The Really Important Job Interview Questions Engineers Should Ask (But Don't)

James Hawkins: Since we started PostHog, our team has interviewed 725 people. What's one thing I've taken from this? It's normal for candidates not to ask harder questions about our company, so they usually miss out on a chance to (i) de-risk our company's performance and (ii) to increase the chances they'll like working here. Does the company have product-market fit? This is the single most important thing a company can do to survive and grow. "Do you ever question if you have product-market fit?" "When did you reach product-market fit? How did you know?""What do you need to do to get to product-market fit?""What's your revenue? What was it a year ago?""How many daily active users do you have?" It's ok if these answers show you the founder doesn't have product market fit. In this case, figure out if they will get to a yes. Unless you want to join a sinking ship, of course! Early stage founders are (or should be) super-mega-extra-desperately keen to have product-market fit -- it's all that really matters. The ones that will succeed are those that are honest about this (or those that have it already) and are prioritizing it. Many will think or say (intentionally or through self-delusion) that they have it when they don't. Low user or revenue numbers and vague answers to the example questions above are a sign that it isn't there. Product-market fit is very obvious.

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