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Jean Nieto

PROFILE

Jean Nieto

Developed end-to-end data analysis and retrieval workflows in the d2cml-ai/Data-Science-Python repository, focusing on financial, social, and healthcare datasets. Built data ingestion pipelines and interactive visualizations using Python, Pandas, and Folium, enabling users to analyze stock trends, construct equal-weighted portfolios, and explore hospital locations on dynamic maps. Integrated APIs such as Yahoo Finance and Reddit for comprehensive data collection, and managed dependencies and documentation to streamline onboarding. Delivered a Retrieval Augmented Generation notebook tutorial leveraging ChromaDB and OpenAI embeddings, demonstrating persistent vector storage and reproducible LLM experiments. All work emphasized reproducibility, modularity, and practical application for data science workflows.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

6Total
Bugs
0
Commits
6
Features
4
Lines of code
27,979
Activity Months2

Work History

October 2025

1 Commits • 1 Features

Oct 1, 2025

October 2025 monthly summary focusing on key accomplishments in the Data-Science-Python repo. Delivered an end-to-end Retrieval Augmented Generation (RAG) notebook tutorial using ChromaDB and OpenAI embeddings, enabling reproducible LLM experiments and enhanced document retrieval workflows.

September 2025

5 Commits • 3 Features

Sep 1, 2025

September 2025 monthly summary for d2cml-ai/Data-Science-Python: Delivered foundational data science capabilities enabling end-to-end financial and social data analysis, and established project scaffolding for Practice 1. Implemented data ingestion and analysis pipelines, plus a user-facing visualization for hospital locations. The work enhances decision support, accelerates onboarding, and lays groundwork for scalable experimentation.

Activity

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Quality Metrics

Correctness90.0%
Maintainability90.0%
Architecture90.0%
Performance90.0%
AI Usage26.6%

Skills & Technologies

Programming Languages

HTMLJavaScriptJupyter NotebookMarkdownPythonShellText

Technical Skills

API IntegrationChromaDBData AnalysisData VisualizationDependency ManagementDocumentationEmbeddingsEnvironment ManagementFinancial AnalysisFoliumJupyter NotebookLLMOpenAI APIPRAWPandas

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

d2cml-ai/Data-Science-Python

Sep 2025 Oct 2025
2 Months active

Languages Used

HTMLJavaScriptMarkdownPythonShellTextJupyter Notebook

Technical Skills

API IntegrationData AnalysisData VisualizationDependency ManagementDocumentationEnvironment Management