Yusuke Komori

Software Engineer

Career Summary

After working at an independent development company, I gained a broad range of experience at an IT consulting company, including business system development, technical support, and the training of younger engineers. In 2010, I authored Web Technology for Becoming a Professional. I joined LINE in 2019, where I developed backend systems for financial services and led the application platform team. Wanting to work closer to the business and be more directly involved in development and operations from the field, I joined CADDi in February 2022. I have since worked across the company on solving technical issues and on the design, development, and operation of various platforms, including in the Platform Group and the Authentication and Authorization Infrastructure Group. In 2024, I published the revised new edition of Web Technology for Becoming a Professional.

Why I Joined

I first heard about CADDi from a colleague who was job hunting around the same time as I was, and when I looked into the company I became interested after discovering that a senior from my university club was already working there. From a business perspective, I resonated with the scale and vision of the startup's mission and felt strong growth potential. I also liked the fact that CADDi was not confined to the world of computers and the internet, but was instead getting its hands dirty in real manufacturing sites to move the business forward. From a technical perspective, I saw that the company was using many technologies I had not worked with much before—such as Google Cloud, Kubernetes, Rust, TypeScript, and machine learning—so I felt it would broaden my range as an engineer. Although I am now at a relatively advanced age as a software engineer, I still strongly want to keep growing while staying hands-on, and I felt CADDi was the kind of environment where I could do that while tackling difficult and interesting problems every day.

Role at CADDi

I have been part of the Platform Group since joining CADDi. The group's work is broad, but some of the larger cross-functional efforts and forward-looking investments I have worked on include developing a company-wide authentication and authorization platform, supporting CADDi Drawer development especially in areas such as operations infrastructure, security, and non-functional improvements, conducting security checks across products, improving CI/CD and operational monitoring infrastructure, and supporting product teams through design consultation and problem solving. I have also overseen and coordinated article contributions for the Software Design series. Since autumn 2023, as one of the initial members of the newly formed CADDi Drawer ID Team, I have been deeply involved in the authentication and authorization domain, centered on designing, developing, and operating product authentication functions. What makes the work rewarding is that it spans both foundational elements with broad impact and product-facing elements that directly affect customers, all in an area that is both critical and highly challenging because it is tied to security.