What is the GIN index used for in PostgreSQL?
Senior
185
Java
14849
265
In which organization would you like to realize your professional activity?
Intern — Junior
185
How to protect a controller by roles in Spring Security?
Senior
185
What is the difference between checked and unchecked exceptions? When should RuntimeException be used?
Senior
185
Have you ever optimized JVM parameters and Garbage Collector?
Senior
185
Did you include not only the model itself but also metadata in the DLT topic?
Senior
185
Write a method that returns the N-th element of the Fibonacci sequence.
Senior
185
What problems can using HashMap lead to? Can HashMap cause memory leaks?
Middle
185
What NoSQL databases have you worked with? What is a NoSQL database?
Middle
185
Push vs Pull approach in message brokers (ActiveMQ vs Kafka). Pros and cons of each.
185
Tell about reducing database load by 30% — what was done?
Senior
185
Are there already offers or final stages in other companies?
Middle+
185
Why is Dependency Injection needed?
Intern
185
What books on software design and development have you read in recent years?
185
Have you had leadership experience?
Senior
185
Have you had any experience working with fintech domains — payments, finance, billing, integration?
Senior
185
What is the main problem of this implementation - Index may not be mandatory - Incorrect index type used to achieve the desired goals. - There is a composite index - The table is not normalized - No use of transactions
Senior
184
How would you implement the propagation of business headers (x-session-id, x-client-id) across the microservices system via REST and Kafka?
Senior
184
How did you approach studying AI agents? How to get started with this topic?
Senior
184
What to do if a message from Kafka cannot be read or processed (corrupted message)?
Middle
184