Senior Data Engineer

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October 22

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Polar

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Fintech • SaaS • API

Polar is a developer-first payments and billing platform that helps software companies monetize digital products and SaaS with minimal code. It provides APIs and SDKs (Next. js, TypeScript, ingestion libraries) for subscriptions, usage-based and ingestion-based billing (including LLM/token consumption), secure checkouts, customer portals, webhook handling, and global merchant-of-record services that handle taxes and compliance. Polar emphasizes open-source, easy integration, and tooling for billing, customer management, and analytics.

1 - 10 employees

Founded 2022

💳 Fintech

☁️ SaaS

🔌 API

📋 Description

• Design, build, and scale the data foundations that power Polar. • Own data architecture end-to-end: pipelines, warehouse, models, and governance. • Build reliable ETL/ELT pipelines for product, billing, and financial data. • Define and enforce data quality, governance, and observability practices. • Design, ship and optimize Metric APIs for developers. • Work with Finance to ensure accurate revenue, payouts, and accounting data flows. • Partner with Growth and Product teams to provide analytics that drive activation, retention, and revenue. • Build internal data APIs, dashboards, and tools for self-serve data across the company.

🎯 Requirements

• 7+ years of experience as a Data Engineer or similar role • Deep expertise with SQL, Python, and modern data warehouses (Snowflake, BigQuery, Redshift, or Postgres) • Experience with ETL/ELT frameworks (dbt, Airflow, Dagster, or similar) • Strong background in data modeling for both analytics and financial systems • Proven track record of ensuring data accuracy, reliability, and trust in high-stakes environments • Comfortable as the first dedicated data hire • Excellent communicator and collaborator. Able to work closely with Finance, Product, and Engineering. • (Bonus) Experience with payments, billing, or financial data systems • (Bonus) Contributions to open source data tools or frameworks.

🏖️ Benefits

• Join a small, talented and engineering-led team across Europe to shape how future software businesses are built. • Focus on shipping at high velocity to serve developers in unlocking their next stage with their business. • Be part of a first dedicated Data Engineering role to avoid a setup where “data lives in a silo”. • As part of the product team, build systems that the entire company can rely on and contribute to. • Enable product, growth, and finance teams to make fast and confident decisions while ensuring data is handled rigorously at scale.