Senior Backend .Net Developer

Key Responsibilities Design, develop, and maintain scalable .NET / ASP.NET Core applications Develop and maintain Microservices-based architectures Build and consume RESTful APIs and integrate with internal and external systems Implement asynchronous communication using RabbitMQ and message-based architectures Design and implement event-driven solutions using message queues and exchanges Handle message reliability, retries, acknowledgements, dead-letter queues, and error handling Develop clean, maintainable, and reusable code following Clean Architecture, SOLID, and design patterns Work with SQL Server and optimize database queries, stored procedures, and data access Implement authentication and authorization using appropriate security mechanisms Troubleshoot production issues and analyze application logs and distributed-system failures Collaborate with Frontend, QA, DevOps, Business Analysts, and Solution Architects Participate in code reviews and ensure adherence to development standards Write unit and integration tests and ensure high-quality deliverables Support CI/CD pipelines and application deployments in cloud/containerized environments Monitor and improve application performance, scalability, and reliability Requirements Strong experience with C# and .NET / ASP.NET Core Strong understanding of Microservices Architecture Strong experience with REST APIs and API integration Hands-on experience with RabbitMQ Good understanding of: Exchanges and Queues Direct, Topic, Fanout exchanges Routing Keys Acknowledgements Dead-Letter Exchanges/Queues Retry mechanisms Message durability and persistence Publisher/Consumer patterns Strong experience with SQL Server Good understanding of Entity Framework Core / Dapper Experience with Dependency Injection and Middleware Strong knowledge of SOLID principles and Design Patterns Experience with Git and source-control workflows Understanding of Docker and Kubernetes is highly preferred Experience with Azure or another cloud platform is a plus Knowledge of Redis, caching, and distributed systems is a plus Experience with CI/CD and Azure DevOps is preferred Sobre a empresa BlackStone eIT 491.369 seguidores Seguir Atividades dos serviços de tecnologia da informação • 1001-5000 funcionários • 331 no LinkedIn Blackstone eIT is a leading System Integrator (SI) and Independent Software Vendor (ISV), globally dedicated to engineering transformative enterprise solutions and intelligent design. Our core focus is on delivering innovative, customized technology that enables clients to evolve into digital-first, data-informed, and AI-enabled organizations. Ultimately, we are driven by a singular vision: a world where technology seamlessly integrates across all business processes and government services, thereby empowering both businesses and communities to thrive in an increasingly digitized world. Our mission is to empower customers to harness the full potential of intelligent technologies, fundamentally transforming their operations across various industries. This success is driven by our commitment to helping clients build and implement reliable, cost-effective, and scalable solutions designed to optimize business operations, enhance customer experience, and accelerate sustained business growth.