With the advent of new and charming frameworks like Spring Boot and Hibernate, there has been an observed shift in the definition of “Software Engineering” and “skills” of a Software Engineer. Many of the resume that I come across have one or more of the following “skills” highlighted: Spring MVC …

Recently, I came across a problem where I had to design an image recommendation system i.e. I had a dataset with 1 million user interaction points. …

Normally, enabling a paginated query on a RDBMS is as simple as adding “limit” and “offset” parameters to any “select” query. However, recently I came across a situation where a service was to get data from multiple databases (hosted on separate servers) and expose the same to the client in…

Ever wondered how GitHub easily and accurately determines what changes have been made to each file, or how distributed database systems like Cassandra ensure proper replication of data across replicas? The short answer to the above question is — they use Merkle trees. …

Imagine you go to a party and you want toknow how many people are at that party, how would you determine that? One way is to use brute force to manually and sequentially count each individual and get the total. But obviously, you don’t want to do that in a…

Recently, I came across a problem to operate on a large matrix stored in the form of csv. I needed to split this large csv file into smaller files so that each of those smaller files can fit into main memory for any kind of processing. …