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Deutsche Telekom Digital Labs

Senior Data Engineer II

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Description

We are looking for a Data Engineer II with strong hands-on experience in GCP, BigQuery, Python, SQL, and modern data engineering technologies to build and maintain scalable, reliable, and production-grade data platforms. The ideal candidate should have strong expertise in data pipeline development, ETL/ELT, data modelling, pipeline optimization, and production support, with the ability to work effectively with large-scale datasets on GCP.


Responsibilities:

  • Design, develop, and maintain scalable data pipelines on GCP.
  • Work with large-scale datasets using BigQuery and other GCP data services.
  • Develop robust ETL/ELT pipelines for batch and incremental data processing.
  • Implement idempotent and reliable data processing workflows.
  • Build and maintain workflows using Airflow / Cloud Composer.
  • Develop data transformation pipelines using Dataform/dbt.
  • Work with Dataflow / Apache Beam for distributed data processing.
  • Work with Dataproc, Spark, and PySpark for large-scale data processing.
  • Optimize data pipelines for performance, scalability, and cost efficiency.
  • Implement data quality checks, testing, and monitoring to ensure reliable data products.
  • Troubleshoot production issues and provide effective production support.
  • Collaborate with engineering and business teams to deliver high-quality data solutions.


Requirements:

  • Strong hands-on experience with GCP and BigQuery.
  • Advanced SQL and Python, Airflow / Cloud Composer, Dataform / dbt, Dataflow / Apache Beam, Dataproc / Spark / PySpark.
  • Strong understanding of ETL/ELT and data pipeline development.
  • Experience with batch, incremental, and idempotent processing.
  • Good understanding of data modelling and data quality.
  • Experience in pipeline optimization and troubleshooting.
  • Hands-on experience with Git, CI/CD, and testing.
  • Strong production support and problem-solving skills.
  • 4-7.5 years of relevant data engineering experience.
  • Strong experience building production-grade data pipelines.
  • Excellent SQL and Python skills.
  • Strong hands-on experience with the GCP data ecosystem, particularly BigQuery.
  • Ability to work with large datasets and optimize data processing workflows.
  • Strong analytical and troubleshooting skills.
  • Good understanding of software engineering best practices, including version control, CI/CD, and testing.
  • Strong communication and collaboration skills.

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