer than that suggests sloppy management, poor communications skills or lack of focus. Or worst of all: lack of clarity/urgency around the initiative they're hiring you for. If their hiring process is sloppy, it's a safe bet you're in for a bad time.