OpenCourser brand icon
Sign in
We may earn an affiliate commission when you visit our partners.

Ultimate C# Masterclass for 2025

4.7 Filled star Filled star Filled star Filled star Half star
Based on 5,382 ratings
see reviews
Krystyna Ślusarczyk

Welcome to the "Ultimate C# Masterclass" course. Are you ready to take your knowledge and career to the next level?

47 hours of on-demand videos, 67 coding exercises, 89 quizzes, and 16 assignments. All this is to help you start coding in C# like a pro.

I'm a .NET Technical Lead with over 10 years of professional experience. I will help you on this journey every step of the way, no matter if you are a complete beginner who has never coded before or a developer who wants to advance to the next level. We will start from the basics, but we will not stop there.

Read more

Welcome to the "Ultimate C# Masterclass" course. Are you ready to take your knowledge and career to the next level?

47 hours of on-demand videos, 67 coding exercises, 89 quizzes, and 16 assignments. All this is to help you start coding in C# like a pro.

I'm a .NET Technical Lead with over 10 years of professional experience. I will help you on this journey every step of the way, no matter if you are a complete beginner who has never coded before or a developer who wants to advance to the next level. We will start from the basics, but we will not stop there.

I will not only teach you how to code but also how to code well. Clean code and good design will be our priorities, and design patterns will be shown in practice, not as abstract concepts that seem impossible to be used in real-life challenges. Refactoring will be something we practice all the time.

Programs written in C# are fast, but we can make them faster. The performance will be discussed in detail. Asynchrony and multithreading will help us improve it even more.

You will learn more than C# syntax. It is not only a course about the language but a course about programming in general. You will understand why all the things we learn are needed and how to use them right. Moreover, I will show you how they work under the hood, and thanks to that, you will gain an in-depth understanding of C#. This course also covers the development of unit tests using NUnit and Moq libraries.

Practice makes perfect. You will solve dozens of coding exercises right in the browser. You will also implement coding assignments, such as a program processing the data read from an external API or an app for analyzing PDF files. You will also solidify your knowledge by solving short quizzes as well as doing final knowledge checks after each section.

This course comes with a 30-day money-back guarantee. If you are not satisfied, you can return it and get all your money back, no questions asked. In other words, you don't risk anything by purchasing this course. You have nothing to lose, and the knowledge you will gain may take your career to the next level.

So, why hesitate? Join me in this course and start coding like a professional.

Enroll now

What's inside

Learning objectives

  • You will gain an in-depth understanding of c#.
  • You will understand how to write high-performance c# code.
  • You will understand the principles of object-oriented programming.
  • You will learn the most useful design patterns.
  • You will learn to write code of excellent quality.
  • You will gain the knowledge necessary for c# job interviews.
  • You will practice your skills by solving exercises in the browser, as well as by creating advanced projects.
  • You will learn how to use visual studio like a pro.
  • You will learn how to create unit tests using nunit and moq libraries.
  • You will learn how to use asynchrony and multithreading.

Syllabus

Introduction
Welcome! Basic information & how to get help
46 seconds about your instructor
72 seconds about what this course is
Read more

Traffic lights

Read about what's good
what should give you pause
and possible dealbreakers
Starts with the fundamentals of C# and progresses to advanced topics like asynchrony and multithreading, making it suitable for both beginners and developers looking to deepen their knowledge
Emphasizes clean code, good design principles, and refactoring, which are essential practices for professional software development and maintaining high-quality codebases in C#
Covers unit testing with NUnit and Moq, which are widely used libraries in the C# ecosystem for ensuring code reliability and maintainability through automated testing practices
Includes coding exercises and assignments that simulate real-world scenarios, such as processing data from external APIs and analyzing PDF files, providing practical experience
Explores performance optimization techniques, including asynchrony and multithreading, which are crucial for building responsive and efficient C# applications that handle concurrent operations effectively
Focuses on object-oriented programming principles and design patterns, which are fundamental concepts for building scalable, maintainable, and well-structured C# applications

Save this course

Create your own learning path. Save this course to your list so you can find it easily later.
Save

