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Experience

Professional journey and education

Work Experience

Expert Data Scientist

Novartis
Barcelona, SpainSep 2023 – Present
  • Product owner of 2 ML products covering €5B+ in yearly costs across 20+ countries, driving roadmap, stakeholder alignment, and quarterly business reviews.
  • Built automated cloud forecasting pipelines running monthly without intervention — now the central baseline for analysts and senior finance managers across the organization.
  • Achieved significant accuracy improvements over human forecasts, saving 150+ analyst hours/month and reducing manual forecast error by 30%+.
  • Architected CI/CD pipelines for Dockerized ML projects using Jenkins and AWS; built a centralized model registry, custom Databricks connector, and reusable internal Python libraries.
  • Designed and maintained end-to-end MLOps infrastructure: automated testing (unit, integration, E2E), model versioning, reproducible training pipelines, and scheduled retraining workflows.
  • Led LLM proof-of-concept initiatives — evaluating API-based (OpenAI, Anthropic) and local deployments (Ollama), collaborating with leadership on production strategy and compliance.
  • Built interactive dashboards in Power BI and Streamlit for real-time forecast monitoring, model performance tracking, and executive reporting.
  • Delivered training sessions for analysts and cross-functional teams on ML tooling, forecasting workflows, and data-driven decision making.
PythonSQLPandasScikit-learnCatBoostXGBoostLightGBMTime Series ForecastingAnomaly DetectionA/B TestingFeature EngineeringSHAP/LIMEJenkinsCI/CDDockerAWSSnowflakeMLflowGitPower BIStreamlitTerraformPydanticFastAPIAgentic AIRAGLangChainOllamaLangfuseNumPySciPyPolarsPySparkCausal InferenceStatisticsEconometricsBayesian StatisticsFinancial ModelingOptimization Theory

Data Scientist

Citibeats
Barcelona, SpainMar 2023 – Jul 2023
  • Developed NLP pipelines for large-scale text classification and sentiment analysis, processing millions of social media posts to identify public opinion trends for institutional clients (WHO, UNDP).
  • Built and fine-tuned Hugging Face transformer models (BERT, Llama) for multilingual text classification and topic modeling across 10+ languages.
  • Implemented unsupervised ML techniques (clustering, topic extraction) on unstructured text data to detect emerging social narratives and community needs.
  • Worked with Twitter API for real-time data ingestion and built ETL pipelines for large-scale text preprocessing and feature extraction.
  • Contributed to the team's 30+ fairness and robustness test suite ensuring NLP model quality and bias mitigation.
PythonNLPTransformersHugging FacePyTorchScikit-learnPandasNumPyFeature EngineeringTwitter APIFine-Tuning (LoRA)Prompt EngineeringRAGLocal LLMsDockerGitCI/CDStatisticsEconometrics

Teaching Assistant

National Research University Higher School of Economics
Saint Petersburg, Russia2019 – 2022
  • Led weekly seminars in Mathematical Statistics and Microeconomics for groups of 30+ undergraduate students across 3 academic years.
  • Designed problem sets, graded examinations, and provided individual tutoring for students struggling with quantitative methods.
  • Facilitated Q&A sessions bridging theoretical concepts (game theory, probability, optimization) with real-world economic applications.
  • Received consistently high student evaluation scores; helped improve average exam pass rates in assigned sections.
MicroeconomicsMacroeconomicsStatisticsEconometricsGame TheoryBayesian StatisticsPythonRStataLaTeXExcelPower BI (DAX, Power Query)UI/UXPandasNumPySQLScikit-learnFeature EngineeringProbability TheoryLinear Algebra

Consultant

PricewaterhouseCoopers (PwC)
Saint Petersburg, RussiaJan 2021 – Jun 2021
  • Performed transfer pricing analysis for multinational clients: benchmarking financial performance, identifying comparable transactions, and evaluating intercompany pricing policies.
  • Analyzed global corporate structures and financial statements across 10+ jurisdictions to assess compliance with OECD transfer pricing guidelines.
  • Prepared transfer pricing documentation and economic analyses supporting clients' tax positions for regulatory review.
  • Collaborated with cross-functional teams (legal, tax, audit) on complex restructuring and M&A due diligence engagements.
Financial ModelingMicroeconomicsMacroeconomicsStatisticsEconometricsExcelPower BI (DAX, Power Query)UI/UXLaTeXSQLPythonRStataPandasNumPyBayesian StatisticsGame TheoryOptimization TheoryTradingProbability TheoryLinear Algebra

Education

Master's Degree in Data Science

Barcelona School of Economics

Barcelona, Spain2022 – 2023

Thesis: Early Prediction of Preeclampsia from cf-RNA with ML

Bachelor's Degree in Economics

National Research University Higher School of Economics

Saint Petersburg, Russia2018 – 2022

Thesis: Statistical analysis of excess mortality factors in Russia during COVID-19

Erasmus Program in Economics

University College London (UCL)

London, UK2020 – 2021

International Foundation Program

University of Toronto

Toronto, Canada2017 – 2018

Piscine — Intensive C Programming

Codam Coding College

Amsterdam, Netherlands2019 – 2019