Senior Data Scientist - Flex Trading Strategy Development (f/m/d)
- E.ON Energy Markets GmbH
- Hybrid, Permanent contract
- Full or part time
E.ON Energy Markets GmbH
E.ON Energy Markets GmbH is a subsidiary of the E.ON Group based in Essen. Our main task is to coordinate access to the trading markets for our regional business units, to bundle the associated opportunities and risks and to provide innovative services. Our core competences include portfolio strategies, risk management and data processing. With a presence in various European countries, we are shaping the future of energy.
Diversity counts at E.ON. We welcome all people and believe that differences make us stronger. Become part of our inclusive and diverse corporate culture!
Seize the opportunity to become part of our E.ON Energy Markets GmbH team in Essen at the earliest possible date and apply online now as Senior Data Scientist - Flex Trading Strategy Development (f/m/d). We are seeking a motivated and curious Working Student to join our dynamic team. This is an excellent opportunity for a student passionate about software development and operations to gain hands-on experience with modern technologies such as Kubernetes and testing frameworks.
Senior Data Scientist - Flex Trading Strategy Development (f/m/d)
Job description
Key Responsibilities
- Take ownership of the development and optimisation of quantitative trading strategies for dispatching flexible assets across intraday, day-ahead, balancing, and ancillary service markets.
- Build in collaboration with other teams predictive models for price forecasting, asset availability, imbalance signals, and market spread identification to improve bidding and scheduling decisions.
- Own the trading strategy roadmap, identify, prioritise, and deliver new features and model improvements in iterative cycles aligned with business value.
- Collaborate closely with traders to validate hypotheses, back-test strategies against real P&L, and incorporate trader intuition into model design.
- Scale strategies across geographies and asset classes, adapting to local market rules, grid codes, and asset-specific technical constraints (e.g., degradation, ramp rates, state-of-charge).
- Design and maintain robust data pipelines that feed real-time and historical market, weather, and asset data into modelling and decision engines.
- Monitor live strategy performance, detect drift or anomalies, and implement rapid feedback loops for continuous improvement.
- Communicate results clearly to both technical and non-technical stakeholders, translate complex model outputs into trading insights and strategic recommendations.
- Stay current with developments, and state-of-the-art methods in ML/optimisation relevant to energy trading.
Your Profile
- MSc or PhD in Data Science, Statistics, Mathematics, Physics, Computer Science, Operations Research, or a related quantitative field.
- 10+ years of professional experience applying data science or quantitative modelling in an energy trading, energy tech, or commodity trading environment.
- Proven track record of developing and deploying IT/data-driven solutions that directly support trading decisions or automated dispatch using MLOps tooling and CI/CD for model deployment
- Deep understanding of European electricity markets (EPEX, Nord Pool, or equivalent) including day-ahead, intraday continuous, and balancing mechanisms.
- Excellent programming skills in Python (pandas, NumPy, scikit-learn, LightGBM/XGBoost, or similar); SQL and cloud-based data platforms.
- Experience with reinforcement learning, Bayesian methods, or time-series deep learning (LSTMs, Transformers) in a trading context.
- Strong experience with optimisation techniques (LP/MILP, stochastic optimisation) applied to asset scheduling or portfolio optimisation.
- Excellent communication skills: you can explain a complex model to a trader at 7 AM and defend your methodology in a technical review at 3 PM.
- Autonomous and self-driven: you take ownership of your roadmap items, push them forward without constant guidance, and know when to escalate.
- Strong team player: you thrive in a fast-paced, collaborative environment where traders, developers, and data scientists sit side by side.
E.ON is united in working on the most exciting issue that our generation needs to solve: climate change!
With all our employees and customers, we are a global community of innovators and changemakers, all with the belief that each one of us can make a difference for our environment, for our society and for our children – We shape the future.
