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MERN Developer

Hybrid in Pozuelo de Alarcón·Full-time·Added today (last checked 20 Oct)

Excelia

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Overview

Work mode: Hybrid, Pozuelo de Alarcón
Contract: Permanent contract, full-time hours
Experience: 2+ years
Benefits: Flexible pay plan

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Skills

This job advert was originally written in Spanish.

Requirements

What we're looking for

Minimum 2 years of experience in MERN development.
Solid knowledge of modern JavaScript (frontend and backend).
Experience with NodeJS, ReactJS (Hooks), and ExpressJS.
Experience with SQL databases (preferably PostgreSQL).
Experience working with MongoDB.
Knowledge of testing with Jest.

Nice to have

Experience with GraphQL (Apollo Server and Apollo Client).
Good command of AI tools applied to development (Cursor, Copilot, Claude, etc.).

Pay & benefits

What you'll get

📝 Stable contract
💰 Salary range according to experience
📊 Flexible compensation
📖 Continuous training
⏰ Flexible schedule

The role

We are looking for a MERN Developer with at least 2 years of experience to join our development team and participate in the construction of modern full-stack applications.

What you'll do

Development of web applications using NodeJS, ReactJS, and ExpressJS.
Design and development of REST and GraphQL APIs.
Implementation of frontend functionalities with ReactJS (Hooks in modern versions).
Integration and management of SQL (PostgreSQL) and MongoDB databases.
Development and execution of unit tests with Jest.
Collaboration with the technical team in the continuous improvement of code and architecture.

Tech Stack 🧩

JavaScript, NodeJS, ReactJS, ExpressJS, PostgreSQL, MongoDB, Jest, GraphQL.

Hybrid Modality: 2-3 days on-site in the Madrid offices

About Excelia

Excelia is a Canadian IT services and consulting company headquartered in Montreal, specializing in cybersecurity, cloud solutions, data analytics, and enterprise software implementation. The company operates across multiple countries, offering services such as managed IT support, security consulting, and implementation of platforms like Microsoft Dynamics 365 and Azure. With a workforce of several hundred employees, Excelia serves clients in various industries, focusing on digital transformation and IT security.

In Spain, Excelia has established a significant presence with offices in Madrid, Barcelona, and Bilbao, and is actively hiring for over 50 roles in cybersecurity, cloud architecture, software development, and data engineering. The company's work culture emphasizes technical expertise and professional growth, making it an attractive option for international professionals with skills in Microsoft technologies, cybersecurity, and data. Excelia offers opportunities for both junior and senior roles, including internships, and supports relocation for qualified candidates.

Founded: 1998
Employees: 500–1,000
Headquarters: Toronto, Canada
In Spain: Madrid, Barcelona, Bilbao
Website: excelia.com

Good to know if you are moving

Excelia has offices in Madrid, Barcelona, and Bilbao, offering multiple locations for international hires in Spain.
The company is actively hiring for over 50 roles in Spain, including junior and senior positions, indicating a strong demand for tech talent.
Excelia provides opportunities for internships and junior roles, which can be a good entry point for international professionals starting their careers in Spain.
The company works with major technologies like Microsoft Dynamics 365, Azure, AWS, and cybersecurity tools, which are valuable skills for the Spanish tech market.
Excelia's global presence may offer opportunities for cross-border projects and career mobility.

In their own words

About the company & team

Excelia is a multinational Consulting, Technology, and Professional Services firm with over 25 years of experience and a presence in more than 50 countries.

All open roles at Excelia