关于怎么prepare

建议prepare得花4个月的时间

有事没事都多去看看人家大佬们是怎么解决问题的，然后思考一下人家公司遇到什么问题

Engineering at Meta, Meta Research, AWS Architecture Blog, Amazon Science Blog, Netflix TechBlog, Google Research, Engineering at Quora, Uber Engineering Blog, Databricks Blog, Pinterest Engineering, BlackRock Engineering, Lyft Engineering, Salesforce Engineering.

有事没事也要思考一下身边常见的应用是怎么工作的。

有时间还得思考一下不同的component用上去会有什么效果，譬如firebase vs sql

再有时间试试build个side project，重现一下人家的系统，看你会遇到什么问题

requirement有两种，functional和non-functional

注意思考一下问题：

1. data size，growth，keep多久，regulatory compliance

2. data怎么被consume的，by user or downstream system

3. data consistency，eventually consistent ok or not