Juan Buitrago

Hello, I'm

Juan Buitrago


Systems Engineer specialized in scalable architectures and performance optimization. Focused on Clean Code and Agile methodologies, I have achieved a 98% improvement in the efficiency of mission-critical systems. My passion lies in transforming complex problems into high-impact digital solutions.

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/ Career

A brief overview of my career

January 2025 – February 2025

Full-Stack Web Developer

Confecoop Boyacá

Responsible for high-fidelity interface development and maintenance of the institutional platform using React.js and TypeScript, prioritizing user experience and frontend component efficiency.

React.jsNode.jsUX/UICRUD Logic
June 2025 – October 2025

Software Engineer

Grupo Prevenso LTDA

Led the architecture of RESTful APIs and optimization of mission-critical financial workflows, achieving a 98% reduction in processing times through automation and systems re-engineering.

RESTful APIsNode.jsReact.jsAWSDockerCI/CD
Graduated: April 2026

Systems Engineer

Universidad Santo Tomás

Comprehensive training in software engineering with an emphasis on the development lifecycle, design patterns, and application scalability, complemented by international certifications in Cloud and Agile methodologies.

Software ArchitectureAgile (Scrum/Kanban)AWSProblem Solving

/ Featured Projects

A selection of professional work and experimental prototypes.

Secure Payment Gateway & Subscription Framework screenshot 1Secure Payment Gateway & Subscription Framework screenshot 2
Fintech / Cybersecurity

Secure Payment Gateway & Subscription Framework

Engineered a robust validation framework using Zod to secure checkout modules, preventing production vulnerabilities through schema-driven development. Integrated Prisma ORM for resilient subscription state management and automated OpenAPI documentation to ensure 100% API contract reliability.

Node.js TypeScript Prisma ORM Zod Vitest Swagger/OpenAPI
Enterprise Inventory Management System screenshot 1Enterprise Inventory Management System screenshot 2
Enterprise Solution

Enterprise Inventory Management System

Enterprise-grade solution featuring complex relational logic designed under UML standards. Ensures absolute data integrity for critical stock operations through optimized PostgreSQL schemas.

PostgreSQL React Node.js UML

/ Tech Stack

Breakdown of my technical skills, categorized by domain and proficiency

Expert
Proficient
Beginner

Frontend & Mobile Development

React.js
TypeScript
Flutter
JavaScript (ES6+)
Tailwind CSS
Astro
Zod
Figma

Backend & Architecture

Node.js
Java
.NET
RESTful APIs
PostgreSQL
MongoDB
Prisma
C++
Python

Cloud & DevOps

Microservices
OOP
Performance Opt.
AWS
Docker
Git
CI/CD

Methodologies & Tools

Postman
Scrum
UML
Clean Code

/ Contact Me

Feel free to reach out. I'm always open to discussing new projects and opportunities.