First round: initial interview with HR, followed by a 1-hour separate technical interview with the hiring manager and leads. There was one easy LeetCode question asked to solve verbally. The rest of the questions were general Angular and .NET framework questions, as I have detailed below.

Angular

• Give some directives
• Give some decorators
• Explain some data binding and the syntax for it
• Explain the benefit of dependency injection
• How do you implement dependency injection?
• What are some lifecycle methods?
  • ngOnInit
• Automated unit testing

.NET

• If given an array of integers, explain an algorithm that would return the two integers that sum to 100.
• How would you do it without sorting the array?
• How do you implement inheritance?
• Can you inherit multiple classes?
• LINQ:
  • IEnumerable vs IQueryable
  • What is the syntax for a LINQ query?
  • What is the difference between .Single and .SingleOrDefault?
• How do you use dependency injection?
• What are the benefits of dependency injection?
• Microservices architecture patterns
• Automated unit testing with xUnit
• Authorization in .NET Core

SQL

• What are indexes?
• What are the different types of indexes?
• How many non-clustered indexes can you have?
• How many clustered indexes can a table have?
• Let's say you have an employee table and an expenses table that includes bonus, write me a query that will return all the employees with an average bonus of 20k the past 3 years (should use a HAVING clause).