Data Engineer in Poland

Andersen is hiring a Data Engineer in Poland for a project developing large-scale analytics solutions and data platforms that transform audience and media data into actionable insights.

The company is a global technology provider delivering data analytics and AI-powered solutions that help organizations better understand customer behavior, optimize marketing performance, and make informed business decisions.

The project is focused on developing data-driven audience measurement and advertising analytics solutions powered by connected-device and media consumption data.

Responsibilities:

- Serving as the primary DE point of contact for report-related questions, including data availability, metric discrepancies, and pipeline behavior. 

- Writing and executing SQL queries (BigQuery, PostgreSQL) to validate report outputs, isolate data anomalies, and confirm fixes. 

- Reproducing and documenting data issues, coordinating with the core DE team for resolution. 

- Supporting ad hoc data pulls and validation requests tied to reporting products. 

- Setting up and configuring cloud environments required for partner data delivery, including AWS S3 buckets, IAM policies, and SFTP endpoints. 

Must-haves:

- Experience as a Data Engineer for 3+ years.

- Hands-on production experience on AWS, or Databricks. 

- Strong SQL (BigQuery and/or PostgreSQL) — complex analytical queries in production. 

- Python at production quality. 

- Apache Airflow DAG authoring. 

- Distributed processing in production; workflow orchestration. 

- API-first services; working experience with streaming or event-driven system. 

- Bachelor's degree in Computer Science, Software Engineering, or a related technical field, or equivalent.

- Level of English – 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 on GCP.