Junior Data Scientist

At Vattenfall, we don’t just “do energy”, we exist to help our customers power their lives in ever climate smarter ways and enable a fossil free future. 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! 

At Business Area Markets, business decisions are made around the clock with high frequency, creating vast potential for intelligent automation. 

As our new Data Scientist in the Data Science team, you will join a collaborative and skilled team that drives automation of real business cases through data-driven and Machine Learning-based intelligence. We work in a Scrum setup and have in the past years been very successful in forecasting both electricity prices and electricity consumption. Your work will have direct and measurable impact! 

We offer a strong work-life balance in an organisation known for its deep competence in math, tech, and business - where innovation and improvements often stem from our specialists and business experts 

What You Will Do 

Join a team where your models don’t just sit in notebooks - They power real-time decisions in the energy markets. 

• Machine Learning: Build and operate machine learning models that forecast prices, optimize trading strategies, and drive smarter decisions in volatile energy markets. 
• Automation: Enable intelligent automation of trading and asset optimization by embedding ML into operational systems. 
• Analytics: Combine business understanding with analytical and technical skills to understand and solve real-world challenges. 
• Collaboration: Work closely with team members, stakeholders and domain experts to ensure models are aligned with business needs and continuously improved. 
• Data & Infrastructure: Ensure data is ML-ready and leverage tools like Databricks, Kafka, and Azure ML to support robust model operation. 

What We Are Looking For 

We are after a curious mind who wants to make an impact – Someone who is excited to build end-to-end data science solutions that truly make a difference. 

• A strong interest in learning about the energy markets and how Machine Learning can be used solve the real-world problems we face. 
• Strong communication skills and a collaborative spirit. 
• Python expertise paired with an interest in attaining a software-developer-mindset where you care about good code and stable operation of models. 
• Experience building Machine Learning models - ideally forecasting of time series. 
• Experience, or eager to learn how to bring Machine Learning Models into real world production. 
• An academic degree in Data Science, Computer Science, Engineering, Mathematics, or similar. 
• Fluency in English; Swedish is a bonus. 

We Offer  

• A welcoming work climate with flat hierarchies, appreciation for own initiative, open discussion culture and zero-tolerance for harassment.  
• An International and multi-cultural work environment with energetic colleagues 
• Being part of the wider Analysis community, where we eagerly share knowledge and ideas regarding a wide range analytical topics relevant to the energy market 
• Opportunities and support for professional growth. For example, the encouragement to do internal rotations to other teams and to visit conferences and trainings 
• Flexible working hours, an annual 72 hours reduction of working time and free access to gym and training classes in our Stockholm office and top that off, with the opportunity to work 50% from home.  

At Vattenfall we are convinced that striving for diversity helps to build a more profitable, efficient, and attractive company. Therefore we seek a harmonious balance of employees in terms of age, religion, gender identity & expression, sexual identity, disability and ethnic background. Read more on how we work with diversity and inclusion here: https://careers.vattenfall.com/about-us/diversity-and-inclusion/ 

Location: Stockholm/Solna 

For more information about the position you are welcome to contact recruiting manager Erik Svensson, erik.svensson@vattenfall.com For more information about the recruitment process you are welcome to contact recruiter Peter Blixter, +46 722 37 32 02. 

Trade union representatives Trade union representatives: Simon Salomonsson (Unionen) and Sven Gunnar Gremlin (Akademikerna). To get in contact with the representatives, please call Vattenfall switchboard +46 8 739 50 00. 

We welcome your application no later than 8 September 2025, including CV along with a short motivation (max 100 words) explaining why you are interested in this position. 

Since Vattenfall is part of the Swedish critical infrastructure many of our positions are security classed. If this position is security classed the final candidates can be subject to a security vetting process, according to the Swedish legislation. 

We look forward to receiving your application! 

Vattenfall is a European energy company with approximately 21 000 employees. For more than 100 years we have electrified industries, supplied energy to people’s homes and modernized our way of living through innovation and cooperation. We now want to enable the fossil freedom that drives society forward. To be able to reach this ambitious goal we are looking for talented individuals who, in addition to passion for their own role, also have strong team spirit and want to contribute to supporting a meaningful corporate mission.    

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 BA Markets the mission of the Unit OU Operations is to drive the digital transformation. OU Operations consists of diverse and highly skilled employees from more than 20 countries. We work internationally from our locations in Stockholm, Hamburg, and Amsterdam.