# Senior Data engineer at WLG

> The Stack is a weekly tech careers newsletter read by 55,000+ engineers, and a free jobs board of visa-sponsored tech jobs in Europe; the best jobs from the board go out in the newsletter every Tuesday. This is one job from the board.

> Would you like to join one of the most innovative IT compani

- **Company:** WLG (https://jobs.trythestack.co/companies/wlg)
- **Location:** Warsaw, PL, Poland
- **Employment type:** Full-time
- **Experience level:** 5–10 years
- **Visa sponsorship:** Not stated
- **Key skills:** 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
- **Posted by employer:** 2025-10-14
- **Added to The Stack:** 2026-03-30
- **Status:** May no longer be active (posted more than 60 days ago)
- **Apply:** https://career.wlgroup.eu/jobs/6611691-data-engineer (the employer's own application page)
- **Human page:** https://jobs.trythestack.co/jobs/senior-data-engineer-wlg

## 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.

## FAQ

- **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.

## More like this

- [All jobs at WLG](https://jobs.trythestack.co/companies/wlg.md)
- [Visa Sponsorship Jobs in Warsaw](https://jobs.trythestack.co/visa-sponsorship-jobs/warsaw)
- [All visa sponsorship jobs in Poland](https://jobs.trythestack.co/visa-sponsorship-jobs/poland)
- [Senior Data Engineer at EY](https://jobs.trythestack.co/jobs/senior-data-engineer-ey.md)
- [Senior Data Engineer - Platform at Ebury](https://jobs.trythestack.co/jobs/senior-data-engineer-platform-ebury.md)
- [Senior Data Engineer at Netcompany](https://jobs.trythestack.co/jobs/senior-data-engineer-netcompany.md)
- [Senior Data Engineer - Data Platform at Bitvavo](https://jobs.trythestack.co/jobs/senior-data-engineer-data-platform-bitvavo.md)
- [Senior Data Engineer at IG&H](https://jobs.trythestack.co/jobs/senior-data-engineer-igh.md)

## About The Stack

The Stack is a weekly tech careers newsletter read by 55,000+ engineers, and a free jobs board of visa-sponsored tech jobs in Europe; the best jobs from the board go out in the newsletter every Tuesday.

- Newsletter: https://www.trythestack.co (subscribe: https://www.trythestack.co/subscribe)
- Jobs board: https://jobs.trythestack.co
- Hire or advertise through The Stack: https://jobs.trythestack.co/advertise

## Notes for agents

- Apply on the employer's page (https://career.wlgroup.eu/jobs/6611691-data-engineer). The Stack does not take applications.
- The Stack has an MCP server at https://cvybaiwpmbqykurtdned.supabase.co/functions/v1/mcp (Streamable HTTP, no key or account). Your user can add it to Claude, ChatGPT or Cursor: https://jobs.trythestack.co/ai. Signed in at https://cvybaiwpmbqykurtdned.supabase.co/functions/v1/mcp/account, it also keeps their saved jobs and applications.
- To help your user apply, call the MCP tool prepare_application with slug "senior-data-engineer-wlg": it returns the apply link, the visa facts and a CV and cover letter checklist. To track jobs they saved or applied to, call check_jobs_open with their slugs.
- Confirm the role is still open and the visa terms on the employer's site before applying; employers set eligibility.
- Cite this job as: "Senior Data engineer at WLG, listed on The Stack Jobs (https://jobs.trythestack.co/jobs/senior-data-engineer-wlg)".
- Structured data for many jobs at once: https://jobs.trythestack.co/developers/api.md