data engineer in audience measurement

Andersen is a global technology provider delivering data analytics and AI-powered solutions that help organizations understand customer behavior, optimize marketing performance, and make informed business decisions. The company develops data-driven audience measurement and advertising analytics solutions using connected-device and media consumption data.

• 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 in BigQuery and PostgreSQL to validate report outputs, isolate data anomalies, and confirm fixes;
• Reproduce and document data issues and coordinate with the core Data Engineering team on resolution;
• Support ad hoc data pulls and validation requests related to reporting products;
• Set up and configure cloud environments for partner data delivery, including AWS S3 buckets, IAM policies, and SFTP endpoints;
• Write and maintain Airflow DAGs in Python to orchestrate ingestion workflows, including scheduling, alerting, and dependency management;
• Coordinate with external partners on file format specifications, delivery schedules, and test dataset requests;
• Execute match tests to validate identity resolution across ingestion pipelines;
• Identify and flag data quality issues in partner files before they reach production pipelines.

• 3+ Years of experience as a Data Engineer;
• Hands-on production experience with AWS or Databricks;
• Strong SQL skills with BigQuery and/or PostgreSQL, including complex analytical queries in production;
• Production-quality Python skills;
• Experience authoring Apache Airflow DAGs;
• Experience with distributed processing in production and workflow orchestration;
• Experience with API-first services and streaming or event-driven systems;
• Bachelor’s degree in Computer Science, Software Engineering, or a related technical field, or equivalent experience;
• Upper-Intermediate English or higher;
• Nice to have: background in ad tech, audience measurement, CTV/OTT, ACR, or programmatic data flows; hands-on production experience with GCP.

• Additional earnings of up to 1,000 USD per month depending on expertise, included in the annual bonus through participation in company activities;
• Professional, financial, and career growth opportunities;
• Mentoring and onboarding systems for each new employee;
• Access to the corporate training portal;
• Certification compensation, including AWS and PMP;
• Private health insurance and sports activity compensation;
• Referral program;
• Relocation and office options are available in Poland.