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STT Intern

On-site Madrid, Spain internship

About ENGIE  

ENGIE’s purpose is to act to accelerate the transition towards a carbon-neutral world, reconciling economic performance with a positive impact on people and the planet. With more than 100,000 employees worldwide, our Group relies on 4 Global Business Units (Renewable and Flexible Power, Networks, Local Energy Infrastructures and Supply & Energy Management) to offer competitive low-carbon solutions to our customers.  

About Supply & Energy Management (S&EM)  

With 15,000 employees and a global footprint, ENGIE S&EM delivers yearly 450TWh of low carbon energy to 200,000 B2B and over 20 million B2C customers. S&EM is also #1 player in Green Corporate PPAs, with a global portfolio of 14GW (+4.3GW in 2024). Going forward, S&EM ambitions to take a leading role in the nascent 24/7 carbon free energy market, leveraging ENGIE extensive renewables and flexible asset base (102 GW installed capacity), and S&EM unmatched energy management platform and client’s franchise.  

About S&EM Iberia  

Supply & Energy Management Iberia (“S&EM Iberia”) is a local Business Platform (BP) of ENGIE S&EM Global Business Unit. The Business Platform is active across Energy Management (Asset Optimization and Trading) and Client’s businesses (Wholesale and B2B), with presence in Spain (mature footprint) and Portugal (under development). The entity is composed of 90 highly skilled energy professionals from 12 nationalities, with a solid expertise in Iberian power and gas markets. In 2024, S&EM Iberia provided integrated Energy Management services (short to long term) for ENGIE’s 7.7GW renewables and low-carbon generation asset base in the region (hydro, wind, solar, CCGTs  

We are looking for a highly motivated intern  to join our  Short-Term Power Trading team  in Madrid. This position will focus on  data analysis, modelling and market intelligence  to support trading activities in the Iberian power markets (Spain and Portugal).  

What we offer:  

  • A dynamic and  highly digitalized  environment with  autonomy and ownership  over analytical tasks .  

  • Exposure to the  real-time dynamics  of short-term energy markets.  

  • Participation in the  development of quantitative tools and models  to support trading decisions.  

  • A  learning-intensive experience  within a leading European energy player.  

Your key missions:  

  • Contribute to the development of tools to  monitor and analyze the performance  of trading strategies.  

  • Support the modelling of key drivers and strategies for short-term markets.  

  • Collaborate with traders and data scientists to enhance decision-making data/tools.  

Hard skills:  

  • Solid analytical and numerical skills.  

  • Proficiency in  Python  and/or other data-related tools.  

  • Strong interest in  energy markets and trading .  

  • Background in  engineering, applied mathematics, physics, economics  or similar.  

Soft skills:  

  • Curious, proactive, and eager to learn in a fast-paced environment.  

  • Strong communication skills and a collaborative mindset.  

  • Ability to work independently and manage priorities.  

Languages:  

  • Fluency in  English  is required.  

  • Spanish and/or Portuguese are a plus.  

Committed to Inclusion

At ENGIE, we value and promote diversity and inclusion. We are committed to accelerating the transition to a carbon-neutral economy by bringing together exceptional and diverse individuals who seek, support, and empower the growth of others.

What We Offer

  • Paid internships from 6 months to 1 year.
  • Full-time schedule (Monday to Thursday: full working day; Friday: intensive working day). Summer intensive schedule from Monday to Friday during July and August.
  • 50% hybrid work model after the first three months.
  • Professional growth and future career opportunities.
  • The opportunity to intern in a growing and continuously evolving organization.
  • A dynamic, professional, and positive work environment.
  • Integration into a highly qualified team.
  • State-of-the-art technology offices.
  • Discount at the gym located in the office building.
  • “Chill Out” areas.

ENGIE Is the Right Place for You If...

  • You are looking for a solid professional project with strong career development prospects.
  • You value being part of the world’s leading independent energy group.
  • You want to grow and develop within a dynamic and challenging company.
  • You believe that your work, combined with the efforts of everyone in the company, can and should have a positive impact on the world around us.

If you would like to join an international group that offers a wide variety of career opportunities within a dynamic and promising sector, we look forward to hearing from you!

Source: the employer's careers page. Last checked 2026-10-26. Posted 2026-10-26.

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