Code
PythonTypeScript / JavaScriptReact (Vite + Tailwind)Next.jsNode.js (Express)FastAPIC# / .NETJava / KotlinPHPHTML / CSS
$ Hi, I'm
Juan Esteban Cruz Perez (Juanes)
Systems Engineer | Data & AI | Full-Stack & QA
I build data and software solutions — from Big Data pipelines to web interfaces. Open to remote roles in full-stack, data engineering, and QA.
01. About me
I'm a systems and computer engineer from Universidad del Quindío with hands-on experience in Big Data pipelines, backend, frontend, and quality assurance. I research multi-agent architectures and autonomous systems, and I work with the Apache Hadoop ecosystem in the GRID research group.
I speak native Spanish and B2 English, and I'm open to remote work as a junior full-stack developer, data engineer, or QA engineer.
- Armenia, Quindío — Colombia
- Full-Stack · Data · QA
- B.Eng. Systems & Computer Engineering
- github.com/juanescruz
02. Tech Stack
Technologies I work with daily
Data & AI
PostgreSQLMySQLSQL ServerT-SQLPLpgSQLPySparkApache AirflowMinIOApache HadoopSnowflakeMicrosoft Fabric
DevOps
DockerGitHub ActionsGit / GitHubAWS Cloud
QA
PlaywrightSeleniumPostmanJMeterJira
03. Projects
Recent work and personal projects
Featured
View repository
FutData-Engine /2026
Big Data pipeline for football scouting: ingestion orchestrated with Apache Airflow into a MinIO data lake, batch transformations with PySpark into PostgreSQL, a REST API with Node.js/Express/TypeScript, and dashboards in React + Vite + Tailwind CSS. Fully containerized with Docker.
97,518events validated
4,585players tracked
xG · Pases · Presionesmetrics computed
football-betting-model
Multi-agent ML system to predict Premier League odds with Python and Jupyter.
PythonJupyterML
Repo
computerVisionProj
Computer vision experiments in Python: detection and image processing.
PythonOpenCV
Repo
frontGPSanJuan
TypeScript/React frontend for GPS tracking.
TypeScriptReact
Repo
Clinica
3-member team project in Java — "Autodeploy Software 3".
JavaTeam
Repo
estrategiasProgramacion
Greedy algorithms in Java/Kotlin — competitive programming strategies.
JavaKotlin
Repo
Sistema de Nómina y Préstamos
Desktop app in C#/.NET Windows Forms with SQL Server: CRUD, payroll processing, and reports.
C# / .NETSQL Server
Repo
04. Experience
- Adaptive probabilistic system with evolutionary multi-agent architecture and genetic algorithms.
- Walk-forward validation using Log Loss and Brier Score metrics.
- Apache Hadoop ecosystem architectures, parallel computing, and large-scale data processing.
- Python automation for administrative data management.
- Complex queries in MySQL, PostgreSQL, and SQL Server.
- Taught programming logic and algorithms to students.
- Group leadership and personalized mentoring.
05. Education
Systems and Computer Engineering
Universidad del Quindío
2022 — 2026
Additional training
- Microsoft Fabric Bootcamp — CodigoFacilito
- Professional Docker Course — CodigoFacilito
- GitHub Actions Bootcamp — CodigoFacilito
- Git & GitHub Course — Platzi