Aldesa is a leading global construction and infrastructure group headquartered in Madrid, specializing in civil engineering, building, renewable energy, and industrial projects. With over 50 years of history, the company has evolved into a major international player, particularly after becoming part of the China Railway Construction Corporation (CRCC) in 2020. It operates across several continents, managing complex large-scale projects ranging from high-speed rail networks to advanced data centers.

In Spain, Aldesa maintains a robust presence with offices and project sites distributed throughout the country, including Madrid, Barcelona, and Zaragoza. For international professionals, the company offers opportunities in highly specialized technical fields such as railway engineering, industrial installations, and renewable energy. Its integration into a global conglomerate like CRCC creates a multicultural environment where technical expertise is highly valued, often requiring coordination across international teams.

Founded in 1969 in Madrid, Aldesa grew into one of Spain's largest construction groups. In 2020, it underwent a significant transformation when China Railway Construction Corporation (CRCC) acquired a majority stake to expand its European and Latin American presence.

Administrative Assistant OSH - Data Center

Aldesa

This job was originally posted in Spanish and automatically translated to English. You'll most likely need Spanish to apply.

Job Description

🚀 Are you passionate about administrative management in construction projects? Join Aldesa and grow with us!

📍 Location: Madrid
🛠 Position: OSH Administrative Assistant

At Aldesa, every day is an opportunity to learn, innovate, and overcome new challenges. We are looking for an OSH Site Administrative Assistant to collaborate with us on a high-budget data center construction project with high technical and execution standards. If you have experience in site administrative management, we want to meet you! 👀

The project includes:
• Deep foundations
• Prefabricated concrete and steel structures
• Technical facades
• High-demand interior finishes
• Critical installations
• Execution under BIM, LEED standards and international certifications

📋 Your responsibilities:
• Site administrative management
• Verification and control of OSH and labor-social documentation.

Basic knowledge of mandatory documentation regarding Occupational Safety and Health (OSH) in construction works.
Documentary management and control of OSH for workers, companies, and subcontractors on site.
Handling of coordination and document management platforms such as: Nalanda, Metacontratas, Dokify, Twind, 6xonecta, Construcred
Review and monitoring of preventive documentation for site access and coordination.

🎯 Requirements:
• Training in Administration or similar. Training in the OSH area is valued.
• Minimum of 2-3 years of experience in site administration, preferably in large-scale projects
• Knowledge of SAP and management tools

🎁 What do we offer?
✨ Stability in a solid and pleasant work environment
📚 Continuous training adapted to your role
💳 Flexible remuneration (transport, restaurant, health insurance, childcare, and training)

⭐ Join Aldesa
At Aldesa, you will not only find a job, but a place to grow 🌱
Discover our PVP - People Value Proposition, with all the experiences, benefits, and opportunities that make working with us unique 👉 Find out more here

💡 Don't miss the opportunity to be part of an innovative project and build your future with Aldesa!

🌍 Aldesa Pride
We have been recognized in the ENR Top 250 International Contractors 2025 ranking, occupying position 126 worldwide. This achievement is possible thanks to the talent, commitment, and professionalism of our team 👏

🤝 Commitment to diversity
At Grupo Aldesa, we promote an inclusive, respectful, and diverse environment. We guarantee equal opportunities without discrimination based on age, sex, gender identity, sexual orientation, religion, ethnic origin, disability, marital status, or any other condition protected by law. 💚 We believe in people and in the value of every talent.

View original advert (Spanish)

🚀 ¿Te apasiona el mundo de la gestión administrativa en proyectos de construcción? ¡Únete a Aldesa y crece con nosotros!

📍 Ubicación: Madrid
🛠 Posición: Auxiliar Administrativo/a PRL

En Aldesa, cada día es una oportunidad para aprender, innovar y superar nuevos retos. Estamos buscando un/a Auxiliar Administrativo/a de Obra PRL para colaborar con nosotros en un proyecto de construcción de centro de datos de gran volumen económico, con altos estándares técnicos y de ejecución. Si tienes experiencia realizando gestión administrativa de obra, ¡queremos conocerte! 👀

El proyecto incluye:
• Cimentación profunda
• Estructura prefabricada de hormigón y metálica
• Fachadas técnicas
• Acabados interiores de alta exigencia
• Instalaciones críticas
• Ejecución bajo estándares BIM, LEED y certificaciones internacionales

📋 Tus responsabilidades:
• Gestión administrativa de la obra
• Verificación y control de documentación PRL y socio laboral.

Conocimientos básicos de documentación obligatoria en materia de Prevención de Riesgos Laborales (PRL) en obras de construcción.
Gestión y control documental de PRL de trabajadores, empresas y subcontratas en obra.
Manejo de plataformas de coordinación y gestión documental como: Nalanda, Metacontratas, Dokify, Twind, 6xonecta, Construcred
Revisión y seguimiento de documentación preventiva para el acceso y coordinación en obra.

🎯 Requisitos:
• Formación en Administración o similar. Valorable formación en el área de PRL.
• Experiencia mínima de 2-3 años en administración de obra, preferiblemente en proyectos de gran volumen
• Conocimientos en SAP y herramientas de gestión

🎁 ¿Qué te ofrecemos?
✨ Estabilidad en un entorno de trabajo sólido y agradable
📚 Formación continua adaptada a tu rol
💳 Retribución flexible (transporte, restaurante, seguro médico, guardería y formación)

⭐ Súmate a Aldesa
En Aldesa no solo encontrarás un trabajo, sino un lugar donde crecer 🌱
Descubre nuestro PVP - People Value Proposition, con todas las experiencias, beneficios y oportunidades que hacen único trabajar con nosotros 👉 Conócelo aquí

💡¡No dejes pasar la oportunidad de formar parte de un proyecto innovador y construir tu futuro con Aldesa!