Senior Data Scientist(EU)

We are looking for a Senior Data Scientist(s) to join a global analytics initiative focused on delivering large-scale machine learning models within a complex financial services environment.

In this role, the person will lead the development of advanced segmentation and classification models, deploying scalable ML solutions across a wide network of business entities.
 

Contract duration: end of June 2026 (possible extension)
Location: EU only (preferably Bulgaria)

Key Responsibilities:

- Design, implement, and optimize machine learning models for clustering, classification, and risk-based segmentation
- Process and analyze complex transactional datasets, enhancing model performance and scalability
- Conduct advanced statistical modeling, scenario tuning, and parameterization activities
- Work extensively with Apache Spark (including internals), Python, and Git to develop, test, and operationalize solutions
- Collaborate closely with data engineering and business teams to ensure smooth integration and continuous model refinement
 

Requirements:

- Master’s degree in Data Science or a related discipline
- 7+ years of hands-on experience in ML/AI model development following completion of the master’s degree
- Deep understanding of clustering and classification algorithms
- Experience working with structured transactional or behavioral data
- Proficiency with Apache Spark (including internals), Python, and Git
- Strong communication skills in English (written and verbal)
- Experience in financial services, banking, or large-scale transactional environments is a plus