To keep you motivated and healthy we are offering you the following benefits:
- Flexibility: hybrid work model, flexible working times allowing great compatibility with your studies
- Flat hierarchies: interdisciplinary and very cooperative working style providing room for own ideas
- Career entry: Find out about our job vacancies first-hand and make valuable contacts - we promote our young talents
- Modern work environment: workplace according to digital and ergonomic standards
- Personal growth: life-long independent learning making use of a broad range of opportunities working with the newest technology and state of the art trainings
- Nutrition & Health: wide selection of fresh meals and drinks in our subsidized bistro and canteen as well as various health offers (e.g. physiotherapy, flu vaccinations, mental health)
- A central location: very good public transport connection, free parking and charging points for e-vehicles
Inclusion
It is important to us that people with disabilities have access to a fair application process, providing them with an opportunity to shine. Therefore, our representative body for severely disabled people will be included in the process from an early stage. Please let us know via the application form if you require technical or organisational adjustments during the application process. We will strive to make the required aids available.
Should you not be able to apply online and want to speak someone in person, please contact your local recruiter.
What else you should know:
| Type of contract: | Permanent contract |
|---|---|
| Employment type: | Full or part time |
| Work Model: | Hybrid |
| Company: | E.ON Energy Markets GmbH |
| Job number: | 244397 |
As long as the position is advertised on our careers page, we are looking for suitable candidates (f/m/d). We look forward to receiving your application!
Rightly seen: we have received multiple awards as an employer!
We are delighted to have received several employer awards that reflect our commitment to a positive, diverse and fair working culture. Get to know us and discover why our employees enjoy working for us.
Any questions?
As long as the position is advertised on our careers page, we are looking for suitable candidates (f/m/d). We look forward to receiving your application!
Application process
Depending on the company and position, the process may vary. So we are providing you with an exemplary overview of the possible steps involved. Your recruiter can help you with any additional questions you may have.
Online application
Your online application is the first step of the application process. All jobs are advertised in our career portal. Create an application profile – it will only take about two minutes and can open the door for you to jobs in all E.ON Group companies worldwide. All applications for advertised jobs at E.ON must be made online.
Interview
In the interview, we get to know each other better. Tell us about yourself and ask us anything that is on your mind: about the position, the team or generally about E.ON as an employer. The interview will take place either in person or online. We look forward to meeting you.
Contract and onboarding
Welcome to the team! We want to make sure that you'll find your way around the company quickly. During your onboarding you’ll learn everything you need to know about E.ON and your new work environment.
We value and foster diversity
Society is diverse – just like our workforce. We’ve proved that fresh ideas and perspectives always emerge when an exciting blend of different people work together. That's why we work hard to become a diversity pioneer.
In 2008, we signed the German Diversity Charter. We are also a member of numerous national and international networks and initiatives that deal with various aspects of diversity.
And we also promote an inclusive culture internally. To name just two examples: In Germany, we run a mentoring programme to prepare female employees for leadership positions. We also launched the CEO Awards for Diversity & Inclusion in 2018. The awards support people and activities at E.ON who are committed to diversity and inclusion.
Behind the scenes
At E.ON we are convinced that good energy connects. Get to know the people at E.ON, find out what we stand for and what topics you can work on with us.
"I always wanted to work for a company with which I could identify"
Marisa, Expert at Corporate Office
When Marissa decided on a trainee programme at E.ON, she wanted to work for a company that promotes sustainability. The fact that her new employer is also international surprised her in a positive way.
Kununu
We have already received several awards for our commitment as an employer - including in the areas of women and family friendliness and as a "Top Company" from the employer rating platform kununu.
Hybrid Working
For the most part, we have a hybrid working model in place where we work partly in the office and partly from home, depending on the task. This supports your work-life balance and protects the environment. We value personal exchange just as much as digital opportunities for collaboration, and we’ll provide you with the equipment and digital tools you need to do your job well. Please contact your recruiter to learn more about the working options of your desired position.
Campus Tour
Get an impression of our campus in Essen.
