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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on building a modern data platform based on Databricks and the Microsoft Azure ecosystem. Work requires Python, PySpark, Delta Tables and Azure services like Azure Data Factory and Azure Event Hub. Responsibilities include designing and developing scalable data solutions, implementing and optimizing ETL/ELT for batch and streaming, maintaining medallion architecture and integrating data from multiple sources. Minimum 5 years of data engineering experience and advanced English are expected.
Senior Data Engineer - financial industry (f/m/x)
Company: Sii Sp. z o.o.
from: 26 October 2026
to: 25 November 2026
salary not specifiedB2B contract (full-time)
salary not specifiedcontract of employment
Offer parameters
level:senior
working mode:remote • hybrid • full office
Białystok, Centrum
Requirements
Expected technologies
Python
PySpark
Databricks
Azure Data Factory
Azure Event Hubs
Optional technologies
Elasticsearch
Our requirements
- At least 5 years of experience in a Data Engineer, Big Data Engineer, or similar role
- Strong hands-on experience with Python and PySpark
- Proven experience with Databricks, Delta Tables, and modern data architectures
- Practical knowledge of the Microsoft Azure ecosystem, including Azure Data Factory and Azure Event Hub
- Experience building and maintaining scalable ETL/ELT pipelines
- Advanced level of English
- Interest in modern technologies and experience using AI-assisted development tools in everyday work
Optional
- Familiarity with Elasticsearch
- Strong analytical skills and a proactive approach to solving complex data-related challenges
Your responsibilities
- Design and develop data solutions using Databricks, Python, and PySpark
- Build and optimize ETL/ELT pipelines for batch and streaming data processing
- Implement and maintain medallion architecture using Delta Tables
- Integrate data from multiple sources, including SFTP files, Delta Tables, and Azure Event Hub
- Work with Azure services such as Azure Data Factory to support end-to-end data workflows
- Utilize AI-powered development tools to improve code quality, testing, documentation, and productivity
About the project
We are looking for a Senior Big Data Developer to join our team in building a modern data platform using Databricks and the Microsoft Azure ecosystem. In this role, you will be responsible for designing and developing scalable data solutions, implementing and optimizing ETL/ELT pipelines, and integrating data from multiple sources. If you are passionate about modern data engineering, AI-assisted development, and creating impactful data solutions, don't hesitate to apply!
Job Description
We are looking for a Senior Big Data Developer to join our team in building a modern data platform using Databricks and the Microsoft Azure ecosystem. In this role, you will be responsible for designing and developing scalable data solutions, implementing and optimizing ETL/ELT pipelines, and integrating data from multiple sources. If you are passionate about modern data engineering, AI-assisted development, and creating impactful data solutions, don't hesitate to apply!
What we offer
- Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
- Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
- We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
- Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
- Comfortable workplace – class A offices or remote work
- Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
- PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
- Investment in your growth – meetups, webinars, training platform and technology blog – you choose
- Fantastic atmosphere created by all Sii Power People
Recruitment stages
- 1.Send your CV
- 2.Talk to us about your expectations
- 3.Learn more about our projects and choose the best
- 4.Start your adventure with Sii!
Sii Sp. z o.o.
Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 300 professionals and implement projects in a variety of industries for clients from many countries around the world. The Great Place to Work title, won 10 times in a row, proves that at Sii, we create a friendly work environment.
Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.
This is how we work
Senior Data Engineer - financial industry (f/m/x)
I apply to:
Sii Sp. z o.o.
Białystok, Centrum
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