Senior .NET Developer Remote

#vacancy #hot #English #job #Poland #Senior #dotnet #remote Senior .NET Developer at Elinext Location: Poland or EU Experience: 3–5 years Format: Remote / office in Warsaw / hybrid   Elinext is an international IT company specializing in software development and integration for customers worldwide. We help businesses build reliable, scalable, and modern digital solutions across a wide range of industries.   We are looking for a Senior .NET Developer to join a long-term project in the financial services / receivables management domain. The product is focused on debt collection and debt management services, supporting processes related to consumer debt, mortgage-backed debt, and corporate debt. In this role, you will work on backend solutions in a complex business environment, contributing to the design and development of scalable distributed systems and business-critical services.   ✅Responsibilities - Design and develop backend services using C# / .NET - Build and maintain REST APIs with ASP.NET Core - Apply Domain-Driven Design (DDD) principles, including bounded contexts and ubiquitous language - Design and develop microservices, ensuring service autonomy and proper inter-service dependency management - Work with event-driven architecture, including event production, consumption, and eventual consistency patterns - Implement messaging solutions with RabbitMQ, including exchange / queue configuration, publish-subscribe patterns, retries, and dead-letter handling - Contribute to system reliability, maintainability, and performance in a distributed environment - Collaborate with the team on architecture, technical design, and implementation decisions ✅Requirements - 3–5+ years of commercial experience in .NET development - Strong knowledge of C# / .NET - Hands-on experience with ASP.NET Core and REST API development - Good understanding of Domain-Driven Design (DDD) - Experience with microservices architecture - Experience with event-driven systems - Strong practical knowledge of RabbitMQ - Ability to work with distributed systems and solve complex backend challenges - Good communication skills and a proactive engineering mindset - English B2 💼 What We Offer - Small-company feel within a fast-growing international environment - Friendly, collaborative, and mission-driven team - Health & retirement benefits - Vacation plus 5 additional paid sick days - Medical insurance - Discounts in various establishments depending on the country - Monetary bonuses for important life events - Long-service benefits, including additional vacation days and other perks - Corporate events and team-building activities - Corporate English courses - Support with professional certifications and reimbursement for professional courses and training