Python-Jobs in Spanien

Veolia is a global leader in environmental services, operating across all five continents with nearly 218,000 employees. An expert in water, energy, and waste management, the Group designs and implements innovative solutions for decarbonisation, depollution and resource regeneration to support communities and industries in their ecological transformation.

Ambitious graduates and young professionals: Ready to challenge yourself and accelerate your career growth? Launch your international journey with a world leader in ecological transformation! Your passport to a thrilling career awaits. Join us and make a global impact!

• Highly sought‑after international expertise
• Innovative and sustainable projects
• Multicultural teamwork
• Worldwide networking

The VIE will join Veolia Engineering & Consulting's Spanish team in Madrid. He/She will contribute to the development of energy studies and modelling projects related to power systems and energy transition in developing countries.

Our Spanish subsidiary is a consulting firm specializing in the long‑term development and climate impacts of global power, natural gas, and water infrastructure. The company brings together expertise in economics, finance, law, data analytics, electrical and power engineering, and energy systems.

• Contributing to energy trajectory modelling to analyse long‑term energy system evolution and optimisation of portfolio planning
• Participation in medium/long term power sector planning, contributing to develop optimisation/dispatch models of electricity systems to assess the investments and operational costs associated with different generation or transmission expansion options, using Optgen‑SDDP tools.
• Contributing to optimisation studies for the technical evaluation of Battery Energy Storage Systems (BESS) and studying the economical profitability of such assets on electricity systems.
• Participating in modeling studies of electrical transmission and distribution networks using DigSilent PowerFactory.
• Participating in modernisation programs for electrical systems and the deployment of smart grid technologies.
• Supporting data analysis and visualisation through tools such as Power BI, Excel, or programming languages (Python, etc.).
• Supporting diagnostic missions on analysis of public transmission / distribution networks in international contexts.
• Contributing to the preparation of technical proposals in response to international tenders.
• Collaborating with Veolia teams and international clients on projects funded by international financial institutions (World Bank, EBRD, Development Agencies, etc.) across Africa, Europe, South America, and the Caribbean.
• The VIE will be required to travel internationally as part of consulting missions and project execution (up to a maximum of one week per month on average).

Educational background: Master’s degree (or equivalent) from an engineering school with a specialization in energy and a good understanding of the energy markets.

Previous experience: 1 year of prior experience (internship or professional) in the energy or power systems sector. A first international experience would be appreciated.

• Solid academic knowledge of electricity production and distribution systems (interconnected networks and decentralised infrastructures).
• Experience with power dispatch tools (SDDP, Plexos or equivalent) and/or network modelling tools (PowerFactory or equivalent) would be a plus.
• Proficiency in Microsoft Excel, familiarity with Google Suite, and interest in data analysis and visualisation tools (Power BI, Python, etc.).

Fluent in English, good level in Spanish, and French (mandatory).

Be part of a forward‑thinking team focused on ecological transformation. Work with global experts in water treatment and contribute to environmental sustainability. If you join us, you join a company that values knowledge sharing and personal development but most importantly you join a company where we pride ourselves on our friendly, open and collaborative atmosphere.

We can offer you freedom in return for responsibility. We are convinced that the right person for this job will have an exciting future! This role offers potential for future growth into various positions for the right candidate.

Madrid, Spain

18 months (subject to renewal up to 24 months)

2 467,31 € net/month (according to the rates of October 2025)

30 days' leave per 12 months / Tax‑free / French pension contribution

As an inclusive company, Veolia is committed to diversity and gives equal consideration to all applications, without discrimination.