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  • Santo Domingo, Dominican Republic
  • 19:06 (UTC -04:00)
  • LinkedIn in/gestevez-ds

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Gian-DS1/README.md

Giancarlos Estévez

Data engineer · Santo Domingo, Dominican Republic · open to remote roles

I build data pipelines that hold up outside a notebook: real sources, point-in-time correctness, tests and CI. MSc in Data Science & Business Analytics, currently studying Software Engineering to pair the data side with solid engineering practice.

LinkedIn

Projects

Equity screener for the S&P 500 + NASDAQ 100 built on a strict point-in-time pipeline: fundamentals enter by their real SEC filing date, macro series by their ALFRED vintage, and 8-K sentiment only from the next business day — so the backtest can't learn from the future. Trained on 298k rows (515 tickers, 34 features), with SHAP explanations per signal, a rule-based exit engine and graduated drift monitoring.

Python · scikit-learn · SEC EDGAR · FRED · FinBERT · FastAPI · React · pytest · GitHub Actions

Personal-finance PWA: zero-based budgeting, credit-card cycles, debts and savings goals. Multi-currency, bilingual (es/en), installable, and backed by Postgres row-level security so each user only ever reaches their own rows.

React 19 · Vite · Supabase (Postgres + RLS) · Tailwind · Vitest · Playwright

End-to-end batch pipeline on a modern data stack: ingestion into Snowflake, dbt staging and mart models, Airflow orchestration, and an analytics layer with LLM review enrichment and natural-language querying over the warehouse.

Airflow · dbt · Snowflake · Python · Streamlit

Desktop canvas for running several AI coding agents in parallel — each one in its own real terminal, on an infinite board, driven by text or voice. macOS, Windows and Linux, with no build step.

Node.js · Express · WebSocket · xterm.js · node-pty

Toolbox

Core — Python · SQL · pandas · scikit-learn · Airflow · dbt · Snowflake · Parquet · FastAPI · Docker · GitHub Actions · pytest

Also worked with — AWS · Databricks · Power BI · Streamlit · React

GitHub stats

Giancarlos Estevez's GitHub stats: commits, pull requests, issues and stars Most used languages on Giancarlos Estevez's GitHub

Background

  • MSc in Data Science & Business Analytics — IMF Smart Education / UCAV, co-developed with Indra–Minsait
  • Currently studying Software Engineering
  • ~6 years in customer service across regulated health and finance sectors — real domain knowledge and the habit of absorbing complex business rules fast
  • Spanish (native) · English (C1)
  • Certifications: AWS Academy (ML & Cloud Foundations) · IBM Data Science · Google Cybersecurity

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  1. fintrack fintrack Public

    FinTrack — personal-finance PWA: zero-based budgeting, credit-card cycles, debts and savings goals. React 19 + Vite + Supabase (Postgres + RLS). Multi-currency, bilingual (es/en), installable.

    JavaScript

  2. lienzo lienzo Public

    Canvas multi-agente: dirige Claude Code, Codex, Gemini, Copilot y modelos locales (Ollama) en paralelo con tu voz. App de escritorio (macOS/Windows/Linux) con diseño Liquid Glass.

    JavaScript

  3. stock-screener-ml stock-screener-ml Public

    ML stock screener: pipeline de datos Point-In-Time (yfinance, SEC EDGAR XBRL, FRED, FinBERT), modelo táctico con validación temporal, monitoreo de drift y dashboard FastAPI + React

    Python

  4. zomato-data-engineering-pipeline zomato-data-engineering-pipeline Public

    Data engineering pipeline for the Zomato dataset using Airflow, dbt, Snowflake, and Gemini-powered AI analytics.

    Python