From graduating in 2014 to the present, I've spent some time as a full-stack developer. However, later on, my company mostly transitioned to separating front-end and back-end development, so I primarily focused on back-end development. Occasionally, I also handle maintenance tasks and manage outsourced personnel. In my day-to-day work, I mainly use Java-related technologies, and I also have some knowledge of Python. In terms of business, I've worked in various domains such as e-commerce, IoT, and finance. I've also developed applications for PC, apps, and mini-programs. Outside of work, I enjoy exercising and occasionally self-study new topics, as well as building services that interest me.