In this internship you get the chance to contribute to the transition of ENGIE’s French hydro short-term optimization processes toward algorithmic trading strategies. ENGIE is accelerating the digitalization of its French hydro short term optimization processes, including the management of yearly, monthly, and weekly reservoirs in the Pyrenees and Massif Central. To support this transition toward automated and algorithmic decision-making, new bidding processes and algo based trading strategies will be developed. Therefore we are currently looking for An intern in Algorithmic trading strategies (Hydropower) ! YOUR CHALLENGE as An intern in Algorithmic trading strategies: The student will design and implement Python based bidding strategies for several power markets (Day Ahead, Intraday auctions, and Intraday continuous). You will be in charge of algorithm design, prototyping, backtesting, and integration within ENGIE’s existing IT landscape. The ultimate goal is to produce solutions that can be used operationally. YOUR PROFILE as An intern in Algorithmic trading strategies: You are a final master-year student in Mathematics, Physics, Operations Research, or Engineering and need to fulfill an internship/master thesis as part of your studies. You are interested in the field of data and optimization and have a good first experience in data analytics or applied Machine Learning or numerical modeling, including relevant Python libraries. You are passioned about the energy sector and while not strictly required, an understanding of European power markets is considered a significant advantage. You’re fluent in Dutch or French and can communicate in English. You are mobile and able to come to our headquarter in ENGIE Tower Brussels ( Simon Bolivarlaan 36, 1000 Brussel ). Important note: ENGIE is moving, as from 1st of November 2026 our head office will officially become on 2 Avenue Anspach, 1000 Brussels. Possible starting date: flexible, but the earliest starting from 1st of September 2026. Duration of internship: flexible, 3 months minimum. No remuneration included since this is part of your education. We do offer compensation of your mobility tickets from home to work. YOUR HR CONTACT PERSON and our RECRUITMENT PROCESS: Els Bruyneel The process: CV screening : a relevant study background or proven communication background is a must. First short online introduction with you and our recruiter Els. Here we will test your motivation, personality and fit with our company. Second physical/online meeting with your internship manager. MORE ABOUT US ENGIE, a global leader in low-carbon energy and services, relies on its Global Business Unit Supply & Energy Management (GBU S&EM) to provide reliable, sustainable, and affordable energy to all its customers. This strategic unit optimizes the Group’s and clients’ production assets and designs tailored energy solutions for our 200,000 professional clients and 15 million consumers. The Global Business Unit Supply & Energy Management leverages ENGIE’s assets to deliver secure and sustainable energy to its B2B and B2C customers. It uses its expertise in energy management to provide decarbonized electricity 24/7. Wat als jouw volgende carrière-avontuur begint bij ENGIE? Bij ENGIE word je deel van een internationaal bedrijf dat de energietransitie aanvoert. Met zo’n 97.000 collega’s in 30 landen zijn we actief in de hele energieketen — van de productie van hernieuwbare elektriciteit en groen gas tot flexibiliteitstoepassingen, infrastructuur en energie-oplossingen op maat. Maar ENGIE is meer dan energie. Het is een plek waar je kan groeien, innoveren en helemaal jezelf zijn. We geven onze mensen verantwoordelijkheid, stimuleren hen om continu te leren en bouwen samen met hen aan een cultuur die draait om inclusie, zorg en impact. Jouw morgen begint vandaag. Klaar om jouw stempel te drukken — op de wereld én je loopbaan? Zet vandaag de eerste stap bij ENGIE. WithENGIE