Welcome to my Portfolio!
Email: delea.usa@gmail.com GitHub: kbello90/advanced-projects: Advanced Data Science Projects
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I am a Data Scientist with a strong foundation in business analytics and accounting, holding a Post Graduate Program in Data Science and Business Analytics from the University of Texas at Austin – McCombs School of Business and a Bachelor’s degree in Accounting.
I specialize in applying machine learning, generative AI, and predictive analytics to transform complex data into actionable insights. My expertise spans AI model development, statistical modeling, and LLM-based automation.
I bring hands-on experience in Python,SQL,Power BI, and R,applying these tools to deliver insights, optimize processes, and drive data-informed decision-making
Data Science |Data Analyst | Power BI & Python Specialist | Accounting
Programming & Tools: Python (Pandas, NumPy, Scikit-learn, Statsmodels, Matplotlib, Seaborn), SQL (Advanced querying & ETL), Power BI (DAX, Power Query), R
Machine Learning: Regression, Classification, Clustering, Time Series Forecasting, Ensemble Methods, Model Evaluation, and Deployment
AI & Generative AI: Large Language Models (LLMs), Prompt Engineering, Generative AI Applications, NLP, Embeddings, AI Agents, and Automation
Predictive Analytics: Forecasting, Anomaly Detection, Optimization, and Decision Support Systems
Business & Domain Expertise: Financial Analytics, Cost Analysis, and Supply Chain Optimization
Portfolio
Projects
Machine Learning
SQL
Generative AI
Hypothesis Testing
Exploratory Data Analysis (EDA)
Dashboard
Supply Chain Performance Dashboard
Supply Chain Performance Dashboard
Built in Power BI, this dashboard provides a comprehensive view of supply chain efficiency by tracking order fulfillment time, delivery status, and warehouse performance. It helps identify bottlenecks and improve logistics operations with KPI cards, trend analysis, and location-based insights.
Inventory Optimization Dashboard
Inventory Optimization Dashboard
Designed for inventory managers, this dashboard monitors stock levels, reorder points, and product movement trends. It uses DAX and visuals to highlight overstock or stockout risks and supports informed restocking decisions.
Sales and Revenue Insights Dashboard
Sales and Revenue Insights Dashboard
An interactive Power BI report to explore sales trends by product category, region, and time. It includes YoY growth, best-selling products, and customer segmentation, helping stakeholders make data-driven marketing and pricing decisions.
Financial Performance Dashboard
Financial Performance Dashboard
This dashboard visualizes income statements across multiple periods, allowing users to track revenue, expenses, and profit margins. Includes ratio analysis (e.g., gross margin, net profit margin) and trend visualizations to support financial decision-making.
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