
Volodymyr
From Spain (UTC+2)
10 years of commercial experience
Lemon.io stats
2
projects done1170
hours workedVolodymyr – Python, Machine learning, AI
Senior Data Scientist with a solid math and statistics background, focused on solving real business problems. Volodymyr has been working on connecting the dots and interacting with people in various functions, identifying product challenges, proposing solutions, and driving sustainable product impact. Furthermore, he has proven experience in end-to-end data science projects, including requirement gathering, data extraction, model development, deployment, and monitoring.
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Let’s get started today!Experience Highlights
Lead Data Scientist
A social discovery platform.
- Developed a conversational AI chatbot powered by a state-of-the-art LLM, enhancing customer satisfaction;
- Led the development of an innovative search recommendation system, significantly boosting ARPU;
- Automated critical business processes with advanced image recognition, text classification, and clustering algorithms;
- Architected a cloud-based data platform using Airflow, dbt, and BigQuery to streamline data workflows;
- Mentored a dynamic data science team, fostering technical growth and driving cross-functional collaboration;
- Designed and implemented rigorous A/B testing to continuously optimize machine learning models in production.
Data Science Consultant
A marketplace of rigorously vetted and curated developers.
- Led a high-impact marketing traffic estimation project, reducing decision-making time from 20 to 5 days;
- Developed a real-time car price estimation model that enhanced negotiation dynamics and improved conversion rates;
- Engineered robust data platforms on GCP and AWS, significantly improving data processing efficiency and scalability.
Lead Data Scientist
The product provides solutions for betting and casino platforms.
- Built and led a team of 6 data scientists, providing mentorship that accelerated product innovation;
- Designed comprehensive antifraud solutions that resulted in an 80% reduction in fraudulent activities;
- Collaborated with cross-functional teams to integrate machine learning solutions, achieving substantial business impact;
- Instituted MLOps best practices, streamlining deployment and monitoring for 10+ production models.
Head of Data Science
A real estate marketplace.
- Built ML models for user behavior prediction and recommendation systems;
- Created tools for CTR, CR, LTV prediction, and models for advertising campaign optimizations;
- Developed tracking dashboards and prepared analytics reports;
- Managed Data Science team;
- Deployed and managed ML engines on the production.
Data Scientist
An outsourcing company with clients from different sectors (energy demand, fin market).
- Created and presented models and solutions for existing and potential clients;
- Prepared project workflow and documentation;
- Developed prediction and optimization algorithms for energy demand programs;
- Developed the prediction of price movements in financial markets.
Data Scientist
An e-commerce recommendation platform.
- Developed recommendations and a scoring model for product comparison from Amazon, Walmart, eBay, etc.;
- Increased revenue by ~35% using ML models;
- Deployed the recommendation engine to the production environment;
- Constructed A/B tests;
- Explored customer behavior on the web.