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# Principal Data Engineer

- **Company:** Booking.com
- **Location:** Amsterdam, Netherlands
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Artificial Intelligence, Cloud Computing, Code Review, Data Architecture, Information Engineering, Data Infrastructure, Python (Programming Language), Scala (Programming Language), Apache Spark, Apache Kafka, Marketplace
- **Published:** August 13, 2026
- **Apply:** https://www.nationalevacaturebank.nl/vacature/9bb86501-4da0-4036-93dc-d5a8515a81a2/principal-data-engineer

## About the Role

+ Bewezen expertise in het bouwen van grote data-systemen (Spark, Kafka, cloud-platforms)
 + Diep inzicht in data architectuur, data modeling en performance optimization
 + Sterke programmeerprogramma-skills in Python, Java of Scala
 + Ervaring met AI/ML pipelines is een plus
 + Leiderschap en het vermogen om technische visie uit te dragen

## Description

+ Ontwerpen en implementeren van data-pipelines die real-time inzichten leveren voor ons Marketplace
 + Leiderschap geven aan data engineering-initiatieven en technische keuzes bepalen
 + Samenwerken met data scientists en product teams om AI/ML-modellen in productie te brengen
 + Zorgen dat data-infrastructuur betrouwbaar, schaalbaar en kostenefficiënt blijft
 + Code reviews uitvoeren en engineering excellence standaarden bepalen


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- [Let's Get Aggregated: Custom UDAFs in Spark  ](https://www.wearedevelopers.com/videos/1649-let-s-get-aggregated-custom-udafs-in-spark)

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