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Sii Sp. z o.o.

Senior Data Engineer - immediate start (f/m/x)

Sii Sp. z o.o. Show all offers
B2B
Hybrid
Senior
Bydgoszcz
Białystok
Szczecin
Lublin
+9
Expires Oct 21, 2026
1 day ago

In short

Senior Data Engineer needed for Databricks workflow design, Python backend dev, API creation (REST, OAuth 2.0), UI dev (React/Streamlit), CI/CD, Git, and testing. Requires 6+ yrs exp, strong Databricks skills, Python, React/Streamlit, Git, CI/CD, and English. Hybrid role in Bydgoszcz.

Keywords

Databricks Python API React.js Streamlit CI/CD Git REST OAuth 2.0 Data Engineering

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Technologies we use

About the project

Your responsibilities

  • Designing and implementing data workflows within Databricks, ensuring optimal performance and reliability
  • Developing backend logic in Python for content validation and API integration
  • Creating and managing APIs, including REST and OAuth 2.0, to facilitate data exchange
  • Building user interfaces using React.js or Streamlit to enhance the operational UI of the Databricks App
  • Implementing CI/CD practices to streamline deployment processes and ensure code quality
  • Utilizing Git for version control and collaboration with the development team
  • Conducting unit and integration testing to ensure the robustness of the solution
  • Monitoring application performance and logging errors for continuous improvement

Our requirements

  • Minimum 6 years of experience in data engineering or software development
  • Strong expertise in Databricks, including Apps, Workflows, Delta Lake, and Unity Catalog
  • Proficiency in Python for backend development, routing, and API integration
  • Experience with REST APIs, JSON, and OAuth 2.0
  • Solid understanding of frontend development using React.js or Streamlit
  • Familiarity with Git and CI/CD processes for effective version control and deployment
  • Advanced level of English
  • Availability to start no later than mid-October is required

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

This is how we work on a project

Published 2026-09-21
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