Programador Full Stack React &.Net (Senior)

Alphabet Consulting; Madrid; Presencial; EUR 55.000 - 75.000; Jornada completa

Descripción de la vacante

Alphabet Consulting is seeking a Senior Full Stack Developer to drive the evolution of a corporate intranet platform used across international hospitality units. You will collaborate with Product Owner, UX/UI, and QA to build robust architectures, RESTful APIs, and seamless integrations with Microsoft 365, SharePoint, and Azure.

You will design and implement REST APIs in .NET Core, develop UI components in React, and ensure scalable data modeling with MySQL while adopting modern DevOps practices

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 Ecosystem: Microsoft Graph, SharePoint Online, and Azure AD / Microsoft Entra ID.
• Databases: Relational databases, specifically MySQL.
• Testing: Jest, React Testing Library, Cypress.
• Methodologies: Agile environments (Scrum/Kanban) and version control with Git.
• Languages: English proficiency is required.

Responsabilidades

• Backend & Architecture: Design, develop, and maintain RESTful APIs in .NET Core following modern design patterns.
• Frontend (React SPA): Develop reusable UI components, state management, and integrate with backend APIs.
• Microsoft Ecosystem Integrations: Integrate with Graph, SharePoint Online, and handle authentication via Azure AD.
• Data Management: Model relational data and optimize queries in MySQL.
• DevOps, Quality & AI: Work in Azure environments, support CI/CD, and test using Jest/Cypress.

Conocimientos

Full Stack development

Backend development

React SPA

Agile methodologies

Git

English language

Herramientas

.NET / ASP.NET Core

React

Microsoft Graph

SharePoint Online

Azure AD / Entra ID

MySQL

Jest

Cypress

GitHub Copilot

Claude Code

Descripción del empleo

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.