Senior Data Engineer @ Verita HR

Verita HR; Kraków; On-site; PLN 180,000 - 280,000; Full time

Job summary

Verita HR Group in Kraków is seeking an experienced Senior Data Engineer to design and maintain production-grade data pipelines. The role focuses on building scalable data flows, ensuring data quality, and delivering robust data solutions.

You will work with SQL, Python, graph databases, and knowledge graphs to implement ontology-driven data models and optimise performance across platforms.

Qualifications

• Proven experience delivering production-grade data pipelines.
• Strong SQL skills with complex transformations and optimisation.
• Hands-on with graph databases and knowledge graphs including ontology modelling.
• Experience designing NoSQL data models with partitioning and indexing.
• Strong Python skills for orchestration, transformation and testing.

Skills

Senior Data Engineer

SQL

Graph databases

Knowledge graphs

NoSQL data modeling

Python

Job description

• Proven experience as a Senior Data Engineer delivering production-grade data pipelines
• Strong SQL skills: complex transformations, relational modelling, query-plan analysis and optimisation
• Hands-on experience with graph databases and knowledge graphs, including ontology and entity/relationship modelling
• Practical experience designing NoSQL data models (partitioning, indexing, consistency trade-offs)
• Strong Python skills (or equivalent) for orchestration, transformation and testing