Freelance Senior Data Scientist
Project Details
* Start: Immediate / flexible within the next weeks
* Duration: 6 months+ (extension very likely)
* Location: Remote within Germany
* Rate: €100–125 per hour
About the Project
We’re working with a leading energy & tech client on high-impact optimisation and forecasting projects. This is a chance to join a highly skilled team tackling complex challenges around renewable integration, asset optimisation, and large-scale data systems.
The Role
We’re looking for a freelance data scientist / mathematical optimisation specialist who can work independently and deliver production-ready solutions. You’ll be embedded in a project team with direct impact on trading, investment, and operational strategies.
What You’ll Do
* Build and improve mathematical optimisation models (portfolio, storage, trading strategies)
* Enhance forecasting frameworks for short- and mid-term horizons
* Engineer data pipelines and APIs, ensuring robustness and reproducibility
* Transition legacy code into scalable, modern Python solutions
* Work across the full stack: databases, cloud platforms, CI/CD, containerisation
* Deliver clear, business-focused insights and documentation
What We’re Looking For
* Strong background in energy sector / trading / data science
* Expert-level Python skills (NumPy, pandas, Pyomo, scikit-learn, FastAPI, etc.)
* Proven freelance/consulting experience with energy, trading, or logistics clients
* Familiarity with Azure / AWS, SQL / GraphQL, Docker, CI/CD
* Able to challenge assumptions and translate technical insights into business value
* Business-fluent English (German a plus, but not required)