Staff Data Engineer

Vend is home to marketplaces including FINN, Blocket, Tori, Oikotie, DBA, and Bilbasen used across the Nordics by millions. The company operates in Kraków with a hybrid work model.

• Senior-level hands-on experience with event-driven architecture including Kafka, event modeling, CDC patterns, schema evolution, and streaming/batch processing.
• Strong knowledge of cloud data platforms such as GCP/BigQuery or Snowflake.
• Skilled in engineering standards: versioning, backward compatibility, lineage, testing, monitoring, and incident prevention.
• Ability to design and influence high-quality data products with clear contracts and observability.
• Experience mentoring and influencing engineering decisions without formal authority.
• Fluent in English with strong communication skills to explain complex technical trade-offs.

• Design and review event-based data flows, Kafka topic structures, CDC patterns, streaming and batch pipelines.
• Help teams define stable, well-documented interfaces between data producers and consumers, guiding versioning and compatibility decisions.
• Ensure data products are reliable, discoverable, documented, testable, and observable.
• Define quality checks, monitoring, lineage, and alerting to detect and resolve issues proactively.
• Create reusable guidelines, examples, and decision records to accelerate data product development.
• Support teams through design reviews, RFCs, troubleshooting, and hands-on coaching.
• Manage healthy evolution of data products, including ownership, schema changes, consumer impact, and deprecation.

Work location is hybrid with 2 days per week in Kraków office; additional days optional.