About

Who you are working with

Data Analyst based in New York. M.S. in Data Science.

Jean Batista wearing an orange helmet in the mountains.

I help people finish technical projects across fields. Family, friends, and small business owners reach out for the work they do not have time for. Recent client work spans classroom data analytics for an NYC public-school teacher, and inventory tracking sheet for a Battery Park apartment-complex superintendent. As well some website design, an acting portfolio for Chris Michael, and a fashion design site for Sophia Caridad. See the full freelance breakdown.

The work I care about most sits at the edge of data and real life. My personal projects involve nutrition research because of my goal of following healthy practices daily. In my free time, I do home improvement construction, running repairs, and brainstorming ideas with my girlfriend on projects for our property.

Portfolio

Selected work

A mix of personal projects and client work.

2026, Graduate Capstone

Food Data Analysis

Large-scale analysis of USDA branded food products. Outlier cleaning, a custom Nutrient Density Score, K-means clustering, PCA, and category deep dives. Open the slideshow for charts, metrics, and takeaway slides.

Pythonpandasscikit-learnK-meansPCA
2025, SQL Project

Inventory Audit Trigger

Normalized SQLite build for a USDA food-inventory sample. Five 3NF tables, an audit trigger logs every nutrient correction to a separate audit log, and three views ship CSV-ready output for analysis.

SQLiteSQL DDLTriggersViews
2024 to 2025, Classroom Analytics

Student Progression Tracking

Client task for an NYC public-school teacher: turn classroom observation notes into a measurable progression story. The analysis tracked 40 school days across baseline, strategy, and mastery phases, showing confidence growth from 2.0 to 4.7 and clear next-cycle actions.

PythonpandasmatplotlibReporting
See freelance & client work
Services

What you get when you hire me

Three areas where you spend most of an analyst's day.

01

Data analysis & reporting

Source raw files, clean them with documented steps, and answer the business question in writing. You get a number you trust and the audit trail behind the number.

02

Visualization & dashboards

Charts decision-makers act on, not decoration. Built in Python or R, shipped as static reports, slide decks, or web dashboards your team opens daily.

03

Modeling & statistics

K-means, PCA, OLS, and other lightweight methods with diagnostics. You get a model, the assumptions in play, and a written note on when to trust the output.

Toolkit

Stack & methods

Tools you would see open on my screen any week.

Languages

  • Python primary
  • R stats, viz
  • SQL T-SQL, Postgres

Data & ML

  • pandas, NumPy
  • scikit-learn
  • tidyverse, ggplot2
  • K-means, PCA, OLS
  • Model diagnostics

Databases

  • SQL Server, T-SQL
  • Triggers, ACID
  • MongoDB, Firestore NoSQL

Workflow

  • Jupyter, RMarkdown
  • Git & GitHub
  • matplotlib, seaborn
  • Technical writing
  • End-to-end deployment
Background

Education & experience

Education
2025 to 2026, Huntingdon PA

M.S., Data Science

Juniata College

  • Coursework, Data Mining, Machine Learning, Data Visualization, Big Data, Database Systems
  • Capstone-track project, large-scale exploratory analysis of USDA branded food data
2019 to 2023, New York NY

B.A., Economics

CUNY City College of New York

  • Specialization, Python for Business Analytics and Quantitative Finance
  • Foundation in econometrics, statistics, and applied financial analysis
Experience
2023 to Present, New York NY

Freelance Data & Web Developer

Independent

  • Ran classroom observation analytics for an NYC public-school teacher, tracking student progression across a school year and shipping visual reports
  • Built an inventory tracking sheet for an apartment-complex superintendent in Battery Park, NYC
  • Built portfolio sites for actor Chris Michael at chrismichaelart.com and fashion designer Sophia Caridad at sophiacaridad7.wixsite.com

Open to your next data or dev hire

Looking for Data Developer, Data Analyst, BI Analyst, or Analytics Engineer roles. Full-time, internship, contract, or freelance project. Based in NYC, open to remote.

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