What is your experience with databases? Have you worked with non-relational databases?

I have experience working with relational databases (PostgreSQL, MySQL), including schema design, query optimization, and migrations.

I have also worked with non-relational databases such as MongoDB and Redis.

• Used MongoDB for storing documents with flexible structures, which is convenient for rapidly changing data.
• Used Redis as an in-memory store for caching and implementing queues.

I understand the nuances of choosing between relational and non-relational databases depending on data requirements, consistency, and scalability.