Reviews summary

Ultimate c# masterclass offers deep dive

According to students, this course offers a highly comprehensive and in-depth exploration of C#, covering everything from basics to advanced topics like performance optimization, design patterns, and multithreading. The instructor's clear and engaging teaching style is frequently praised, making complex concepts understandable. Learners appreciate the practical coding exercises and meaningful assignments which solidify understanding and prepare for real-world applications and job interviews. While the course is seen as well-structured and valuable for beginners, some note the pace can be fast or requires prior basic programming logic. Overall, it is considered a masterclass that effectively builds proficiency.
Logical flow helps build understanding incrementally.
"The course is logically organized from start to finish, making it easy to follow the progression."
"Each section builds perfectly on the last, creating a solid foundation."
"The structure makes learning C# feel manageable, despite the amount of content."
Provides knowledge needed for C# job applications.
"I feel much more confident applying for C# roles after completing this course."
"The course covers topics frequently asked in job interviews."
"Gained a solid understanding that helps me discuss technical concepts in interviews."
Hands-on coding and assignments are very helpful.
"The coding exercises after each lecture really solidify your understanding."
"The assignments are challenging but highly rewarding, forcing you to apply what you've learned."
"I can now apply what I learned immediately to my work projects."
"The projects are realistic and great for building a portfolio."
Covers C# extensively from basics to advanced topics.
"This course covers everything you need for modern C# development from scratch."
"It doesn't just teach syntax, it goes deep into the 'why' behind concepts, including performance and design patterns."
"I learned about advanced topics like async/await and multithreading in detail, which is exactly what I needed."
"The 'masterclass' title is well-deserved; the content is extensive and thorough."
Mosh is highly praised for clear and engaging teaching.
"Mosh is an excellent teacher, he explains complex stuff simply. Best instructor on Udemy."
"The instructor's explanations are very clear and he makes learning enjoyable. I feel motivated to continue."
"Mosh is the best C# instructor I have ever had. He explains topics so well."
"I really appreciate how the instructor breaks down difficult concepts step by step."
Some absolute beginners find the course pace very fast.
"As a total beginner, I sometimes felt overwhelmed by the pace and had to rewatch lectures multiple times."
"The difficulty increases quickly; it requires dedicated effort and possibly some prior basic programming knowledge."
"If you are an absolute beginner with no prior coding experience, be prepared to pause and practice a lot."
"I would recommend having some basic programming logic understanding before starting this course."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Ultimate C# Masterclass for 2025 with these activities:
Review Basic Programming Concepts
Strengthen your understanding of fundamental programming concepts before diving into C#. This will make grasping C#'s syntax and object-oriented features easier.
Browse courses on Variables
Show steps
  • Review variables, data types, and operators in a language you are familiar with.
  • Practice writing simple programs using conditional statements and loops.
  • Complete online quizzes or coding challenges to test your knowledge.
Review 'C# 8.0 and .NET Core 3.0 – Modern Cross-Platform Development'
Gain a broader understanding of the C# language and its ecosystem. Reading this book will provide a solid foundation for the course material.
View C# 8.0 and .NET Core 3.0 – Modern Cross... on Amazon
Show steps
  • Read the introductory chapters to understand the basics of C# and .NET Core.
  • Focus on chapters covering language features and core libraries.
  • Refer to specific chapters as needed to supplement course content.
Solve C# Coding Challenges on HackerRank
Reinforce your C# skills by solving coding challenges. This will help you apply the concepts learned in the course and improve your problem-solving abilities.
Show steps
  • Create an account on HackerRank or a similar platform.
  • Search for C# coding challenges at your level.
  • Solve at least three challenges per week, focusing on different concepts.
  • Review solutions and learn from your mistakes.
Four other activities
Expand to see all activities and additional details
Show all seven activities
Build a Simple Console Application
Apply your C# knowledge by building a small project. This will solidify your understanding of the language and its features.
Show steps
  • Choose a simple project, such as a number guessing game or a basic calculator.
  • Plan the project's structure and functionality.
  • Write the code, testing it frequently.
  • Refactor the code to improve its readability and maintainability.
Write a Blog Post on a C# Topic
Deepen your understanding of a specific C# topic by writing a blog post about it. This will force you to research the topic thoroughly and explain it clearly.
Show steps
  • Choose a C# topic that interests you, such as LINQ or asynchronous programming.
  • Research the topic thoroughly, using online resources and documentation.
  • Write a clear and concise blog post explaining the topic.
  • Include code examples to illustrate your points.
  • Publish your blog post on a platform like Medium or your own website.
Review 'Design Patterns: Elements of Reusable Object-Oriented Software'
Enhance your understanding of design patterns. This book will provide a solid foundation for applying design patterns in your C# projects.
View Design Patterns on Amazon
Show steps
  • Read the introductory chapters to understand the principles of design patterns.
  • Focus on patterns relevant to the course, such as Singleton, Factory, and Observer.
  • Try implementing the patterns in your own C# projects.
Contribute to a C# Open Source Project
Gain real-world experience by contributing to an open-source C# project. This will expose you to different coding styles, project structures, and collaboration workflows.
Show steps
  • Find a C# open-source project that interests you on GitHub or GitLab.
  • Read the project's documentation and contribution guidelines.
  • Identify a small bug or feature to work on.
  • Submit a pull request with your changes.
  • Respond to feedback from the project maintainers.

