Senior Data Modeller (Python)

Quick Facts

• Role: Senior Data Modeller (Python)

• Rate: up to 140 PLN/h

• Work model: Hybrid (3 days/week in office)

• Locations: Gdańsk/Gdynia or Warsaw

• Workload: Full-time (40 h/week)

Description

You will design and maintain data models for credit and financial data processes, translating business requirements into scalable technical solutions and ensuring accurate data flows between systems. The role focuses on data mappings, data quality and governance, documentation, and cross-team collaboration. You will also support process optimization and automation using AI-assisted tools.

Responsibilities

• Design and maintain data models supporting credit and financial data processes

• Analyze business requirements and translate them into scalable technical solutions

• Define and manage data mappings between multiple systems to ensure accurate data integration and transformation

• Ensure data quality, consistency, traceability, and auditability across the solution landscape

• Collaborate with business stakeholders, architects, and development teams on end-to-end solution design

• Prepare and maintain technical documentation and functional specifications

• Support process optimization and automation using AI-assisted tools

• Take part in solution implementation, testing, and continuous improvement

Requirements

• Extensive experience in data modelling and solution design

• Strong SQL skills and hands-on experience with relational databases

• Good programming skills in Python

• Experience with data integration, transformation, and data mapping across multiple systems

• Understanding of APIs, system integrations, and process modelling

• Experience ensuring data quality, consistency, and governance standards

• Strong analytical and problem-solving skills

• Experience working directly with business stakeholders to translate requirements into technical solutions

• Fluent English (written and spoken)

Benefits

• Up to 140 PLN/h

• Hybrid work model: 3 days/week in the office

• Full-time role (40 h/week)

• Locations in Gdańsk/Gdynia or Warsaw