Mid-Level Data & Reporting Developer – Cloud and Big Data

Unleash the power of data—drive innovation and strategic insights through cutting-edge analytics!

Kraków-based opportunity with a hybrid work model (up to 2 remote days per week).

As a Mid-Level Data & Reporting Developer – Cloud and Big Data, you will be working for our client, a leading financial services institution committed to leveraging data to transform decision-making and customer experience. You will support the development of data technology solutions, collaborate with cross-functional teams, and optimize data operations within a dynamic cloud environment—all playing a key role in shaping the future of data-driven financial solutions.

Your main responsibilities:

• Develop data technology solutions using Python, TSQL, C#, and other languages to support business needs
• Support technical leadership in evaluating and recommending data consumption engines and emerging technologies
• Create and maintain data warehouses, big data systems, and ETL tools to facilitate data integration across platforms
• Optimize data query performance and manage data ingestion, sourcing, and aggregation workflows
• Build, publish, and maintain data assets for real-time analytics and reporting
• Design, implement, and document data architecture and data modeling solutions
• Develop secure, automated data pipelines and oversee code deployment processes
• Set up data quality checks, monitoring, and alerting to ensure reliable data analytics flows
• Deliver complex reports within Google Cloud environment and/or Microsoft SQL Server
• Create and maintain data visualizations in Looker Studio / Data Studio
• Engage with stakeholders to understand requirements, process logic, and identify process improvements
• Troubleshoot and resolve data issues, bugs, and ad-hoc data analysis requests
• Document processes effectively, including road-maps and technical descriptions
• Drive project progress through stakeholder collaboration and monitoring

You're ideal for this role if you have:

• At least 3 years of experience in data development and reporting within a financial or banking environment
• Proficiency in Python, TSQL, and/or C# for data solutions
• Deep knowledge of the data lifecycle, including sourcing, ingestion, data warehouses, big data, and cloud migration
• Experience with ETL tools and data integration across various databases and platforms
• Working knowledge of Google BigQuery, Looker Studio, Qlik Sense, PowerApps, Alteryx, or Collibra
• Ability to develop conceptual, physical, and logical data models
• Strong analytical and problem-solving skills
• Proven ability to collaborate with stakeholders and cross-functional teams
• Excellent communication and diplomacy skills

It is a strong plus if you have: (optional)

• Experience with Qlik, Teradata, Cloudera, or Quentexa
• Knowledge of R or Scala
• Familiarity with JIRA and agile methodologies
• Background in financial services or banking data environments

Language Required for the role:

• English — Communicative proficiency required

Eligibility to work in Europe:

• Only candidates with an existing legal right to work in the European Union will be considered for this role.

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Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.