Programador full stack React & .NET (Senior)

HOLA CONSULTORES SL; Madrid; Presencial; EUR 52.000 - 76.000; Jornada completa

Descripción de la vacante

Hola Consultores SL is seeking a Senior Full Stack Developer to evolve a corporate intranet platform used across an international hospitality group.

You will collaborate with Product Owner, UX/UI designers, and QA to build scalable architectures, develop RESTful APIs, and integrate with Microsoft 365, SharePoint, and Azure. The role emphasizes .NET, ASP.NET Core, and React SPA, with MySQL for data and Azure-based CI/CD and testing.

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 / Entra ID experience.
• Relational databases, specifically MySQL.
• Testing with Jest, React Testing Library, Cypress and maintainable tests.

Responsabilidades

• Backend & Architecture: Design, develop, and maintain RESTful APIs in .NET / ASP.NET Core following modern patterns.
• Frontend (React SPA): Develop reusable UI components and integrate with backend APIs.
• Microsoft Ecosystem Integrations: Integrate Graph, SharePoint Online, and Azure AD / Entra ID.
• Data Management: Model relational data and optimize queries in MySQL.
• DevOps, QA & AI: Work in Azure environments, support CI/CD, test frontend/backend, and leverage AI coding tools.

Conocimientos

Full stack development

Backend development (.NET)

React SPA

RESTful APIs

Microsoft ecosystem (Graph, SharePoint

MySQL

Agile methodologies

Unit/integration testing

English proficiency

Herramientas

.NET

ASP.NET Core

React

Azure

SharePoint Online

MySQL

Jest

Cypress

Git

Descripción del empleo

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.