Data Modeling Architect (Mid-Level)

Quick Facts

• Role: Data Modeling Architect (mid-level)
• Work mode: Hybrid (8 days per month from office, rest remote)
• Contract/Rate: 1000–1250 PLN per MD (B2B)

Description

You will join a banking program focused on processing, integrating, and ensuring the quality of data for individual, corporate, and institutional customers. The role involves designing, building, and maintaining ETL/ELT pipelines, implementing transformations and quality controls, and integrating source systems into target analytical structures. You will also optimize performance for large-scale batch and stream processing and support releases with tests and technical documentation.

Responsibilities

• Design, build, and maintain ETL/ELT data flows and processing pipelines
• Implement transformations, validation, data quality rules, and error-control mechanisms
• Integrate data from source systems into target analytical structures
• Optimize query and data-processing performance
• Prepare technical tests, documentation, and support deployment of changes
• Collaborate with a data analyst, data modeler, architect, and maintenance teams

Requirements

• Experience in designing and implementing ETL/ELT processes
• Experience with batch or streaming data processing
• Very good SQL knowledge
• At least one programming/scripting language (e.g., Python)
• Knowledge of data warehouses and data lake/lakehouse
• Experience with orchestration and monitoring of data processing
• Experience optimizing queries and working with large volumes of data while ensuring data quality
• Ability to work with a code repository: code review, tests, and technical documentation

Benefits

• Work on ambitious, large-scale projects with room to bring fresh ideas and creativity
• Opportunity to work with a team focused on adopting new market technologies
• Participation in Jit communities and training via regular integration/community meetings
• Banking-domain project delivering data processing and quality assurance at scale