I'm dying for my coworker

Hi! Everyone I rarely post but today I decided to come ask for help! There is this guy at work I'm crazy for! He is a really nice person, but the thing is he is really older than me I'm 24 and he is 41. I think he likes me but I'm not sure! Should i tell him that I like him or not? I've been single two years now and I don't know what to do!