Data Engineer

4 tygodni temu

Warszawa, mazowieckie, Polska best HR and PM solutions Pełny etat 26 zł - 880 zł

Client: specialises in providing high-quality global geospatial and POI (Point of Interest) datasets, enriched with advanced machine learning to enable smarter business decisions. Their solutions cover mobility insights, audience segmentation, catchment and foot-traffic analysis across industries such as retail, AdTech/MarTech, FMCG, consulting and market research.


Position: Data Engineer

Location: 100% Remote

Employment Type: B2B - Full-time


Required Technical Skills:

  • Very good knowledge of Apache Spark and PySpark, including performance optimization and tuning.

  • Experience in building, maintaining, and optimizing ETL/ELT processes and large Data Lakes.

  • Practical experience with Google Cloud Platform (GCP), especially:

    • BigQuery

    • DataProc (Spark)

    • Iceberg

    • Cloud Functions, Pub/Sub, Cloud Storage, Cloud Monitoring

  • Experience in ensuring Data Quality, including:

    • data testing and validation

    • anonymization, cleaning, and data transformation

  • Ability to diagnose and resolve data pipeline issues (troubleshooting, maintenance).

  • Experience in performance optimization and managing data reliability and consistency.

  • Knowledge of Python for data engineering and automation.


Nice to Have:

  • Experience in building test data sets.

  • Knowledge of OpenAPI standard.

  • Writing automated tests.

  • Experience with Apache Sedona.


Soft Skills:

  • Ability to collaborate effectively with business and technical stakeholders.

  • Proactive approach to identifying and solving data issues.

  • Focus on quality, performance, and reliability.

  • Strong communication skills and ability to work in complex data environments.


Education & Experience:

  • Higher education (preferred fields: computer science, mathematics, data analysis or related).

  • Experience working as a Data Engineer or in a related role (e.g., Data QA Engineer, ETL Developer).


Offer:

  • Contract: B2B with polish company

  • Salary: up to 210 pln/h

  • 100% remote

  • Polish time zone

  • Polish public holidays

  • Long term cooperation

  • 1 technical interview

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