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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Programador Full Stack React &.Net (Senior) - **Company:** Alphabet Consulting - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** ASP.NET, JavaScript (Programming Language), .NET Framework, Microsoft Windows, Agile Methodology, Artificial Intelligence, Microsoft Azure, Microsoft Online Services, Business Systems, Databases, Relational Databases, DevOps, MySQL, Scrum Methodology, Azure Active Directory, Microsoft SharePoint, Software Engineering, Systems Integration, Modern Ui, GitHub Copilot, ReactJS, Cypress (Programming Language), Backend, Git, Integration Tests, Data Management, Front End Software Development, React Testing Library, Restful APIs, Software Version Control, Web Api, Microservices - **Published:** September 6, 2026 - **Apply:** https://www.buscojobs.com.es/programador-full-stack-react-net-senior-en-madrid-ID-369512089 ## About the Role DevOps, Quality & AI: Work in Microsoft Azure environments, support CI/CD pipelines, execute frontend/backend testing (Jest, Cypress), and leverage AI-powered coding tools (GitHub Copilot, Claude Code, etc.). Requirements: Experience: 4-5 years in Full Stack or Backend software development (minimum 3 years with .NET ). Core Stack: . NET / ASP.NET Core + React SPA. Microsoft Ecosystem: Microsoft Graph, SharePoint Online, and Azure AD / Microsoft Entra ID. Databases: Relational databases, specifically MySQL. Testing: Experience with testing frameworks (Jest, React Testing Library, Cypress) and writing maintainable unit/integration tests. Methodologies: Agile environments (Scrum/Kanban) and version control with Git. Languages: English proficiency is required. Nice to Have: Experience building corporate intranets, employee portals, or complex business systems. Familiarity with microservices or modular monolith architectures. Hands-on experience applying Artificial Intelligence (AI) to software development workflows. #J-*****-Ljbffr ## Description Descripción del trabajo ALPHABET CONSULTING, S.L .es una empresa especializada en la provisión de Servicios TIC e Ingeniería para la gestión empresarial, ofreciendo soluciones diseñadas a medida de las necesidades de nuestros clientes.About the Role: We are looking for a Senior Full Stack Developer to drive the ongoing evolution of a corporate intranet platform used by multiple business units across an international hospitality group.You will work closely within a multidisciplinary team (Product Owner, UX/UI Designers, QA Engineers) to build robust, scalable solution architectures, develop RESTful APIs, and deliver seamless integrations with Microsoft 365, SharePoint, and Azure .Responsibilities: Backend & Architecture: Design, develop, and maintain RESTful APIs in .NET / ASP.NET Core following modern design patterns (Clean / Hexagonal Architecture).Frontend (React SPA): Develop reusable UI components using modern React patterns (Hooks, Context), implement state management, and integrate client-side components with backend APIs.Microsoft Ecosystem Integrations: Integrate with Microsoft Graph, SharePoint Online , and handle authentication/authorization via Azure AD / Microsoft Entra ID .Data Management: Model relational data and optimize queries in MySQL .DevOps, Quality & AI: Work in Microsoft Azure environments, support CI/CD pipelines, execute frontend/backend testing (Jest, Cypress), and leverage AI-powered coding tools (GitHub Copilot, Claude Code, etc.).Requirements: Experience: 4-5 years in Full Stack or Backend software development (minimum 3 years with .NET ).Core Stack: .NET / ASP.NET Core + React SPA.Microsoft Ecosystem: Microsoft Graph, SharePoint Online, and Azure AD / Microsoft Entra ID.Databases: Relational databases, specifically MySQL.Testing: Experience with testing frameworks (Jest, React Testing Library, Cypress) and writing maintainable unit/integration tests.Methodologies: Agile environments (Scrum/Kanban) and version control with Git.Languages: English proficiency is required.Nice to Have: Experience building corporate intranets, employee portals, or complex business systems.Familiarity with microservices or modular monolith architectures.Hands-on experience applying Artificial Intelligence (AI) to software development workflows.#J-*****-Ljbffr ## Related Videos - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [Back(end) to the Future: Embracing the continuous Evolution of Infrastructure and Code](https://www.wearedevelopers.com/videos/440-back-end-to-the-future-embracing-the-continuous-evolution-of-infrastructure-and-code) - [Branch your database like your code: How schema changes and pull requests go hand in hand](https://www.wearedevelopers.com/videos/350-branch-your-database-like-your-code-how-schema-changes-and-pull-requests-go-hand-in-hand) - [DevOps Maturity Check – a way to balance autonomy and alignment](https://www.wearedevelopers.com/videos/58-devops-maturity-check-a-way-to-balance-autonomy-and-alignment) ## Related Articles - [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [16 Best Free React UI Libraries in 2025](https://www.wearedevelopers.com/magazine/148-16-best-free-react-ui-libraries-in-2025)