Golang

What is the difference between methods with value receiver and pointer receiver in Go, and when to choose each?

Tell about a case where you reduced the search time for transaction history from 2–5 seconds to 150 milliseconds using data aggregation in Elasticsearch: what was the initial data and architecture, what exactly was changed, and what was the result?

How is PostgreSQL generally structured?

Which indexes have you used in practice and why?

What are the types of synchronous and asynchronous inter-service interactions, what tools are used for them, and what have you used in practice?

How did you communicate requirements for deploying a service in Kubernetes to the DevOps team: in what format did you document the service's operation and how was the interaction built?