Senior Data Scientist (Fintech)

TL;DR

Senior Data Scientist (Fintech): Maintaining, monitoring, and optimizing production analytics models and data processes with an accent on model stability, performance reporting, and regulatory compliance. Focus on investigating model anomalies, implementing enhancements, and ensuring high-quality data pipelines in large-scale distributed environments.

Location: Hybrid in Sofia, Bulgaria

Company

Global data and technology company powering opportunities for people and businesses through a unique combination of data, analytics, and software.

What you will do

• Monitor and optimize production model performance, stability, and drift.
• Conduct model validation, back-testing, and performance reporting.
• Investigate data and model anomalies and implement corrective actions.
• Maintain data pipelines, documentation, version control, and audit trails.
• Ensure compliance with regulatory, governance, and audit requirements.
• Collaborate with cross-functional teams to improve analytical solutions and data quality.

Requirements

• Experience in data science, machine learning, or analytics roles.
• Strong foundation in statistics, probability, linear algebra, and predictive modeling.
• Experience developing and maintaining ML models in production environments.
• Proficiency in Python.
• Experience with large-scale data processing technologies like Spark or Hadoop.
• Familiarity with structured and unstructured data processing, including NLP techniques.

Culture & Benefits

• Career growth pathways with unlimited access to online educational training and materials.
• Comprehensive social package including life and health insurance, food vouchers, and Multisport card.
• Flexible working hours and Home Office options.
• 25 days paid vacation plus additional days for birthdays and social responsibility events.
• Sharesave plan and Employee assistance program.