Data Modeler

Quick Facts

• Role: Data Modeler
• Seniority: 2+ years experience
• Language requirements: Polish and English

Description

Design and maintain conceptual, logical, and physical data models adhering to established methodologies (e.g., Kimball dimensional modeling, Data Mesh). Define and document data transformation logic, lineage, and integration rules between source systems and analytical targets, ensuring performance, scalability, governance, and cloud cost-efficiency. Communicate architectural concepts, data flows, and modeling trade-offs across technical teams and business stakeholders.

Responsibilities

• Design and maintain conceptual, logical, and physical data models using dimensional modeling and/or Data Mesh.
• Define data transformation logic, lineage, and integration rules between source systems and analytical targets.
• Propose, evaluate, and document modeling and integration solutions aligned with enterprise data strategy and business needs.
• Collaborate with business analysts, source-system SMEs, data engineers, platform architects, and product owners.
• Ensure models include performance optimization, scalability, governance, and cloud cost-efficiency from inception.
• Produce and maintain technical documentation, metadata standards, and data dictionary assets.
• Communicate data flows and modeling trade-offs effectively to both technical and business stakeholders.

Requirements

• 2+ years of professional data modeling experience with hands-on dimensional modeling (Star Schema, Snowflake Schema, Kimball methodology).
• Proficient SQL for complex querying, validation, transformation logic design, and performance profiling.
• Practical knowledge of data warehousing concepts and ETL/ELT pipelines, plus modern cloud analytical architectures (Data Mesh, Data Lakehouse).
• Ability to create clear conceptual, logical, and physical ER diagrams and comprehensive mapping documentation.
• Strong analytical mindset bridging business requirements to underlying source-system schemas.
• Fluency in Polish and English.

Benefits

Not specified in the provided posting.