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Open nowPosted 23 hours ago

Senior Data Engineer – Build the Data Foundation for Greener Rail

Damkier Invest ApS

Where
Ballerup, Denmark
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Your applicationOpen nowSenior Data Engineer – Build the Data Foundation for Greener RailDamkier Invest ApS · Ballerup, Denmark

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This job: posted 23 hours ago

The posting

Cubris · A Hitachi Rail company · Ballerup, Denmark · On-site with flexibility

Would you like to use your expertise in Python, geospatial data and data platforms to make rail operations smarter and more energy-efficient? At Cubris, you will play a central role in developing the data foundation behind solutions that help train operators reduce energy consumption and improve punctuality.

We are looking for an experienced Senior Data Engineer who enjoys shaping technical direction, building solutions and working closely with colleagues across engineering, architecture and product.

Your role

You will help shape the data platform and geospatial model supporting our GreenSpeed® platform and Infrastructure Management System. You will turn complex railway data into a consistent, reliable foundation for our software – covering everything from tracks, signals and stations to gradients, speed limits and temporary restrictions.

Your main responsibilities will be to:

  • Develop our data platform and geospatial model: Define schemas, feature classes, linear referencing using track and chainage, topology rules and railway asset attributes.
  • Build robust Python data pipelines: Ingest, transform and integrate data, and automate workflows using Airflow or similar orchestration tools.
  • Develop spatial storage and cloud solutions: Work with PostgreSQL/PostGIS or equivalent technologies, preferably on Microsoft Azure, and apply graph-based structures where they add value.
  • Ensure data quality and traceability: Validate geometries, topology and attributes, and document data models and workflows with appropriate versioning and change control.
  • Translate requirements into practical solutions: Collaborate with architects, software engineers, product managers and DevOps to deliver solutions that meet today’s needs and evolve with our products.

What you bring

You have substantial hands-on experience in data platform development and architecture, and you enjoy both making technical decisions and implementing them.

We are particularly interested in your:

  • Strong Python skills and experience with scalable data pipelines, data integration and orchestration tools such as Airflow.
  • Experience with GeoPandas, Shapely, GDAL/OGR, PyProj or equivalent geospatial technologies, including LineString and MultiLineString geometries.
  • Knowledge of PostgreSQL/PostGIS or other spatial databases.
  • Experience developing cloud-native data solutions, preferably on Microsoft Azure.
  • Ability to work independently when requirements are evolving and documentation is still taking shape.

We also welcome a strong engineering grounding in industrial systems. You may have developed this through your education or through experience in transport, manufacturing, energy or automation. You understand how software, data and physical infrastructure interact, and how to translate real-world assets and operating conditions into accurate data models. You also appreciate the demands for quality, reliability and traceability in systems used in daily operations.

Experience with QGIS or ArcGIS, graph-based data structures and algorithms, safety-critical systems, railway technology or EBuLa integration would be an advantage.

As a colleague, you share your knowledge, contribute ideas and enjoy solving problems with others. You can balance long-term technical quality with practical delivery.

Why join Cubris?

You will have a real say in technical decisions and product development in a company where ideas can quickly become action. Our flat, agile organisation encourages open dialogue and gives you room to take ownership.

You will join a small, autonomous team backed by Hitachi Rail’s international expertise and resources. Your work will serve a clear purpose: smarter rail operations with lower energy consumption and CO₂ emissions.

The role is based in Ballerup, Denmark. We value close collaboration in the office while offering flexibility.

About Cubris

Cubris is a Danish software company and has been part of Hitachi Rail since 2024. Our award-winning GreenSpeed® platform helps train operators optimise driving, reduce energy consumption and improve punctuality. We develop technology for Driver Advisory Systems (DAS), Automatic Train Operation (ATO) and advanced data analytics.

Interested in joining us?

We would love to hear about your experience, your ideas and what motivates you. Send us your application and CV, or get in touch if you would like to learn more about the role and life at Cubris.

Posting text belongs to the employer. Removal requests: contact us.

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