Ads Targeting Data Engineer, Ads Core

Monetization Technology teams are building the next-generation monetization platforms to help millions of customers grow their businesses, utilizing our products like TikTok. Our team develops a wide variety of advertisements for numerous uses including feeds, live streaming, branding, measurement, targeting, search, vertical solutions, creative solutions, and business integrity.
What You'll Do:
- Own foundational targeting data and platform capabilities with high availability, accuracy, freshness, and scalability:
- Base targeting dimensions: gender, age, geo, device, language, network, etc.
- Audience & tagging system: definitions, hierarchy, refresh strategy, backfills, cross-device unification
- Design and implement large-scale batch/stream pipelines: ingestion, ETL, aggregation, profile generation, tag updates, external serving
- Build a reliable data quality framework: validation, lineage, monitoring/alerting, SLAs, automated backfill and repair
- Provide standardized capabilities for ads delivery/strategy systems:
- Audience package generation/management, tag query services, foundational targeting rule engine, access control & auditing
- Collaborate with ML/product/compliance to ensure stable production rollout and iterative improvements (performance/reach/cost/UX)
Requirements:
Minimum Qualifications:
- BS+ in CS/SE/Data Engineering or related fields
- 3+ years (adjustable) in data engineering/platform roles; able to own critical pipelines end-to-end
- Strong SQL and data modeling; hands-on with big data stack (Spark/Hive/Kafka/Flink/Airflow, etc.)
- Proficient in Java/Scala/Python; solid engineering and performance tuning skills
- Strong ownership of data governance, definitions, quality and stability
- Effective cross-functional communication and execution
Preferred Qualifications:
- Experience in ads/recommender data platforms: user profiles, tagging, audience segmentation, DMP/CDP
- Real-time profile or low-latency serving at scale (high QPS, caching/consistency)
- Privacy/compliance implementation experience (minimization, anonymization, access control, auditing)