Algorithms & Data Structures are critical to Backend Engineering however it really depends on what kind of application and infrastructure you are building. In this video I want to go through the following 1 Backend Engineers are two types - Integrating Existing Backend - Core Backend Example Building a CRUD API? Online Cinema system, URL shortener, You will pick up a database and write your logic Building a social network? * are you gonna be integrator use a ready made graph database? * Are you gonna use a off the shelf database and write your logic in the application? * Are you gonna build your own graph database platform? * Any of these scenarios you will run into problems slow performance and you need to understand why Building a monitoring system? are you gonna integrate an existing database ? or build your own? 2. Be Pragmatic (Algorithms are not always the solution) * Most performance issues are not algorithm problems, they are just bad bugs. and misuse .. paging We are a sorted 100 items takes 1 minute to sort and return.. merge sort or heap or quick sort won’t help you 3. Always keep learning to be open to learn new Algorithms