Nikodim Svetlichnyi
@nikodim_svetlichnyi
Data Scientist with 4 years of experience building production ML systems for fintech and quantitative analytics.
What I'm looking for
Data Scientist with 4 years of experience building production ML systems for fintech and quantitative analytics. Specialized in classical machine learning models with custom mathematical solutions, and anomaly detection. Strong focus on Explainable AI (XAI), model interpretability, robustness, and statistical rigor. Experience includes predictive modeling, fraud detection systems, and algorithmic trading strategies. M.Sc. in Intelligent Interactive Systems from Universitat Pompeu Fabra.
Experience
Work history, roles, and key accomplishments
Middle Data Scientist
Fintech Holding
May 2024 - Present (1 year 9 months)
Designed and deployed a production ensemble (XGBoost/CatBoost/LightGBM) achieving F1=0.84 and ROC-AUC=0.89 on 118K imbalanced samples, reducing false positives by 38% while serving 100K+ daily predictions with 99.7% uptime. Optimized feature pipeline to cut inference latency 2.8×, reduced feature space from 43 to 7, and delivered a 15% operational cost reduction for real-time predictions.
Junior Data Scientist
Fintech Holding
Sep 2023 - May 2024 (8 months)
Developed LSTM forecasting (2 layers) improving prediction accuracy 18% vs baseline and an autoencoder for anomaly detection achieving 83% recall with 5.1% FPR. Implemented hybrid clustering and regression pipelines to enable segmentation and reduce feature space while maintaining model performance.
Junior Data Scientist
Cryptomeria Labs
Jan 2023 - Sep 2023 (8 months)
Built a recommendation engine (collaborative filtering, SVD) achieving Precision@10=0.31 and increased engagement 26% in pre-release testing; combined logistic regression and XGBoost for classification achieving ROC-AUC=0.76 and improved conversion prediction by 28%.
Junior Quantitative Analyst
Cryptomeria Capital
Jun 2022 - Jan 2023 (7 months)
Developed scoring models using weighted linear regression and random forest achieving R2=0.64 and built automated ETL pipelines processing 50K+ daily records with validation and outlier detection. Implemented Monte Carlo simulations (10K iterations) to calculate VaR and CVaR for portfolio risk assessment.
Education
Degrees, certifications, and relevant coursework
Universitat Pompeu Fabra
Master's degree, Intelligent Interactive Systems
2024 - 2025
Grade: 7.83 ! ACCELERATED 1-YEAR TRACK, FULL 2-YEAR CURRICULUM !
Activities and societies: Master program on Artificial Intelligence, Robotics & Autonomous Systems; Master Thesis: Robustness in Reinforcement Learning under Task-Uncertainty.
Completed an accelerated M.Sc. in Intelligent Interactive Systems covering AI, robotics and autonomous systems with a thesis on robustness in reinforcement learning under task uncertainty.
National Research University Higher School of Economics
Bachelor's degree, Economics
2020 - 2024
Grade: 7.62
Activities and societies: Sailing Club Hermes; Bachelor thesis: Product Category Analysis and Optimization for the Lenta Online Store.
Completed a Bachelor of Economics with strong quantitative training in mathematics, statistics and econometrics and applied data analysis in Python; bachelor thesis on product category analysis and optimization.
University of Artificial Intelligence
Deep Learning
2023 - 2023
Activities and societies: Practical training in AI fundamentals, hands-on Python exercises and practical case analyses.
Completed a short course on Deep Learning & Neural Networks covering practical machine learning and deep learning fundamentals with Python.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Portfolio
github.com/nikodim-working-on-codeSalary expectations
Job categories
Skills
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