Senior Data Solutions Engineer (SQL & Python) for banking

Industry: banking

Location: hybrid - 3 days per week from office in Warsaw or Gdańsk

Rate: 165 pln/h on b2b

Summary: We're looking for a Senior Data professional with strong SQL and Python skills to design data models, define data mappings, and translate business requirements into scalable technical solutions in a banking environment.

Main Responsibilities:

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

• Analyse 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.

• Participate in solution implementation, testing, and continuous improvement activities.

Key Requirements:

• Extensive experience in data modeling 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 modeling.

• Experience ensuring data quality, consistency, and governance standards.

• Strong analytical and problem-solving skills.

• Experience working directly with business stakeholders and translating business requirements into technical solutions.

• Fluent English, both written and spoken.

Nice to Have:

• Knowledge of Kafka.

• Experience with Power BI.

• Familiarity with Java development.

• Understanding of data warehouse concepts and architecture.

• Experience using AI tools for documentation, testing, data analysis or development support.

• Experience in banking, finance, or regulatory reporting environments.

• Knowledge of credit risk, rating, or financial statement data domains.