As a developer for 8 years, I have mainly worked at startups and am currently working at a foreign global company. I usually participated in all technical tasks from service planning to development, distribution, and operation. I was mainly responsible for back-end development, and also served as a PM (Product Manager) when necessary. Because I have done a lot of work with a small number of people at a startup, I have the experience of successfully completing all positions from the project PM role to actual development alone when working on a project, so I am confident in project progress and execution.