Data Engineer in Poland

Andersen is a global software development company with over 18 years of experience supporting businesses worldwide in their digital transformation. Headquartered in Poland, with development centers in multiple countries, they offer end-to-end IT services including custom software development, API integration, system architecture, legacy modernization, and long-term support. They specialize in AI, Machine Learning, Data Science, Big Data, and Visual Technologies and have delivered over 1,000 projects across various industries including Healthcare, FinTech, Logistics, Automotive, Manufacturing, E-commerce, Multimedia & Entertainment.

• 3+ years of experience as a Data Engineer.
• Hands-on production experience on AWS or Databricks.
• Strong SQL skills (BigQuery and/or PostgreSQL) with complex analytical queries in production.
• Production-quality Python programming.
• Experience authoring Apache Airflow DAGs.
• Experience with distributed processing and workflow orchestration in production.
• Experience working with API-first services and streaming or event-driven systems.
• Bachelor's degree in Computer Science, Software Engineering, or related technical field, or equivalent.
• English proficiency from upper-intermediate and above.

Nice to have:

• Background in ad tech, audience measurement, CTV/OTT, ACR, or programmatic data flows.
• Hands-on production experience with GCP.

• Serve as the primary Data Engineer point of contact for report-related questions including data availability, metric discrepancies, and pipeline behavior.
• Write and execute SQL queries (BigQuery, PostgreSQL) to validate report outputs, isolate data anomalies, and confirm fixes.
• Reproduce and document data issues, coordinating with the core Data Engineering team for resolution.
• Support ad hoc data pulls and validation requests related to reporting products.
• Set up and configure cloud environments including AWS S3 buckets, IAM policies, and SFTP endpoints.