Principal Engineer, Data Infrastructure
Core
Design and ship scalable, reliable, and cost-efficient data infrastructure (streaming, batch, lakehouse) supporting billions of daily events for autonomous AI agents and human users.
Role type
Principal Engineer, Data Infrastructure
Builds
Streaming/batch compute, storage/lakehouse, governance, and access controls for Klaviyo's data platform
Domain
Ecommerce data infrastructure, AI/ML data pipelines
Deliverable
production ML models | infrastructure
Required skills
Distributed data systems, stream processing, batch orchestration, data lakehouse patterns, schema governance, SLO definition, FinOps, AI/GenAI integration
Preferred skills
Regional isolation strategies, privacy-by-design, semantic catalog search, automated data quality monitoring
Technologies
Kafka, Flink, Spark, Airflow, Dagster, Iceberg, Delta, Hudi, Snowflake, BigQuery
Responsibilities
Design core data platform capabilities (ingestion, CDC, orchestration), define and uphold SLOs for data freshness/availability, author ADRs/RFCs and standardize connectors, tune systems for performance/cost, partner with product/ML teams, mentor Staff/Sr engineers
Seniority
Principal, hands-on IC with strategy & mentorship
