.NET Developer Intern


offices around the world


Employees strong


Senior Engineers


Projects Completed


Programming Languages


tech & non-tech trainings per year

Note: We offer flexible working models for all open positions. You can choose from three options: a combination of work from home and office, work only from home, or work from anywhere in the world.

A custom development company, MentorMate is a design and software powerhouse with mature and established practices in Enterprise Web & Mobile Development, Human-Centered Design, Cloud & DevOps. We are looking for .NET Interns ready to take the first step in their professional journey and become .NET Developers. 

We know how hard it can be to make a kick-start in your career. Becoming part of our 3-months paid internship program, you will be mentored and work with some of the top .NET experts in Bulgaria. They will provide regular feedback, guidance, and practical assignments during your transition from a newbie to a professional. You are not stepping into a typical internship program, but you’re rather embarking on a career journey with MentorMate. The statistics also back up this statement because 100% of the interns take on a Junior .NET Developer position at the end of the program.

As a top engineering employer run by engineers, MentorMate provides challenging careers in a friendly, people-oriented environment. We value our employees and share our success through competitive pay and benefits, advancement opportunities, and flexible working models.

Being part of our .NET internship program, you will
  • Go through a 3-months internship program 
  • Receive a salary while developing your programming skills full-time
  • Be mentored and coached by some of the highly qualified MentorMate experts
  • Level up your skills and knowledge in both back-end (.NET 5, ASP.NET Core) and front-end (Angular, React) technologies
  • Meet new challenges and work on individual and group projects using Scrum
  • Learn best practices working with company source control and bug tracking system
  • Join a culture that emphasizes hard work, leadership, and having fun
What we are looking for
  • Analytical thinking and a little experience with algorithms and data structures
  • Basic knowledge of relational database design and implementation
  • Basic knowledge of .NET, OOP and web technologies such as HTML5, CSS3 and JavaScript
  • Passion for building .Net web applications 
  • Excellent communication and teamwork skills
  • Proactiveness - ask and go beyond what’s expected
  • Very good spoken and written English
How to apply
  • Send us your CV in English 
  • After applying, you’ll receive an assignment via email. You should build your solution with one of the following programming languages: .NET, Java, C or C++, JavaScript (аny framework or library can be used)
  • We will expect to receive your solution within 7 days after the application
  • If you meet our requirements, we will invite you to an online interview
  • The best candidates will receive an offer to join our .NET Internship program
We offer

Career Development

  • Professional growth in a global company
  • Variety of meaningful projects
  • Latest technologies to choose from
  • Work side-by-side with top engineers
  • Challenging problems to solve
  • A career path with regular salary increases
  • Internal technical and soft skills trainings
  • Knowledge sharing

Work & Life Balance

  • Regular team buildings and initiatives
  • Employee Referral program with bonuses
  • Gamification program
  • Modern offices with implemented health measures and chill out zones
  • Internal communities of interest such as sports, hiking, etc.
  • Charity and volunteer activities
  • Diverse working environment
  • MentorBike to use
Career Path
Software Development Manager
Delivery Manager
Technology Principal
Software Development Lead
Software Architect
Delivery Lead
Senior Software Developer
Software Developer
Junior Software Developer
Intern Software Developer
Apply now