Andrej I.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

I'm a toptal certified, senior data scientist with 6 years of experience building predictive analytics and AI solutions for clients in automotive, telecommunications, and healthcare—including regulated domains like oncology. My expertise spans graph neural networks (GNNs), time series forecasting, NLP, and generative AI, and I’m proud to have published my work in IEEE and ACM conferences. I specialize in deploying scalable machine learning systems on AWS and Google Cloud, and have led cross-functional teams to deliver real business impact for Fortune 500 companies and fast-growing startups. Whether you need end-to-end ML pipelines, advanced analytics, cloud integration, or actionable dashboards, I deliver on time and with clear communication. Let’s work together to turn your data into results—message me about your project to get started. • Machine Learning (Python, R, scikit-learn, TensorFlow, PyTorch) • Graph Neural Networks and Recommender Systems • Time Series Analysis & Forecasting • Data Visualization (Plotly, Matplotlib, Power BI, Tableau) • Cloud Deployment (AWS, GCP) • API & Dashboard Development • Technical Documentation