Career center

Learners who complete Ultimate C# Masterclass for 2025 will develop knowledge and skills that may be useful to these careers:
C# Developer
A C# developer specializes in using the C# programming language to build various applications and software systems. This "Ultimate C# Masterclass" course may be useful for anyone looking to begin their career as a C# Developer. It provides an in-depth understanding of C#, including its syntax, features, and best practices. The course also delves into object-oriented programming principles, design patterns, and unit testing, which are essential for building robust and maintainable C# applications. By taking this course, aspiring C# Developers can greatly improve their C# skills.
See salaries and explore the career path for C# Developer
.NET Developer
A .NET developer uses the .NET framework to build applications. This "Ultimate C# Masterclass" course may be useful to become an expert in .NET development. Since C# is a primary language within the .NET framework, mastering C# is essential for any .NET developer. The course will help you understand how to write high-performance C# code. As a .NET Developer, you will undoubtedly find that this course improves your knowledge and abilities.
See salaries and explore the career path for .NET Developer
Software Developer
A software developer designs, develops, and tests software applications. This "Ultimate C# Masterclass" course may be useful, particularly because C# is a popular language for software development, especially within the .NET ecosystem. With 47 hours of on-demand videos, 67 coding exercises, and many quizzes and assignments, this course will help you learn how to code in C# like a pro. The course also emphasizes clean code and good design, which are crucial for a successful Software Developer.
See salaries and explore the career path for Software Developer
Application Developer
An application developer specializes in creating applications for computers and other devices. This "Ultimate C# Masterclass" course may be useful, especially as it covers creating advanced projects. The assignments, such as processing data from an external API will help you immensely. Learning how to create high-performance C# code will enable the Application Developer to create efficient and responsive applications for your clients, further improving your standing with them.
See salaries and explore the career path for Application Developer
Software Engineer
A software engineer applies engineering principles to the design, development, maintenance, testing, and evaluation of computer software. This "Ultimate C# Masterclass" course may be useful, as the course focuses on writing clean code and designing software effectively. The course will help one learn the most useful design patterns. Moreover, the course provides a foundation in object-oriented programming, which are crucial for a Software Engineer.
See salaries and explore the career path for Software Engineer
Test Automation Engineer
A test automation engineer designs, develops, and maintains automated test scripts to validate software functionality. This "Ultimate C# Masterclass" course may be useful, especially because it covers the development of unit tests using NUnit and Moq libraries. Such practical skills will help the Test Automation Engineer create robust and reliable automated tests. This course will enhance your ability to ensure software quality through test automation.
See salaries and explore the career path for Test Automation Engineer
Technical Lead
A technical lead is responsible for guiding a development team and making key technical decisions on a project. The "Ultimate C# Masterclass" course may be especially useful for a technical lead because it teaches you how to not only code, but how to code well. The course will help you understand how to write high-performance C# code. As Technical Lead on a project, you will have the practical knowledge to teach and mentor others.
See salaries and explore the career path for Technical Lead
Full-Stack Developer
A full stack developer works on both the front-end and back-end of applications. This "Ultimate C# Masterclass" course may be useful, as it provides a strong foundation in C#, which is often used for back-end development. The course will help an aspiring developer understand how to write high-performance C# code and it covers the principles of object-oriented programming. As a Full Stack Developer, your understanding of C# will certainly be useful.
See salaries and explore the career path for Full-Stack Developer
Game Developer
A game developer is someone involved in the creation of video games. Many game developers seek guidance on building games with C# and the Unity game engine. This "Ultimate C# Masterclass" course may be useful, as it provides a solid foundation in C# programming. Knowledge of writing high-performance C# code will allow the Game Developer to optimize game performance. The skills you learn from this course will transfer directly into your work.
See salaries and explore the career path for Game Developer
Mobile App Developer
A mobile app developer designs and develops applications for mobile devices. This "Ultimate C# Masterclass" course may be useful, as C# can be used in mobile app development, particularly with platforms like Xamarin. The course will help an aspiring developer learn how to write high-performance C# code as well as how to use asynchrony and multithreading. Such knowledge and ability will set the Mobile App Developer up for success.
See salaries and explore the career path for Mobile App Developer
Data Engineer
A data engineer builds and maintains the infrastructure for data storage and processing. This "Ultimate C# Masterclass" course may be useful for building data processing pipelines and tools. Understanding how to write high-performance C# code may allow the Data Engineer to optimize performance for data pipelines. Moreover, the course teaches how to use asynchrony and multithreading. Such skills will prove useful when building efficient data processing solutions.
See salaries and explore the career path for Data Engineer
Data Analyst
A data analyst examines and interprets data to identify trends and insights. This "Ultimate C# Masterclass" course may be useful, since C# can be used to build custom data analysis tools and scripts. The assignments, such as processing data from an external API or an app for analyzing PDF files can be a great help in analyzing data for companies. This course can improve efficiency and streamline data operations.
See salaries and explore the career path for Data Analyst
Web Developer
A web developer is someone who builds and maintains websites. This "Ultimate C# Masterclass" course may be useful, since C# is useful in back-end web programming. It may allow the Web Developer to create more interactive websites. The Web Developer who knows C# will be able to improve their websites and satisfy their customers and clients.
See salaries and explore the career path for Web Developer
Database Administrator
A database administrator is responsible for managing and maintaining databases. This "Ultimate C# Masterclass" course may be useful for building custom tools and scripts for database management and automation. The assignments, such as processing data from an external API or an app for analyzing PDF files may be helpful in managing data in databases. This course will improve efficiency and streamline database operations.
See salaries and explore the career path for Database Administrator
IT Support Specialist
An IT support specialist provides technical assistance to computer users. This "Ultimate C# Masterclass" course may be useful for automating certain IT tasks. Asynchronous programming can allow for automation without interrupting other processes. While a background in C# is not a typical requirement, having the ability to automate processes can benefit the IT Support Specialist in their daily tasks.
See salaries and explore the career path for IT Support Specialist

