20 Top .NET Developer Interview Questions to Expect

Top 20 .NET Developer Interview Questions to Expect

Planning for the exact .NET developer interview questions you will be asked, is impossible.

The experience will depend on the interviewer’s style of questioning and what he or she feels is the most important information to learn about you. Questions will also be based on if you are an entry-level, mid-level, senior developer, etc.

Some will stick to technical queries; trying to glean a sense of your knowledge level.

Others will want to know about your personality, how you will contribute to their team, and how you handle problems when they arise.

Most likely, you can expect a little bit of everything!

The following are some top .NET developer interview questions you may want to consider, before walking into an interview. You may know the answers to many of them, but it’s always wise to brush up before an interview.

If you do find yourself faced with a question you’re not sure of, don’t be afraid to admit it.

Let the interviewer know that it is something you would have to look up, and will follow up with the answer to.

A potential employer will appreciate knowing that you are honest about your abilities, and know when you need to turn to your resources. Making up a completely wrong answer could lead them to think you are misinformed about other details as well.


Getting-to-know-you .NET Developer interview questions:

1.    What .NET frameworks do you have experience working with?
2.    Tell me about a time you encountered a problem with a project and how you overcame it.
3.    What role did you play in your last project?
4.    Describe your strengths and weaknesses as a .NET developer.
5.    What is one positive thing your current/past employer would say about you?


Questions for all developers who write code:

1.    What is the difference between a thread and a process?
2.    Describe the difference between strong-typing and weak-typing? Which is preferred and why?
3.    What is GAC?
4.    How does Windows Service’s lifecycle differ from EXE?
5.    How is PID useful when troubleshooting a system?


Mid-level .NET developer questions:

1.    What is reflection?
2.    How is an interface different from a class?
3.    Can DateTimes be null?
4.    What is the difference between out-of-proc and in-proc?
5.    Describe interface-orientated, object-orientated, and aspect-orientated programming.


Senior developer questions:

1.    Where must PDBs be located for debugging to work?
2.    Describe the difference between Trace.Write and Debug.Write?
3.    What is boxing?
4.    What permissions does a process using XmlSerializer require?
5.    What is the purpose of Port 135?


Questions you should ask:

Remember, a new job impacts more than just your paycheck.

With so much of our week spent in the workplace, it is important for most people that they like their job, too. By now you’ve probably already ascertained that being a .NET developer is something you enjoy, but you will still need to determine if the organization you are interviewing with has the right environment for you and your “work style.” Below are a few questions you might consider asking during the interview:

•    What do you feel is the most important thing about your company/product?
This question can give you insight into the organization’s values, ethics, culture, and/or priorities, depending on the answer the interviewer provides.  

•    How is the team structured?
Even if there is a tech mess waiting for you upon arrival, you can still be successful if you have a team that is well structured and can work together well.

•    How versatile are you looking for the person who accepts this position to become?
As a .NET developer, you should always be striving to grow and develop your skills. If a company wants you to be limited in your role, it may not be the right place for you.

You might also ask about working conditions, schedules, resources, and more technical questions that you feel are important for your job performance.
•    Do programmers have a quiet working environment?
•    What is your definition of “urgent” in relation to projects?
•    On a scale of 1 to 10 (1 being Stone Age and 10 being the most advanced money can buy), what type of tools do you work with?
•    What is your protocol for fixing bugs?

Looking to interview with more companies? Contact an experienced recruiter at MAS Technology Staffing, today.


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