Job Description

Do you want to shape the future of energy markets through quantitative modelling? We are looking for a Quantitative Developer to join Fortum Market Intelligence’s Quantitative Modelling team at our headquarters in Espoo.

About the role

Our team builds advanced tools and models that support market analysis, asset optimization, and pricing of Fortum’s PPA contracts. You will work on short-term modelling for day-ahead and TSO markets, long-term market and asset modelling, and data visualization solutions. We welcome applications from both experienced professionals and talented early-career developers, and the final job description will be tailored to reflect your skills and experience.

About you

Your Impact:

• Develop state-of-the-art market intelligence tools that drive Fortum’s strategic and operative decisions.
• Work with large datasets to uncover insights into the energy transition.
• Collaborate with experts to forecast market behavior across time horizons.

What We’re Looking For:

• Strong programming skills, preferably Python.
• Experience in quantitative modelling and/or operations research, preferably within the domain.
• Understanding of the energy markets and interest in the energy system transition.
• Ability to work collaboratively with a curious, proactive, and solution-oriented mindset.
• Relevant degree in engineering, economics, or similar.
• Experience in renewables, batteries, ancillary markets, as well as Databricks and PowerBI, can be considered an asset.
• Fluent skills in English

We offer you

We offer you a unique opportunity to work at the heart of the energy transition, gain exposure to data-driven market analysis in a leading Nordic energy company, and thrive in a collaborative environment that supports your professional growth.

At Fortum, we believe in a better future and want to be involved in shaping it. Our workplace is a safe place, both physically and mentally. You will grow with professional colleagues, being trusted and free to challenge yourself. We offer comprehensive benefits, flexible working hours, and hybrid work model to support your productivity, development and wellbeing. We are committed to build diverse teams where everyone feels included and is treated equally. 

More information about our culture and benefits can be found  here

Espoo office is a smoke-free workplace.

Interested?

Submit your application by 8.2.2026 at the latest. If you would like to hear more about the position, please contact Jussi Mäkelä, via phone +358452074177or through e-mail jussi.makela@fortum.com

To be selected for the position, the applicant must go through background clearance and a health examination including drug testing.  

We are Fortum
Fortum is a Nordic energy company. We generate and deliver reliable energy to our customers and the Nordic energy system while at the same time helping industries decarbonise their processes and grow. Our core operations comprise efficient and best-in-class low-carbon power generation, customer services, and heating and cooling. Fortum’s power generation is already 99% from renewable or nuclear sources with one of the lowest specific CO2-emissions in Europe. We are guided by our ambitious SBTi-validated emission reduction targets on our way towards net-zero by 2040. For our ~4,500 employees, we commit to be a safe and inspiring workplace. Fortum's share is listed on Nasdaq Helsinki.  fortum.com