Collaborated with the data analytics team to optimize the ad delivery strategy through A/B testing, and discovered some interesting data patterns, such as certain ads being particularly effective during specific time periods.

Started to be more involved in cross-departmental collaboration, such as discussing with the marketing team on how to improve ad revenue through technical means.-Started to lead a small team, responsible for the performance optimization of the ad platform, such as reducing memory usage and improving ad loading speed. -Led a new project to develop a set of automated testing tools for ad material to help the design team quickly verify ad compatibility and performance. -Collaborated with the data analytics team to optimize the ad delivery strategy through A/B testing, and discovered some interesting data patterns, such as certain ads being particularly effective during specific time periods. -Started to be more involved in cross-departmental collaboration, such as discussing with the marketing team on how to improve ad revenue through technical means.

Participated in the improvement of ad delivery algorithms, optimized ad display logic by analyzing user behavior data, and improved ad click-through rate (CTR).

Discussed new feature requirements with product managers and designers, such as how to make ads fit more naturally into the app without affecting user experience.

Solved a lot of online problems, such as ads loading failures or crashes, and often got up in the middle of the night to fix urgent bugs, but every time I solved the problem, I felt quite a sense of accomplishment.