Senior Full-Stack Dev: React + .NET for Enterprise Intranet

Alphabet Consulting; Madrid; Presencial; EUR 70.000 - 90.000; Jornada completa

Descripción de la vacante

Alphabet Consulting, S.L. seeks a Senior Full Stack Developer to drive evolution of a corporate intranet platform used across an international hospitality group.

You will work with a multidisciplinary team to build robust architectures, develop RESTful APIs with .NET/ASP.NET Core, and integrate with Microsoft 365, SharePoint and Azure. Strong English required. Experience with React SPA, MySQL, and modern testing frameworks is essential.

Formación

• 4–5 years in Full Stack or Backend software development (minimum 3 years with .NET).
• Core Stack: .NET / ASP.NET Core + React SPA.
• Microsoft Graph, SharePoint Online, and Azure AD / Microsoft Entra ID.
• Databases: Relational databases, specifically MySQL.
• Testing: Jest, React Testing Library, Cypress; writing unit/integration tests.
• Methodologies: Agile environments (Scrum/Kanban) and Git.
• Languages: English proficiency is required.

Responsabilidades

• 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.).

Conocimientos

Full stack development

Backend development (.NET)

React SPA

RESTful APIs

Architecture design (Clean/Hexagonal)

Microsoft ecosystem

MySQL

Testing (Jest, Cypress)

Agile (Scrum/Kanban)

Git

CI/CD

AI tools in development

Herramientas

React tooling (Hooks, Context)

.NET / ASP.NET Core

Jest

Cypress

GitHub Copilot

Claude Code

Azure DevOps

Microsoft Graph

SharePoint Online

Azure AD / Entra ID

Descripción del empleo

Alphabet Consulting, S.L. seeks a Senior Full Stack Developer to drive evolution of a corporate intranet platform used across an international hospitality group.

You will work with a multidisciplinary team to build robust architectures, develop RESTful APIs with .NET/ASP.NET Core, and integrate with Microsoft 365, SharePoint and Azure. Strong English required. Experience with React SPA, MySQL, and modern testing frameworks is essential.