- Warsaw, Masovian Voivodeship, Poland
- Senior
- 5+ years
Senior Data Engineer responsible for building and maintaining large-scale data pipelines, feature engineering, and experimentation infrastructure for a real-time AdTech platform.
Responsibilities
- Write and defend diagnostic SQL queries against large-scale production datasets
- Build and maintain ingestion pipelines for bid, win, and impression logs into BigQuery
- Harmonize fields across independently designed datasets and maintain versioned field mappings
- Develop point-in-time-correct feature tables and aggregation pipelines
- Design and maintain conversion and labeling pipelines with delayed label handling
Requirements
- Nice to have: GCP services
- Nice to have: Dataflow
- Nice to have: Pub/Sub
- Nice to have: GCS
- Nice to have: Beam