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Data Scientist & Machine Learning Engineer
VesnalaData Scientist & Machine Learning Engineer
Feb. 2022 - Jan. 2024Bratislava, SlovakiaVesnala is a retail and online drugstore company specializing in providing a wide range of pharmaceutical products and healthcare solutions. ๐—ฅ๐—ฒ๐˜€๐—ฝ๐—ผ๐—ป๐˜€๐—ถ๐—ฏ๐—ถ๐—น๐—ถ๐˜๐—ถ๐—ฒ๐˜€: ๐ŸŸขData Science Opportunity Identification: Improved demand forecasting, sales performance, and inventory management by identifying data science opportunities across teams, driving significant business growth. ๐ŸŸขData Quality & Feature Engineering: Increased model accuracy and efficiency through extensive data cleaning and feature engineering, streamlining workflows. ๐ŸŸขDashboard Development: Developed interactive, real-time dashboards that empowered marketing, sales, and supply chain teams, enhancing data-driven decisions. ๐ŸŸขML Model Deployment: Built and deployed models to optimize pricing, recommend products, and forecast sales trends, boosting operational efficiency.
StrategyQuant Specialist | Developer & | Consultant
StrategyQuant.comStrategyQuant Specialist | Developer & | Consultant
Aug. 2019BratislavaStrategyQuant is a provider of algorithmic trading software that enables traders to generate, test, and optimize trading strategies using data mining and machine learning. ๐—ฅ๐—ฒ๐˜€๐—ฝ๐—ผ๐—ป๐˜€๐—ถ๐—ฏ๐—ถ๐—น๐—ถ๐˜๐—ถ๐—ฒ๐˜€: ๐ŸŸขProgram Extensions Development: Enhanced platform functionality by creating program extensions in Java, MQL4, MQL5, and TradeStationโ€™s Easy Language, providing customized solutions to improved user experience. ๐ŸŸขClient Collaboration: Collaborated closely with clients, advising on implementing machine learning algorithms and trading models. Helped clients improve trading outcomes, strengthening relationships. ๐ŸŸข Feature Development & Debugging: Worked with the development team to design, test, and deploy new features. Ensured high performance and zero critical bugs. ๐ŸŸข Custom ML Solutions: Delivered custom machine learning models for trading strategy optimization, providing clients with efficient and automated trading solutions.
Owner
algotrading.spaceOwner
Nov. 2012BratislavaAlgoTrading.Space delivers tailored data mining and algorithmic trading solutions, utilizing advanced machine learning to develop strategies that enhance returns and reduce risk. ๐ŸŸขData Pipeline Development: Built end-to-end data pipelines to assess trading strategies, enhancing decision-making and profitability. ๐ŸŸขAutomated Decision-Making: Designed workflows to automate the selection of profitable trading strategies, establishing efficient, data-driven processes. ๐ŸŸขModel Accuracy & Adaptability: Applied drift detection and scikit-learn to improve model performance and adapt to market changes.
Head Trader
Colosseum, a.s.Head Trader
Apr. 2007 - Dec. 2011BratislavaColosseum, a.s. is a proprietary trading firm specializing in global futures, options, and ETF markets, providing trading services across multiple international exchanges. ๐—ฅ๐—ฒ๐˜€๐—ฝ๐—ผ๐—ป๐˜€๐—ถ๐—ฏ๐—ถ๐—น๐—ถ๐˜๐—ถ๐—ฒ๐˜€: ๐ŸŸข Self-Trading Operations: Led the firm's proprietary trading desk, executing high-volume futures, options, and ETF trades across major exchanges, including TOCOM, CME/CBOT, MCX, ICE, NYSE LIFFE, and EUREX. ๐ŸŸข Client Portfolio Management: Managed client accounts by creating, executing, and analyzing trades on their behalf, ensuring optimal risk management and strategic market positioning. ๐ŸŸข Global Market Execution: Conducted trades across multiple time zones and exchanges, leveraging quantitative analytics to identify opportunities in diverse market conditions. ๐ŸŸข Quantitative Strategy Development: Applied advanced quantitative models and technical analysis for strategy optimization and continuous portfolio improvement.

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