Data Engineer

Overview

White Circle is an AI safety company that develops a platform for the safety, reliability, and optimization of AI systems. The organization utilizes natural-language policies to automatically test, enforce, and improve AI model behavior at scale.

Responsibilities

• Design, build, and maintain reliable production data pipelines for ingestion, transformation, and orchestration
• Model and structure data in the warehouse to ensure it is clean, documented, and useful for engineering, product, and research teams
• Own data infrastructure, including schema design, migrations, performance, and cost management
• Provide data support to GTM engineers by delivering curated, enriched company and account data
• Integrate and route diverse data sources into the warehouse, including internal product events and third-party feeds
• Build data‑extraction jobs and web scraping as needed
• Improve data quality, observability, and documentation
• Diagnose and resolve pipeline issues
• Execute data and infrastructure tasks to enhance system robustness

Requirements

• Solid experience as a data engineer building and running production pipelines and data warehouses
• Strong proficiency in SQL and Python
• Experience designing data models for collaborative use
• Hands‑on experience with a modern data stack, including relational databases, columnar/analytics stores, orchestration, and transformation tools
• Experience with PostgreSQL or similar systems
• Production mindset with a focus on reliability, migrations, performance, and cost
• Ability to work independently and own problems end‑to‑end in an early‑stage environment
• Fluent English
• Nice to have: Experience with streaming/eventing (e.g., Kafka)
• Nice to have: Dataset versioning
• Nice to have: dbt
• Nice to have: Modern ETL tools (Fivetran, Airbyte, dlt)
• Nice to have: AWS (Athena, Glue, S3)
• Nice to have: GTM/CRM data workflows
• Nice to have: Web‑scraping
• Nice to have: Systems languages like Rust

Benefits

• Relocation support is available
• Paid time off in line with local regulations
• Best medical insurance in France
• Provision of all necessary hardware, tools, and services
• Covered subscriptions for AI agents and IDEs
• Team off‑sites twice a year