Working Students - Data Science (f/m/d)

For our Business Area Markets we are now looking for a

Working Student - Data Engineer (f/m/d) 

for our office in Hamburg – ElbSide

Do you want to develop a sound understanding of electricity market fundamentals and contribute to the development of our fundamental models? Become a working student at Vattenfall and kickstart your climate smarter career. Together with us you will contribute to a fossil free future.

Vattenfall is now looking for the right person to fill the position as a working student - data engineer in Business Area Markets.

Key responsibilities and duties

• Assist in creating, customizing, and maintaining ETL/ELT pipelines to ensure automated and reliable data flows from various sources to central repositories.
• Create scripts and automation for data integration and transformation using python
• Monitor pipelines for failure, investigate and implement solutions
• Work directly with Data Analysts to understand their data requirements and translate them into technical solutions.
• Document data engineering processes, schemas, and business logic to facilitate knowledge sharing within the team
• Engage in agile concepts such as code reviews, pair programming, and sprint retrospectives to ensure code quality and team alignment. 

Our ideal Working Student Data Science:

• You are studying mathematics, engineering sciences, physics, economics, computer science or a comparable course of studies and are at least in the third semester of your Bachelor's degree or in your Master's degree
• You are interested in electricity market fundamentals
• You have experience with Python and analytic libraries (Pandas, Numpy). You enjoy programming and are interested in making dashboards in PowerBI
• Fluent in English
• Enthusiastic about working close with other members of the team – sharing ideas and developing together
• Ability to work independently and prioritize own work, taking initiative to improve processes when required
• Nice to have:
  • knowledge about docker images and containers
  • knowledge about any cloud platform (preferably azure)
  • Knowledge about timeseries data format
  • Experience with any orchestration tool

• Start date: As soon as possible
• Working time: 20 hours per week, up to 37.5 hours per week (full-time) in vacation time
• Minimum duration: 6 months
• Location: Elbside – Amerigo-Vespucci-Platz 2, 3 minutes walk from Elbbrücken U&S-bahn station
• Working laptop is provided
• Supervision of final thesis possible by arrangement 

Please send us your application including a CV, current grade reports and your certificate of enrollment no later than 15.01.2026.

For more detailed information regarding the recruitment process, please contact our recruiter Sabrina Parsons: sabrina.parsons@vattenfall.de

We conduct interviews on an ongoing basis. Therefore, we encourage you to apply as soon as possible. We look forward to your application!

At Vattenfall we are convinced that diversity contributes to build a more profitable and attractive company and we strive to be good role model regarding diversity. Vattenfall works actively for all employees to have the same opportunities and rights regardless of gender, ethnicity, age, transgender identity or expression, religion or other belief, disability or sexual orientation.

The security of Vattenfall and its employees is essential. For that reason, a pre-employment screening will be part of your recruitment process. The screening is based on the role you will fulfil within Vattenfall. The screening will be performed by a third party, DISA.

We look forward to receiving your application!

Vattenfall is a leading European energy company driving the transition to a sustainable energy system. We have been electrifying industries, powering homes and transforming life through innovation for more than 100 years and now have a mission of working for fossil freedom. We employ around 20,000 people mostly in our core markets in Sweden, Germany, the Netherlands, Denmark, and the UK.

At Vattenfall, we don’t just “do energy”, we exist to help our customers power their lives in ever climate smarter ways and free from fossil fuel within one generation. If you are looking for interesting challenges and the opportunity to be part of this change, then join our diverse and talented team and make a difference!

Within Vattenfall, Business Area (BA) Markets optimizes assets and effectively sources and trades commodities, thus ensuring best value for both Vattenfall and our customers. BA Markets is active across Europe with around 450 professionals working from Sweden, Germany, the Netherlands, and the UK.

In Fundamental Analysis we provide fundamental forecasts to support decision making regarding investment decisions, PPA pricing, asset dispatch and planning, and potential trading strategies, in order to support Vattenfall becoming fossil free within one generation.

Working at Vattenfall means more than 'just' having an interesting job in a result-oriented culture. Here you will be part of a challenging, complex and international work environment.