Ask HN: Tips for the first employee joining a tech startup

Hi, I would be the first employee joining a funded,tech startup in US , providing a service which is a web-based,consumer facing. I don't have much experience under my belt- and I would to make sure the ramp-up process goes with as few hitches as possible. Any tips, any previous experiences of being the first few employees (as a developer) of a tech startup, would be really helpful.

Thanks a lot in advance, for your tips!! :-)