Senior Data Engineer

Are you ready to embark on an exciting journey with Coreso, a dynamic and fast-paced company at the forefront of the European energy landscape? As a Regional Coordination Center (RCC), Coreso plays a crucial role in coordinating high-voltage electricity flows for European Transmission System Operators (TSOs), ensuring the security of electricity supply on a regional basis.

Your new career in Coreso

Coreso is a dynamic and fast-paced company situated in the heart of the European headquarters in Brussels. We are currently seeking a senior data engineer to translate the business requirements into insights by building data pipelines and modelling the data to be able to use in reporting or for training machine learning models. You will also actively support the existing pipelines and adapt to the new tools when and if necessary.

Let us give you a preview of your future mission!

• Data Engineering & Pipelines
  You design, build, and maintain scalable ETL/ELT pipelines in Python, ensuring data quality, validation, deduplication, schema consistency, and robust time‑series processing for grid‑related datasets.

• Workflow Orchestration
  You develop and maintain automated workflows using Apache Airflow, guaranteeing reliable daily, weekly, and monthly data delivery for mission‑critical reporting.

• Data Modelling & Transformations
  You use dbt to build modular and testable transformations, write advanced SQL for modelling and analytics, and create optimized models for analytical and regulatory reporting workloads.

• Platform & Infrastructure
  You work with Docker to containerize data components, use Git for version control and collaboration, and contribute to CI/CD improvements for the data platform.

• Database & Storage Management
  You maintain and tune PostgreSQL databases, focusing on performance optimization, indexing, and partitioning.

• Collaboration & Support
  You work closely with business teams to translate needs into technical solutions, ensure timely delivery of operational and regulatory reports, and communicate constructive feedback.

• Documentation & Continuous Improvement
  You document data flows, models, and processes while staying up to date with modern data engineering practices, including automation, reliability, observability, and data governance.

What are we looking for?

• Master’s degree in Computer Science, Information Technology, Engineering, or equivalent practical experience

• 5+ years experience building data pipelines in Python.

• Strong experience with Apache Airflow, dbt, SQL, and PostgreSQL.

• Proven experience with Docker in development/deployment workflows.

• Strong background in time‑series analytics (resampling, interpolation, rolling windows, time‑based joins).

• Solid understanding of data modelling, ELT, and data quality principles.

• Experience with at least one BI tool (Tableau, Power BI, etc.).

• Excellent analytical skills, communication skills, and ability to work cross‑functionally.

• Team‑oriented mindset with the autonomy to own complex pipelines.

Our offer

• A full-time permanent contract in a stable, multilingual, and international environment.

• We provide competitive salary package complemented by extra-legal benefits e.g., insurance, mobility solutions, pension plan, 35 holidays/year...

• We offer remote work policy to support a healthy work-life balance (60-40% office – home)

• Our offices are in the heart of the European district of Brussels, easily accessible by public transport.

• Fun activities throughout the year like after-works, teambuilding's and more

If you are excited about becoming an integral part of our team and driving positive change in the energy industry, we look forward to welcoming you to Coreso. Join us on this thrilling journey and seize the opportunity to grow both professionally and personally.