Java

Have you worked with Spring Data JPA?

Tell me about the HashMap data structure.

What is your favorite architecture? Tell us about DDD.

How are CI/CD pipelines described and operated in GitLab?

How to specify a particular Garbage Collector in JVM (manually or by default)?

What is EXPLAIN ANALYZE, what is it used for, and how does it work?

How to connect services from two different docker-compose files?

How does the Circuit Breaker pattern work?

What are the main issues when working with JPA (N+1, etc.) and how to get rid of them?

Tell me about the Inversion of Control (IoC) pattern.

How does Postgres implement ACID principles by default?

What is the purpose of the ASK redirect in Redis Cluster?

What conditions are needed to convert a list into a tree in HashMap?

Can you tell about the OSI model?

How to implement distributed log tracing across multiple services?

What are the advantages of virtual threads and how do they work?

Tell me about ways to create beans in Spring

What are the advantages of ArrayList vs LinkedList in terms of memory and performance?

How did you control connections to TimescaleDB and Postgres simultaneously to avoid crashing the database?

Have you worked with non-relational databases (Redis, Cassandra)?