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How to Hire C# Developer

Vetting C# Developers: Job Description & Interview Questions

C# is a general-purpose programming software that has many applications, so it’s easy to understand why it would be important to incorporate it into online applications.

As a business owner, I’ve come to understand that having access to use tools like this is essential, but not easy.

To save time and money (and mental anguish), use this hiring guide to find a C# programmer that can use the software to make the most of it.

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What is C# Used For?

C# (pronounced c-sharp) is a multi-purpose programming language that evolved out of older languages such as C and C++. Therefore, it has some similar uses, especially when developing programs to run on Windows through the .NET initiative. Here are some common uses of the C# programming language.

Windows Applications

Microsoft created C# specifically for their Microsoft products such as Windows. C# and Windows have been optimized to work together, so it is no surprise that developers use C# when creating desktop applications for the popular operating system. There is a lot of documentation and examples that make C# coding easy for Windows.


Large game engines such as the Unity Game Engine allow games to be coded in C#. Unity has been used to create 3D, 2D, virtual reality, and augmented reality games on most consoles and platforms. It has been used to create thousands of games including PGA Tour 2K21 and Pokémon Mystery Dungeon: Rescue Team DX.

Web Development

C# and the .NET framework are frequently used for back-end web development. This means they are used to handle all of the logic that goes on behind-the-scenes for websites. It is especially common when the web servers are running on IIS, which makes up a quarter of web server installations.

What to Look for When Hiring a C# Developer

When hiring a C# programmer, there are a few things you have to consider including experience, rates, and the type of work arrangement. It also depends on the type of project you have and what skills you need to complete it.

C# Required Skills

Here are some of the basic skills that a C# Developer is expected to have:

  • Standard C# library functions
  • Asynchronous functions
  • Built-in C# data structures
  • Strong grasp of the .NET framework
  • Object-oriented programming (OOP)

C# Experience

C# developers should have some experience with the following:

  • Desktop frameworks such as WPF
  • Communication frameworks such as WCF
  • Azure cloud computing services
  • Databases such as MySQL or MS SQL Server
  • Programming with similar languages such as Java, C, or C++
  • Creating user-friendly graphical user interfaces (GUIs)
  • Knowledge of Visual Studio
  • Testing and debugging C# programs with programs such as nUnit or SpecFlow
  • Enterprise, commercial, and open-source projects

How to Write a C# Job Description

Writing the perfect C# job description is essential to ensure that you can attract the top developers. It's also important to ensure that you set the proper expectations up-front to streamline the vetting process, saving everyone time and money.

C# Developer Job Description Template

Company Introduction

Use this section to write 2-3 sentences about your company. Make sure to provide information about the company culture and benefits. This would be a good section to link to your company website. The best candidates will do some advanced research.

Job Description

We are looking for a C# developer who has experience working with the .NET framework to create Windows applications. You will need to work with stakeholders in the business to plan and improve software, as well as optimize and maintain our existing software. You will be responsible for taking on different sections of the software development lifecycle, and seeing that our software is released without problems.


  • Design and develop software to meet the needs of stakeholders
  • Write clean and self-documenting code that is easy to read
  • Actively contribute to discussions and analysis about software requirements
  • Analyze and fix bugs in existing code
  • Support the team and take ownership of tasks related to the software
  • Add other responsibilities here that are important for the project/job


  • Writing clear and self-documenting code, organizing classes and methods
  • Use of good design patterns in C# and connected frameworks
  • Handling asynchronous functions
  • Understanding of object-oriented programming (OOP) and inheritance
  • Familiarity with database software such as MS SQL Server {{if_required}}
  • Familiarity with Azure cloud computing services {{if_required}}
  • Producing unit tests and integration tests
  • Understanding of code versioning tools such as Git
  • Communicating with stakeholders and team members
  • A good understanding of QA best practices
  • Specify other frameworks, libraries, or any other technology relevant to your project/job
  • Education level or certification requirements

C# Interview questions

When looking to hire a C# developer, consider asking some of the following interview questions:

  • What is the difference between public, static, and void?
  • How are nullable types used in C#?
  • What is enum in C#?
  • When would StringBuilder be used instead of String in C#?
  • What are some of the differences between C# and Java?
  • What is serialization?
  • When would method overloading be used?
  • What is the difference between “throw” and “throw ex” in .NET?
  • What is the difference between managed and unmanaged code?
  • When would a struct be used in C#?
  • How can an array be sorted in descending order?
  • What is inheritance?
  • What is abstraction and when would it be used?
  • Is there a difference between a constant and a readonly value?

Freelance C# Developer Rates

The average salary for a C# developer is $95,595 per year in the United States. When hiring a C# freelancer, you can expect to pay $63.13 on average per hour. C# freelancer rates can range from $12-$120 per hour depending on the developer's experience, where they are located, their availability, and other programming languages required.

Check out our detailed pricing guide for more freelance web developer rates.

Where to Hire a C# Developer – Top Websites

Read out list of the top websites to hire a C# developer.

Developer Hiring Guides

If you are looking for other types of technical talent, we’ve put together hiring guides for these technologies as well.

Programming Languages
Top Programming Languages
Frontend Frameworks
Top Frontend Frameworks
Backend Frameworks
Top Backend Frameworks
Content Management Systems
Content Management Systems
  • Unity
  • Salesforce
  • iOS / Android


Where can I find a C# developer?

There are many places where you can find and hire a C# developer online. If you're looking for a full-time developer, you can try popular job boards like Indeed and LinkedIn. For the best freelancers, consider using a remote hiring platform focused on placing programmers like UpStack or Toptal. You can also find C# developers on general freelancing marketplaces like Upwork and Fiverr.

How much does it cost to hire a C# developer?

The average salary for a C# developer is $95,595 per year in the United States. When hiring a C# freelancer, you can expect to pay $63.13 on average per hour. C# freelancer rates can range from $12-$120 per hour depending on the developer's experience, where they are located, their availability, and other programming languages required.

What are the most important skills to look for in a C# developer?

C# developers need to know about the different frameworks that are used with the languages including .NET WPF. They also need to be familiar with many of the features of the language such as object-oriented programming.

What does a C# developer do?

C# developers are there to program Windows applications and games using the C# programming language. As well as writing code, they are also responsible for maintaining existing code, optimizing programs, and working with design teams to plan new projects.