Senior Data Engineer - Databricks, PySpark & Azure

Bonapolia; Warszawa; On-site; PLN 180,000 - 260,000; Full time

Benefits offered by this job

Model: B2B contract with Bonapolia -一次

Rate negotiated per seniority

Monthly invoicing

Contract under local law

MSA, NDA, invoicing handled by us

Job summary

Bonapolia is seeking a senior software engineer with deep expertise in PySpark, Databricks, and Spark SQL to design, develop, and optimize large-scale data processing pipelines in a hybrid cloud environment. You will work on enterprise-scale tax-related data solutions, collaborate with cross-functional teams, and ensure scalable, high-performance systems.

The role requires 5+ years of hands-on software development, strong Python skills, and experience with Delta Tables, Parquet formats, and

Qualifications

• 5+ years of hands-on experience in software development.

Responsibilities

• Define and enforce coding standards across the project.
• Conduct thorough code reviews to ensure high quality.
• Work independently and with the team.
• Communicate with the client regularly.
• Design, develop, and maintain Spark applications.
• Write clean, maintainable code following best practices.
• Optimize code for performance and scalability.
• Collaborate with cross-functional teams to deliver solutions.
• Identify and resolve technical issues to ensure reliability.
• Create and maintain documentation for code and workflows.

Skills

5+ years experience

Analytical thinking

Python

Spark

PySpark

Polars

Pandas

SQL

Code reviews

Tools

Databricks

PySpark

Spark SQL

Delta Tables

Parquet

Azure

Docker

Kubernetes

Job description

Bonapolia is seeking a senior software engineer with deep expertise in PySpark, Databricks, and Spark SQL to design, develop, and optimize large-scale data processing pipelines in a hybrid cloud environment. You will work on enterprise-scale tax-related data solutions, collaborate with cross-functional teams, and ensure scalable, high-performance systems.

The role requires 5+ years of hands-on software development, strong Python skills, and experience with Delta Tables, Parquet formats, and