Principal Engineer, Data Infrastructure

ABOUT THE ROLE We are seeking a highly experienced Principal Engineer to lead the technical direction and delivery of Klaviyo's data platform. As a key member of our engineering team, you will be responsible for designing and shipping systems that are fast, reliable, cost-efficient, and safe for autonomous access. Your expertise will be crucial in creating paved roads for data producers and consumers, human and agent alike. WHAT YOU'LL DO As a Principal Engineer, you will be responsible for designing and implementing core data platform capabilities, including event ingestion, stream processing, batch orchestration, data lake/warehouse patterns, catalog/lineage, governance, access, and compliance. You will also define and uphold Service Level Objectives (SLOs) for data freshness, availability, and correctness, and author/run readiness reviews, incident response, and post-incident learning for your domain. You will work closely with product teams and analytics/ML to expose the right abstractions and unblock customer value quickly. Additionally, you will contribute high-quality code and reviews, mentor Staff/Sr. engineers across pillars through example and enablement, and use AI to streamline data workflows. WHAT YOU'LL NEED To be successful in this role, you will need to have 10+ years of experience building and operating distributed data systems, including experience with Kafka/PubSub, Flink/Spark/Beam, Airflow/Dagster, Iceberg/Delta/Hudi, Snowflake/BigQuery, and object storage. You will also need to have technical expertise in data ingestion/CDC, stream processing, batch orchestration, lakehouse patterns, catalog/lineage, governance, and access controls, measured by freshness, availability, and correctness SLOs. WHY REMOTE As a remote employee, you will have the flexibility to work from anywhere and be part of a global team that values diversity and inclusion. You will have the opportunity to work on complex technical challenges and contribute to the growth and success of Klaviyo's data platform. BENEFITS * Competitive salary range: $180,000 - $250,000 per year * Flexible work schedule and remote work options * Comprehensive health plan * Parental leave and education stipend * Life insurance and equipment stipend * Opportunities for professional growth and development * Collaborative and inclusive work environment