Senior Python Developer(hybrid Wroclaw/Poznan)

SNI is serving as a trusted IT Outsourcing partner in line with the needs of World's most prestigious firms and carried out successful projects worldwide.

Responsibilities

• Design, develop, and maintain data and application solutions using Python, PySpark, SQL, and the Databricks platform.
• Build, govern, and optimize Gold Layer data products to power downstream reporting, analytics, and critical risk workflows.
• Develop interactive, user-facing interfaces and workflow tools utilizing React and Databricks Apps.
• Architect and implement robust data pipelines, RESTful APIs, and reusable service components across the Medallion Architecture.
• Partner with product owners, risk stakeholders, and data engineers to translate complex business requirements into technical solutions.
• Enforce engineering excellence, automated testing, CI/CD pipeline integration, data security, and documentation standards.
• Mentor junior developers and contribute actively to architectural design reviews and platform decisions.

Skills

• Python software engineering experience, including deep proficiency with PySpark.
• Databricks ecosystem knowledge, including Delta Lake and Medallion Architecture (Bronze/Silver/Gold).
• Frontend development with React for building interactive, data-driven applications.
• Advanced SQL and data modeling for complex analytical data sets.
• Building enterprise-grade, scalable data pipelines, backend services, and APIs.
• Git version control, DevOps best practices, CI/CD automation, and Agile delivery.

Desirable

• Databricks Apps and integrated AI/ML capabilities.
• Microsoft Azure cloud ecosystem (Azure Data Lake Storage, Azure Databricks, Key Vault).
• Domain background in Financial Services, Risk Management, Regulatory reporting, or ESG technology.

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