1. Round 1: HR call. Normal HR call.

2. Round 2: Video interview for an hour. Covered a wide range of questions, like basic Oops, volatile, SQL, and coding questions (Merge Sort). How would you debug a SQL server performance issue? What are Generics? How would you implement a Web API attribute to stop access of PUT and POST for a specific user?

3. Third Round: 2 hours of video interview.

1st hour: There is no defined pattern to take the interview. Asked to open Visual Studio on a corporate laptop. CLI to create a .net core project. Create a project and add some files. Implement an extension to sort objects by multiple members. Write a unit test for it. Asked questions on the resume. Very vague questions.

2nd hour: Asked questions on Microservices and deployment. Challenges faced. Grilling on .Net internals; low-level .net implementation knowledge. Nice to learn, though. Internals of Dictionary, hashing collision. Memory Management in CLR. Which method would you implement in a custom object when using it as a key in a Dictionary? Async Await internals. Algorithmic complexity discussion on List functions. Different ways to sort a list and dive into the internal implementation of these ways. No coding questions. More grilling on internals.

Asked questions about microservices and deployment challenges faced.

Grilling on .NET internals, specifically low-level .NET implementation knowledge. Nice to learn though.

Internals of Dictionary, hashing collisions, memory management in CLR. Which method will you implement in a custom object when using it as a key in Dictionary?

Async/await internals. Algorithmic complexity discussion on List functions. Different ways to sort a list and a dive into the internal implementation of these ways.

No coding questions. More grilling on internals.