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JhenyfferOliveira/README.md

Hello world!

Hi πŸ‘‹πŸΎ I'm Jhenyffer

Data Analyst | Analytics, Data Infrastructure, and Applied AI


πŸ‘©πŸΎβ€πŸ’» About me

Data analyst with experience in analytics, data infrastructure, and operational metrics in digital platforms. With an academic background in Linguistics and Literature, I am currently deepening my work in machine learning and applied AI, especially in ranking and decision systems. Native in Brazilian Portuguese and proficient in English and Spanish, I work comfortably with information across multiple languages and combine linguistic and analytical thinking in technical problem-solving.


✨ What I do

  • πŸ“Š Work with analytics, data systems, and operational metrics in digital platform environments
  • 🧠 Combine a humanities background with data science and applied AI
  • πŸ€– Interested in machine learning, ranking systems, decision systems, and model behaviour
  • ✍🏾 Write in Portuguese about data, SQL, Python, analytics careers, and career transition on Medium

πŸš€ Featured projects

Customer segmentation project using K-Means clustering on credit card behavioral data. Includes exploratory data analysis, optimal K selection, PCA visualization, cluster profiling, and statistical validation.

Tech: Python, pandas, scikit-learn, PCA, statistics


End-to-end data pipeline built to collect Instagram metrics through the Meta API, store raw data in Google Sheets, and support dashboards in Looker through Python automation.

Tech: Python, Meta API, ETL, Google Sheets, Looker Studio


Hackathon project developed as part of team InclusiData Alchemy, focused on a diversity and inclusion analytics solution based on a marketplace-style business challenge. Awarded 2nd place in the data category.

Tech: Data analysis, dashboarding, problem framing, business analytics


✍🏾 Writing

I write in Portuguese about data, SQL, Python, analytics careers, and career transition.

Some selected articles (written in Brazilian Portuguese / pt-BR):

More articles on Medium.


πŸ“š Learning archive

Below are repositories developed during technical training programmes and bootcamps.

πŸŽ“ Ada Tech – Data Science

πŸ’» WoMakersCode – Python and Django


πŸ› οΈ Tools and technologies

Python Numpy Pandas Seaborn Matplotlib Scikit-learn Django SQL PostgreSQL SQLite Metabase Power BI Tableau Looker Studio


🌐 Contact

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  1. etl-espaco-logos etl-espaco-logos Public

    πŸš€ Instagram data pipeline for an NGO that stores info in Sheets and powers a Looker dashboard

    Python 1

  2. Hackaton-ADAHACK Hackaton-ADAHACK Public

    πŸ… Project developed for hackaton solution.

    Jupyter Notebook 2

  3. Projeto-PowerBI-Ada Projeto-PowerBI-Ada Public

    πŸ“‰ Final Project for Power BI course.

    Jupyter Notebook 1 1

  4. Projeto-Estatistica-Ada Projeto-Estatistica-Ada Public

    πŸ“ˆ Final project for Statistics course.

    Jupyter Notebook 2 1

  5. Projeto-AnaliseDados-Ada Projeto-AnaliseDados-Ada Public

    πŸ“Š Final project for Programming Techniques course.

    Jupyter Notebook 1

  6. BlogNoticias-Django-WoMakersCode BlogNoticias-Django-WoMakersCode Public

    πŸ“° Django Web News Blog.

    Python 1