E.ON is one of Europe's largest operators of energy networks and infrastructure and a provider of innovative energy solutions for around 48 million customers. Around 74,000 employees are constantly working to digitize the energy world, achieve net zero and connect everyone to good energy. To achieve this, we are focusing our actions on sustainability, digitalization, and growth. We strongly believe that differences make us stronger and welcome all people into our inclusive and diverse culture.
What makes E.ON stand out as an employer
Sense of purpose
Together we pave the way for the green energy transition in Europe and enable society and our customers to become C02-neutral.
Together we pave the way for the green energy transition in Europe and enable society and our customers to become C02-neutral.
Sustainability
We make energy cleaner and smarter, giving our customers access to a sustainable supply of electricity and heat.
We make energy cleaner and smarter, giving our customers access to a sustainable supply of electricity and heat.
Winning culture
We promote an inclusive culture where everyone feels valued and where everyone can reach their full potential and make a meaningful contribution to E.ON's success.
We promote an inclusive culture where everyone feels valued and where everyone can reach their full potential and make a meaningful contribution to E.ON's success.
Recognition
We value the contribution of each individual. We recognise individual achievements and reward the successes we deliver as a team.
We value the contribution of each individual. We recognise individual achievements and reward the successes we deliver as a team.
Work Life Balance
Family or career? It doesn’t have to be either/or. Whether flexitime, part-time or hybrid working: At E.ON, you will find the right model for every life situation.
Family or career? It doesn’t have to be either/or. Whether flexitime, part-time or hybrid working: At E.ON, you will find the right model for every life situation.
Health
Benefit from our wide range of health and well-being offers and take advantage of preventative activities.
Benefit from our wide range of health and well-being offers and take advantage of preventative activities.
Network
Joining E.ON opens the door to countless opportunities – regionally and internationally.
Joining E.ON opens the door to countless opportunities – regionally and internationally.
Development
Whether you're looking for a specialist or management career, our individual training programmes will help you develop both professionally and personally.
Whether you're looking for a specialist or management career, our individual training programmes will help you develop both professionally and personally.
Onboarding
We’ll help you learn everything you need to know about E.ON and your new working environment – making your start at E.ON easy.
We’ll help you learn everything you need to know about E.ON and your new working environment – making your start at E.ON easy.
Sense of purpose
Together we pave the way for the green energy transition in Europe and enable society and our customers to become C02-neutral.
Together we pave the way for the green energy transition in Europe and enable society and our customers to become C02-neutral.
Sustainability
We make energy cleaner and smarter, giving our customers access to a sustainable supply of electricity and heat.
We make energy cleaner and smarter, giving our customers access to a sustainable supply of electricity and heat.
Winning culture
We promote an inclusive culture where everyone feels valued and where everyone can reach their full potential and make a meaningful contribution to E.ON's success.
We promote an inclusive culture where everyone feels valued and where everyone can reach their full potential and make a meaningful contribution to E.ON's success.
Recognition
We value the contribution of each individual. We recognise individual achievements and reward the successes we deliver as a team.
We value the contribution of each individual. We recognise individual achievements and reward the successes we deliver as a team.
Work Life Balance
Family or career? It doesn’t have to be either/or. Whether flexitime, part-time or hybrid working: At E.ON, you will find the right model for every life situation.
Family or career? It doesn’t have to be either/or. Whether flexitime, part-time or hybrid working: At E.ON, you will find the right model for every life situation.
Health
Benefit from our wide range of health and well-being offers and take advantage of preventative activities.
Benefit from our wide range of health and well-being offers and take advantage of preventative activities.
Network
Joining E.ON opens the door to countless opportunities – regionally and internationally.
Joining E.ON opens the door to countless opportunities – regionally and internationally.
Development
Whether you're looking for a specialist or management career, our individual training programmes will help you develop both professionally and personally.
Whether you're looking for a specialist or management career, our individual training programmes will help you develop both professionally and personally.
Onboarding
We’ll help you learn everything you need to know about E.ON and your new working environment – making your start at E.ON easy.
We’ll help you learn everything you need to know about E.ON and your new working environment – making your start at E.ON easy.
