Back-end Engineer (.NET

Overview

App Great is one of the fastest growing global IT companies, supporting the highest tech organizations in the world with 6 locations: 1 in Sofia, 1 in Skopje, 1 in Bucharest, 1 in Tel Aviv, 1 in Chisinau, 1 in Warsaw.

We are working with top talents and highly experienced management to ensure the world’s leading technology companies meet all the business challenges that the future holds.

We are App Great
! We are a young and ambitious company like no other!

WHY TO JOIN OUR TEAM?

The most important part of App Great is the team. From our founders to the last person, we are committed to creating a pleasant environment and a place where everybody feels like they belong. We invest in them in any way we can, starting from the amazing atmosphere in the office, unique benefits, and career growth opportunities.

We are seeking a Back-End Engineer with a deep expertise in the .NET ecosystem to join our development team. In this role, you will be responsible for designing, building, and maintaining robust server-side logic and ensuring high performance and responsiveness to requests from the front-end. We are looking for a developer who is not only a master of C# and SQL but also stays at the cutting edge by integrating AI tools into their daily development workflow to drive efficiency and innovation.

• System Architecture: Design and develop scalable, high-performance backend services using ASP.NET Core.
• Database Management: Architect and optimize complex SQL databases
  , ensuring data integrity and efficient query performance.
• API Development: Build and maintain RESTful APIs and microservices to support web and mobile applications.
• AI Integration: Actively use AI-powered development tools (e.g.,
  Git Hub Copilot, Cursor, ChatGPT
  ) to accelerate code generation, debugging, and unit testing.
• Collaboration: Work closely with front-end developers to integrate user-facing elements with server-side logic.

• Strong proficiency in C# and the .NET 6+ / .NET Core framework.
• Extensive experience with SQL Server or PostgreSQL
  , including schema design, T-SQL, and performance tuning.
• Entity Framework Core or Dapper for ORM.
• Experience with Dependency Injection
  , LINQ
  , and Asynchronous programming
  .
• Familiarity with mainstream testing frameworks like xUnit, NUnit, or MSTest
  .
• Expert use of Git and CI/CD pipelines (Azure Dev Ops, Git Hub Actions, or Jenkins).

• Demonstrated ability to use AI tools for prompt engineering, automated documentation, or architectural brainstorming.
• Experience with modern front-end frameworks like ReactJS or VueJS to facilitate seamless integration.
• Hands-on experience with cloud platforms, particularly Azure (App Services, Functions, SQL Azure) or AWS
  .
• Familiarity with Docker and Kubernetes for microservices deployment.

• Attractive remuneration package.
• Working style – Hybrid.
• Flexible Working Hours
  :
  We care about results, not when you clock in, depending on the team working schedule.
• Comprehensive Private Medical Insurance
  :
  Your health matters to us (UNIQA).
• Annual leave starts with 21 days up to 25 days (depending on the relevant experience).
• Plus an extra day off to celebrate your birthday 🎉.
• Multisport Card
  :
  Stay active with a subsidized membership, courtesy of App Great.
• Netflix or Spotify Subscription
  :
  Your choice, fully covered by us for your entertainment and relaxation.
• eMag birthday gift voucher
  : A little extra something to celebrate your special day.
• Childbirth gift
  : A thoughtful gift to support and celebrate one of life’s most important moments.
• Monthly Food Vouchers
  .
• Office Snacks & Treats
  :
  Fresh fruits, nuts, coffee, sweets, and protein bars always stocked.
• Team Events & Offsites
  :
  Regular team buildings and company events to keep the good vibes going.
• Learning & Development
  :
  Access to training programs to boost your skills and career.
• Career Growth Opportunities
  :
  Grow with a fast-scaling, innovation-driven company.
• Supportive Culture
  :
  Work with a young, motivated, and close-knit team
• Modern Office in Prime Location
  :
  Our office is right next to Paradise Mall in Sofia—easily accessible and surrounded by great spots.

We believe great work starts with great people. If this feels like the right place for you, we’d love to connect.

@App Great we appreciate every application we receive. Please note that only candidates selected for the next stage of the recruitment process will be contacted. If your profile matches the role, our Talent Acquisition team will reach out to you directly.

Thank you for your interest in joining us, and we encourage you to stay connected through our Linked In and Career pages for future opportunities and insights from the IT market.

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