System design interview tip
One pro tip for acing a system design interview is to read the engineering blog of the company you are interviewing with. You can get a good sense of what technology they use, why the technology was chosen over others, and learn what issues are important to engineers.
For example, here are 4 blog posts Twitter Engineering recommends:
1. The Infrastructure Behind Twitter: Scale
2. Discovery and Consumption of Analytics Data at Twitter
3. The what and why of product experimentation at Twitter
4. Twitter experimentation: technical overview