I third this recommendation. I've worked on a ton of data intensive applications on all kinds of stacks over the years, and this book gives you lessons learned as well as a very valuable historical perspective on relational databases that is missing from a lot of the popular literature today.
Reading it pushed me from thinking in terms of what I had worked with to building systems based on what was needed.
I cannot recommend it highly enough, for pretty much anyone in {frontend, backend, data science, etc}.