A few years ago, I worked at a small startup doing everything from product management, UX/UI, and knowledge base maintenance to quality control and analytics. The company I currently work for is much larger (although still tiny compared to corporations) and we have dedicated people for analytics, design, customer support, and quality control, so I focus entirely on product management work, learn new skills, make mistakes and try to be effective in providing value to clients, find resources and prioritize problems.