Our client is a technology company with over 30 years of experience, specialized in software solutions for the enclosure sector. Its purpose is to positively contribute to the world by creating a reference organization in its industry where people can develop their potential and find happiness in their work. **DESCRIPTION** We are seeking a Senior Full Stack Developer with solid experience in .NET environments and frontend frameworks such as Vue, Razor, or Blazor to join our web development team. The selected candidate will become part of the team responsible for the web area of a SaaS product, participating in the development of features arising from collaboration with clients and their subsequent integration as standard product improvements. **RESPONSIBILITIES** * Design, develop, and maintain functionalities using C\#, Razor, Blazor, and Vue. * Participate in architectural decisions and continuous product improvement, ensuring scalability and usability. * Optimize performance, security, and code quality. * Implement and consume REST APIs, efficiently integrating frontend and backend. * Collaborate with other teams to ensure high-quality deliveries. * Conduct code reviews and mentor more junior team members. * Document technical solutions and best practices. * Degree or Engineering in Computer Science or equivalent education. * At least 5 years of experience developing complex web applications using ASP .NET Core / Framework, MVC, and Entity Framework. * Experience designing components with Razor, Blazor, and Vue, and developing responsive applications. * Advanced knowledge of SQL Server, including query optimization and stored procedures. * Experience working with RESTful APIs, service integration, and authentication mechanisms such as JWT or OAuth2\. * Proficiency with Git and collaborative methodologies (GitFlow). * Strong understanding of software architecture, design patterns, and web security. * Experience in projects involving microservices or distributed architectures. **DESIRABLE** * Experience with BabylonJS or similar technologies, as well as WebXR. * Knowledge of WebAssembly integration. * Familiarity with Docker. * Fluent English language skills.