Full Stack Engineer

Create a Web API in .NET Core to manage a simple Employee entity (Id, Name, Department, Salary). Implement endpoints to create, read, update, and delete employees using EF Core and a SQL Server database.

Implement a global exception handler in .NET Core that returns a proper JSON error response with a status code and message whenever an unhandled exception occurs.

Build an authentication flow using JWT, where a user submits a username and password, receives a JWT token, and accesses a protected API endpoint with that token.

Create two versions of an API: version 1 returns employee data without salary, while version 2 returns employee data with salary. Implement versioning using either the URL or header strategy.

• Explain Dependency Injection (DI) in .NET Core.
• How does the built-in DI container work?
• What are the differences between AddSingleton, AddScoped, and AddTransient?

• How do you manage configuration in .NET Core applications?
• How do you use appsettings.json, environment variables, and IConfiguration?

• What is middleware in .NET Core?
• Can you explain the request pipeline and how to implement custom middleware?

• Explain model binding in .NET Core Web API. (Learn)
• How does the framework map HTTP request data to method parameters?

• What is Angular’s component-based architecture? (Learn)
• How do you structure components and modules in a scalable way?

• How do you handle forms in Angular? (Learn)
• What is the difference between template-driven and reactive forms? (Learn)
• When would you use one over the other?

• How do you deploy a .NET Core API and an Angular app in production?
• What steps do you follow (CI/CD pipelines, server setup, etc.)?

• How do you manage version control in your projects? (Learn)
• How do you structure Git branches for features, hotfixes, and releases?

• Tell me about your most significant technical contribution in your last project. What impact did it have on the business?
• How do you ensure the code you write is maintainable and scalable over time?
• How do you stay updated with emerging technologies? How do you decide whether to adopt a new technology in a project?
• Talk about how poor quality can lead to bugs, downtime, customer dissatisfaction, loss of revenue, and higher maintenance costs.
• What happens under the hood when you send a request to an ASP.NET Core Web API endpoint? Can you walk me through the request pipeline in detail?
• How do you handle performance bottlenecks in an API you built? What steps do you take to profile and optimize the API?
• What is a memory leak in Angular applications, and how do you detect and prevent them?
• Explain how you would design an audit logging system that tracks every data modification in your API (who changed what and when), without degrading performance.
• What are the pros and cons of monolithic vs. microservices architecture?(Learn) In what situation would you NOT choose microservices even if everyone else says so?
• How do you measure the ROI of the features you develop? How do you prioritize features that don’t have immediate business value but improve system stability?