Reading list

We've selected two books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Ultimate C# Masterclass for 2025.
Cover image
Design Patterns
Save
This classic book introduces fundamental design patterns. Understanding these patterns is crucial for writing clean, maintainable, and reusable code. The course mentions design patterns, and this book provides in-depth explanations and examples. It's a valuable resource for any C# developer looking to improve their code quality.
Design Patterns
Paperback
Check
Design Patterns
Kindle Edition
Check
Cover image
C# 8.0 and .NET Core 3.0 – Modern Cross-Platform...
Save
Provides a comprehensive guide to C# 8.0 and .NET Core 3.0, covering everything from the basics to advanced topics. It's a great resource for understanding the modern C# ecosystem. While the course focuses on later versions, understanding the evolution of the language is beneficial. This book can serve as a valuable reference throughout the course.
C# 8.0 and .NET Core 3.0 – Modern Cross-Platform...
Paperback
Check
C# 8.0 and .NET Core 3.0 – Modern Cross-Platform...
Kindle Edition
Check

Share

Help others find this course page by sharing it with your friends and followers:
Facebook
LinkedIn
Reddit
X
Link
Email

Similar courses

Similar courses are unavailable at this time. Please try again later.
Rating
4.7 Filled star Filled star Filled star Filled star Half star
Effort
47 total hours
Via
Udemy
Instructor
Krystyna Ślusarczyk
Language
English
Traffic lights
Read about what's good
what should give you pause
and possible dealbreakers
Starts with the fundamentals of C# and progresses to advanced topics like asynchrony and multithreading, making it suitable for both beginners and developers looking to deepen their knowledge
Emphasizes clean code, good design principles, and refactoring, which are essential practices for professional software development and maintaining high-quality codebases in C#
Covers unit testing with NUnit and Moq, which are widely used libraries in the C# ecosystem for ensuring code reliability and maintainability through automated testing practices
Includes coding exercises and assignments that simulate real-world scenarios, such as processing data from external APIs and analyzing PDF files, providing practical experience
Explores performance optimization techniques, including asynchrony and multithreading, which are crucial for building responsive and efficient C# applications that handle concurrent operations effectively
Focuses on object-oriented programming principles and design patterns, which are fundamental concepts for building scalable, maintainable, and well-structured C# applications
Share this
Share to help others discover this course.
Facebook LinkedIn X Reddit Link Email
Begin learning today
Enroll now to gain full access to Ultimate C# Masterclass for 2025.
Enroll now
Save for later
Add this course to your list. Find it anytime.
Save
Our mission

OpenCourser helps millions of learners each year. People visit us to learn workspace skills, ace their exams, and nurture their curiosity.

Our extensive catalog contains over 50,000 courses and twice as many books. Browse by search, by topic, or even by career interests. We'll match you to the right resources quickly.

Find this site helpful? Tell a friend about us.

Affiliate disclosure

We're supported by our community of learners. When you purchase or subscribe to courses and programs or purchase books, we may earn a commission from our partners.

Your purchases help us maintain our catalog and keep our servers humming without ads.

Thank you for supporting OpenCourser.

© 2016 - 2025 OpenCourser