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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.

Senior Data Scientist

Warsaw, Madrid | Working from home up to 40% | Reference 7592

Join our Data Science, Analytics, and AI team at SIX BFI, a leader in the financial data industry. We are looking for a passionate and experienced Senior Data Scientist to drive the development of innovative AI-powered solutions. You will work on a wide range of initiatives, from extracting intelligence from unstructured data to building production-grade analytical applications. If you are a proactive, hands-on leader who thrives on solving complex challenges and wants to make a significant impact, this is the role for you.

What You Will Do

Lead AI/Analytics Projects: Owns the end-to-end lifecycle of data science projects, from ideation and stakeholder engagement to deployment and iteration, ensuring alignment with business goals.
Develop Advanced AI/ML Models: Leverage cutting-edge AI, NLP, and machine learning techniques to extract structured insights from unstructured financial documents and alternative data sources.
Build Production-Ready Solutions: Design, build, and deploy robust, production-grade AI solutions, including analytical chatbots and critical applications that deliver actionable insights from our vast datasets.
Act as a Data Evangelist: Develop a deep understanding of our vast financial datasets and act as a subject matter expert, collaborating directly with business stakeholders to understand their needs and translate them into data-driven solutions.
Collaborate and Mentor: Work closely with cross-functional teams of engineers, product managers, and other data scientists. Mentor junior team members and foster a culture of technical excellence and continuous learning.

What You Bring

Technical Expertise: Deep proficiency in Python and its data science ecosystem (e.g., pandas, scikit-learn, spaCy). Extensive experience with Databricks, PySpark, and dbt for large-scale data processing and transformation.
API and Backend Skills: Proven experience building production-ready APIs using frameworks like FastAPI and interacting with databases using tools like SQLAlchemy.
DevOps & MLOps Mindset: Strong understanding of software development best practices. Hands-on experience with Docker for containerization and Git for version control.
Technical Expertise: Deep proficiency in Python and its data science ecosystem (e.g., pandas, scikit-learn, spaCy). Extensive experience with Databricks, PySpark, and dbt for large-scale data processing and transformation.
API and Backend Skills: Proven experience building production-ready APIs using frameworks like FastAPI and interacting with databases using tools like SQLAlchemy.
DevOps & MLOps Mindset: Strong understanding of software development best practices. Hands-on experience with Docker for containerization and Git for version control.

If you have any questions, check out our FAQ page or call Yuliya Stoyko at +34 917095993.

For this vacancy we only accept direct applications.

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.

Tags & focus areas

Used for matching and alerts on DevFound

Ai Data Science