.NET Developer

We are looking for a .NET Developer for a platform built on a microservice-based backend architecture. The system handles real-time communication, geospatial calculations, media processing, and integrations with multiple external services.The backend is developed using .NET 7, C# 11, and follows Clean Architecture and Domain-Driven Design (DDD) principles.

What will need to do:

• Design, develop, and maintain backend microservices using ASP.NET Core (.NET 7)
• Implement business logic following Clean Architecture and DDD
• Work with PostgreSQL/PostGIS for complex data models and geospatial queries
• Build and optimize real-time communication features using SignalR
• Develop and maintain background jobs using Hangfire
• Integrate external services (OAuth providers, payment systems, media services, notifications)
• Optimize performance, scalability, and database queries
• Ensure application security following OWASP Top 10
• Participate in code reviews, refactoring, and architectural discussions
• Collaborate closely with product and frontend teams

Our expectations:

• 3+ years of experience with .NET 7 and C# 11
• 1+ years of experience with EF Core 7 (migrations, DbContextFactory, DbContextPool, compiled models)
• Deep understanding of ASP.NET Core, Web API, Middleware, Dependency Injection
• Advanced use of LINQ, async/await, and asynchronous programming
• Experience with PostgreSQL
• Experience with microservices, high-load systems and real-time systems (SignalR or similar)
• Strong understanding of Redis (StackExchange.Redis, Sorted Sets, Lua scripts)
• Knowledge of DRY, SOLID, and KISS principles
• Analytical mindset and attention to detail
• English at a B1-B2 level, Russian at a B2 level

It will be a plus:

• Media processing experience (ImageSharp, FFmpeg)
• AWS S3 or similar object storage
• Experience with payment integrations (Stripe, PayPal, Apple IAP, Google Play Billing)
• Firebase, Google Cloud Vision API
• Unit and integration testing (xUnit/NUnit, Moq/NSubstitute)
• Experience working with legacy codebases
• Experience with large-scale databases and long-lived projects

Why Join Us

At Mad Devs, you will be part of a company that values meticulous attention to detail, strategic thinking, and continuous improvement. You will work on meaningful projects alongside a talented and supportive team. By joining our team, you will have the opportunity to make a real impact, grow your career, and contribute to developing cutting-edge solutions in the world of quality assurance.