SIX drives the transformation of financial markets.
What sets us apart drives us ahead: between local roots and global relevance, we are a unique blend of tradition and future, of foundation and growth. We value bright minds and inspire them to grow with their ideas. Come and shape the future of finance with us.
Data Scientist
Warsaw | working from home up to 40% | Reference 7407
Banking Services is at the core of Swiss payments, providing the infrastructure for interbank transactions and coordinating card and mobile payments for financial institutions, businesses, and the Swiss population. Guided by our values of trust, collaboration, ownership, and customer focus, we are shaping the future of payments and are now looking for a proactive Data Scientist to join our Warsaw team.
As part of our Data Science team within SIX Group, you will make data more accessible and drive innovation through advanced analytics and AI. From building predictive models to applying large language models, you will collaborate with colleagues and business stakeholders to deliver impactful, data-driven solutions that transform customer interactions and operational processes.
What You Will Do
- design and implement data science solutions to extract insights, automate processes, and communicate results with Power BI
- develop and optimize scalable Python ETL pipelines for on-prem (Windows, Linux) and Azure (Databricks) environments
- build robust data ingestion pipelines for structured and unstructured data, including quality checks and error handling
- maintain container-based CI/CD workflows, orchestration, and monitoring in both cloud and on-prem environments
- apply and fine-tune machine learning models, including large language models and time-series forecasting
What You Bring
- Bachelor’s or Master’s degree in Computer Science, a quantitative field, or equivalent background and 4+ years of professional experience in Data, ML, or Software Engineering
- strong proficiency in Python (data science stack) and engineering best practices (testing, review, documentation)
- hands-on experience in data analysis, visualization, version control, CI/CD, containerization, and relational databases
- solid knowledge of statistics, data analysis methods, and applied ML (e.g., LLMs) integration; Azure experience (Databricks, ADF) is a plus
- fluent in English (both verbal & writing), German is a plus
If you have any questions, check out our FAQ page or call Gabriela Swiatek at +48 532 466 652 / +41 58 399 42 33 / +34 91 330 51 49.
For this vacancy we only accept direct applications in English.
Diversity is important to us. Therefore, we are looking to receiving applications regardless of any personal background.
What We Offer
Flexible Work Models
We trust our employees and offer a work environment that is well-balanced, productive and fosters success.
Personal Development
You will benefit from a culture of continuous learning and feedback. Your personal growth is supported through an extensive learning offering.
Agile Working Methods
Whether through scrum or design thinking,
we solve exciting tasks together in teams.