张长春 is a 产品架构师，产品总监，资深产品经历 at Baidu Inc.. Colleagues describe them as "Aphel is one of the best product managers I have ever worked with due to his excellent skills and vast experience in product management. As a senior product manager, Aphel has been working for more than 12 years, and I was lucky working in three same companies as him during the past 8 years and I learned so much experience of product management and designing from him when we worked together. I found he could always focus on creating new ideas and good features, being good at communicaing with people, sharing ideas with them and helping them developing the product in the right way." and "长春是个热情而纯朴的人，喜欢钻研业务，在分析与设计二方面都善长。"