Yumatech is a global recruiting firm based in Madrid whose mission is to help companies transform and elevate their teams by providing them with access to the most talented professionals in the technology ecosystem.We are recruiting for a tech hub for global IOT and Industrial Hub in Madrid with focus on engineering manufacturing and IT teams over the world.We’re looking for a Senior fullstack .NET Developer to join a global engineering team — someone passionate about crafting robust, cloud-native systems and delivering clean, top high-performance code.Develop and Maintain Applications: Build modern web and mobile solutions using .NET, C#,and MAUI.Architect Cloud Solutions: Design scalable, azure cloud-native systems following microservices, API-first, and event-driven design principles.Collaborate within Teams: Work hand-in-hand with product owners, architects, and UX/UI designers to turn business ideas into efficient, elegant technical solutions.Embed DevOps Culture:. Work with Azure, Git, Grafana, and OpenTelemetry for monitoring and observability.Requirements:3+ years of practical experience in application development, ideally building cloud-based software.Proficiency in C#, .NET, and JavaScript/TypeScriptSolid understanding of microservices, event-driven systems, and API-centric architectures.Proven experience with RESTful APIs, GraphQL, and asynchronous messaging technologies (Kafka, MQTT).Hands-on experience with Azure, CI/CD, and containerization tools such as Docker.What we offerJoin a forward-thinking team that builds innovative, cloud-native products.Opportunity to work in a global environment that values creativity, autonomy, and collaboration3 days home office and permanent contract with our end client in Madrid