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Deutsche Telekom Digital Labs

Posted 27 Aug 2026

Lead Data Engineer

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Employment
Full time
Team
Data Science & Analytics
Posted
27 Aug 2026

About the role

Looking for a hands-on Lead Data Engineer to build scalable data pipelines and data products using Data Mesh principles. This is a core engineering role involving end-to-end system design, development, and optimisation.


Responsibilities:

  • Build and maintain batch and real-time (streaming) data pipelines.
  • Develop domain-driven data products and ensure data quality and reliability.
  • Implement data contracts, governance, and observability.
  • Optimise query performance and cost.
  • Work closely with business and domain teams.


Requirements:

  • 7+ years in Data Engineering.
  • Strong SQL and Python.
  • Experience with data modelling (star schema, normalisation).
  • Hands-on with Apache Airflow (or similar).
  • Experience with large-scale data processing.


Streaming / Real-Time (Important):

  • Hands-on experience with real-time streaming pipelines.
  • Tools like Apache Kafka, Spark Streaming, or similar.
  • Understanding of event-driven architecture and Kappa architecture.


Tech Stack (Flexible):

  • Any Data Warehouse (Snowflake / BigQuery / Redshift, etc. )
  • Spark / PySpark.
  • dbt / Dataform or similar.
  • Object storage (S3 or similar).
  • Hands-on experience with AWS (S3 Redshift, EMR, Glue or similar services).


Good to Have:

  • Data Mesh / Data Product experience.
  • Strong ownership and independent working style.
  • Experience working with analysts/stakeholders.

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