Data Engineer in Poland (Ad Tech)

Location: Poland. Remote, office-based, and hybrid work options are available.

Salary: EUR 4,180–6,960 gross per month. Final compensation depends on experience, location, and professional growth.

Company

Global technology provider delivering data analytics and AI-powered solutions for customer behavior analysis, marketing optimization, and data-driven business decisions.

What you will do

• Act as the primary data engineering contact for reporting questions, data availability, metric discrepancies, and pipeline behavior.
• Write and execute SQL queries in BigQuery and PostgreSQL to validate reports, investigate anomalies, and confirm fixes.
• Reproduce and document data issues, coordinate resolutions with the core data engineering team, and support ad hoc data requests.
• Configure AWS S3 buckets, IAM policies, and SFTP endpoints for partner data delivery.
• Write and maintain Python-based Apache Airflow DAGs for ingestion scheduling, alerting, and dependency management.
• Coordinate partner file specifications and delivery schedules while validating identity resolution and data quality before production.

Requirements

• 3+ years of experience as a Data Engineer.
• Production experience with AWS or Databricks, distributed processing, and workflow orchestration.
• Strong production SQL skills with BigQuery and/or PostgreSQL.
• Production-quality Python and experience authoring Apache Airflow DAGs.
• 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; English at Upper-Intermediate level or above.

Nice to have

• Experience in ad tech, audience measurement, CTV/OTT, ACR, or programmatic data flows.
• Production experience with GCP.

Culture & Benefits

• Opportunity to work with major organizations across fintech, healthcare, retail, telecom, and other industries.
• Options to change projects and develop expertise in different business domains.
• Mentoring, onboarding support, and opportunities for professional, financial, and career growth.
• Additional annual bonus potential of up to USD 1,000 per month depending on expertise and participation in company activities.
• Corporate training portal, certification compensation, private health insurance, and sports activity compensation.
• Team events and office amenities including social activities, gaming, snacks, and refreshments.