Senior Data engineer at WLG

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• 🏢 WLG has 11 jobs here, 9 with visa sponsorship see all
• 🛂 Visa: EU Blue Card. Minimum salary: PLN 160,264.08 a year (150% of the 2025 average salary) guide
• 💡 No salary shown. Ask WLG if it is above the minimum.

Updated 2026-11-05, from our data and official sources.

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About the role

Would you like to join one of the most innovative IT companies in the region? Our client is a leading Fintech company and data center that provides IT solutions for over 2.3 million active bank customers and 6.7 million active bank accounts in Europe. In a work environment where everyone knows the value of a healthy work-life balance, you can shape your career to match your current state of life. The company generously invests in the people and thus prioritizes candidates focused on long-term cooperation. Become a key player in our client's Warsaw-based Data Foundation team, the central hub powering data-driven success across the organization. You will be part of a collaborative and skilled group that builds and maintains the essential data infrastructure used by the entire company.  In this role, you will work on a wide range of engineering initiatives that serve multiple critical business domains, impacting hundreds of data solutions. A primary and exciting focus of the team is leading our strategic migration from a legacy on-premises Oracle & Informatica platform to a modern, cloud-based data platform using Databricks on Azure. You will have the opportunity to work with cutting-edge technology while collaborating closely with international colleagues, including Data Analysts and other specialized teams. We are happy to hear from you if you have: * 5-8 years of experience in a Data Engineer/ETL Developer role * Experience with the Microsoft Azure environment. * Competence in Python/PySpark or Spark & Python. * Proficiency with SQL. * Familiarity with Linux/Unix environments and shell scripting. * Understanding of Data Warehousing and Data Engineering concepts, such as data integration, ETL/ELT processes, Star Schema/Snowflake, Kimball modeling, Data Vault 2.0. * Skills and experience in performance tuning. * A genuine passion for design and implementation of Data Analytics, Business Intelligence, and AI solutions to solve business challenges. * Strong ability and eagerness to learn rapidly and apply new knowledge effectively. * A meticulous eye for detail and a commitment to delivering high-quality work * Advanced English skills You will love to join this company for: * B2B or indefinite employment contract * Agile work environment * Danish work culture – people are the biggest asset * Work-life balance * Flat hierarchy and high employee autonomy * Long-term cooperation & focus on personal development * Business, technical training, and mentorship programs * Conveniently located office (only 500 m from Central Train Station) * Internally meet-ups and knowledge sharing every month * On-site gym and shower facilities * Bike parking in the building * Integration (annual and roof parties, success celebrations, family events, beer, board games, and more) * Game room (PS4, darts, and football) * Two screens (24 inches) & HP I7 & adjustable desks * Support with work and residence permit for foreign candidate

Responsibilities

You will be part of a collaborative team that builds and maintains the essential data infrastructure used by the entire company. The role involves working on engineering initiatives that impact multiple critical business domains.

Requirements

Candidates should have 5-8 years of experience in a Data Engineer or ETL Developer role, with expertise in Microsoft Azure and Python/PySpark. Familiarity with data warehousing concepts and performance tuning is also required.

Key skills

• Data Engineering — in 120 other listings on The Stack
• ETL Development — in 2 other listings on The Stack
• Microsoft Azure — in 22 other listings on The Stack
• Python — in 1200 other listings on The Stack
• PySpark — in 42 other listings on The Stack
• SQL — in 545 other listings on The Stack
• Linux — in 151 other listings on The Stack
• Unix — in 5 other listings on The Stack
• Shell Scripting
• Data Warehousing
• Data Integration
• ETL Processes
• Star Schema
• Snowflake
• Kimball Modeling
• Data Vault 2.0

On The Stack (as of 2026-11-05)

• WLG has 10 other listings on The Stack, 9 of them marked as offering visa sponsorship.
• 25 visa-sponsored jobs in Poland on The Stack, posted in the last 60 days.
• 47 visa-sponsored data engineer jobs in Europe on The Stack, posted in the last 60 days.

Frequently asked questions about WLG

Is this Senior Data engineer role still open?

It was posted on 2025-10-14. Listings more than 30 days old may no longer be active, so check WLG's site before applying.

Where is this role located?

The listing gives the location as Warsaw, PL, Poland.

What skills does this role ask for?

The listing names: Data Engineering, ETL Development, Microsoft Azure, Python, PySpark, SQL, Linux, Unix, Shell Scripting, Data Warehousing, Data Integration, ETL Processes, Star Schema, Snowflake, Kimball Modeling, Data Vault 2.0.