[People on the 43rd Floor of Yeouido] Ask the CTO Anything!

Last October, Banksalad brought on Kim Mun-gyu, who previously worked at Google and Amazon, as CTO. Drawing on his experience designing Android OS testing automation infrastructure at Google, he is currently focused on building infrastructure optimized for Banksalad's MyData business model and strengthening the IT organization's competitiveness.

Banksalad's tech organization is divided into Product Engineering, which solves user problems, and Infrastructure Engineering, which enhances system stability and efficiency. On the product side in particular, the team collaborates with UX designers, PMs, and data analysts to provide data-driven health and asset management services.

Experimentation Is a Tool, Not a Process

CTO Kim cited Netflix's principle of 'let's not make rules,' emphasizing that due to the rapid pace of change in technology and lifestyle, there is no fixed Best Practice. Experiments and user testing are used as tools to support decision-making rather than as a highly reliable process.

• Qualitative Validation: After a UX designer review, the design is presented to actual users to identify issues.
• Quantitative Analysis: Metrics are used to check the positive or negative effects of a new design.
• Data Utilization: The team aims for 'Data-informed Decision' that considers context, rather than 'Data-driven Decision.'

The actual application rate of experimental improvements is an area that is difficult to measure quantitatively, and is flexibly determined based on the judgment of the person in charge. Through this experimentation culture, Banksalad aims to create impact in the MyData market and, by attracting more talent, form a virtuous cycle in its development culture.