I have experience working at a small "start-up" (3-5 people), medium (50-100) and large (10k+). The small company gave me the confidence and experience to dig

I have experience working at a small "start-up" (3-5 people), medium (50-100) and large (10k+). The small company gave me the confidence and experience to dig myself out of most situations and turned me into a "jack of all trades, master of none" (much like you describe yourself). The medium company was a consulting firm so I got to work with other companies of varying sizes (including government organizations). Having worked multiple roles for a number of organizations, I gained the breadth but not depth. I was exposed to internal policies and workings of these organizations without having to actually switch jobs that many times. When I joined the large company I brought with me the benefit and knowledge of having worked with multiple orgs, which is something that was lacking at the time for the teams I worked with. Having worked here a few years, I've gained invaluable knowledge I wouldn't have gotten at small firms. Being a large global organization I get to work with vastly different cultures and experiences, all of which is an overall benefit to me. Having a variety of experience will make you well rounded. You will have positive and negative takeaways which you can apply in your future roles. And who knows, you may actually enjoy the large corporate life. Is the grass greener at big companies? It entirely depends on what you are looking for and your personality. Is it valuable? Absolutely. Anyone who says otherwise is closing themselves off to invaluable experience.