About Gabriel

Backend Developer with 3+ years of experience building scalable REST APIs, microservices architectures, and containerized applications. Proficient in Laravel, NestJS, and Python with hands-on experience in Docker, AWS, CI/CD pipelines, and Linux server administration.

Focused on backend systems design, infrastructure automation, and cloud deployments. I've worked on applications that process large volumes of information, from interbank messaging systems to inventory management platforms handling thousands of products.

Experience

Fullstack Developer

Jul. 2025 – Present

TotalDev SAS

  • Developed an interbank messaging system that receives and processes MT format files, validates encryption status, standardizes data formats, and routes messages according to SWIFT/ISO 20022 specifications
  • Built backend systems for inventory management handling product catalogs with REST APIs, automated CSV import/export, role-based access control by geographic regions, and reporting modules with SQL views for query optimization
  • Created QR code generation and validation systems for event management and product authentication, including pseudorandom code generation and real-time scanning interfaces
  • Implemented content management systems using Laravel and Filament, allowing non-technical users to manage site content, images, and configurations autonomously

Fullstack Developer

Nov. 2024 – Jul. 2025

PARQ

  • Maintained and evolved a microservice architecture with NestJS and TypeORM, performing code audits, refactoring legacy code, and resolving data inconsistencies in production databases
  • Developed electronic invoicing middleware integrating with Colombian providers (Siigo, Alegra, SATCOM), implementing transaction logging and error handling for regulatory compliance
  • Implemented pagination systems, queue-based bulk data loading, and scheduled jobs with timezone handling for automated report generation and notifications
  • Documented APIs using Swagger/OpenAPI and managed deployments through Docker and Portainer with version control in Bitbucket

Backend Developer

Jan. 2023 – Nov. 2024

SEREMPRE

  • Built backend systems for a corporate benefits platform serving multiple Latin American countries, developing REST APIs consumed by both mobile and web applications
  • Designed complex MySQL queries and stored procedures for reporting systems, and configured automated cron jobs for user administration and scheduled notifications
  • Migrated legacy systems to containerized environments using Docker (DDEV), applying database normalization and query optimization for batch processing workloads
  • Integrated external APIs (Cloudinary for media management, Moodle LTI for e-learning content) and developed custom plugins for content sharing between platforms

Technical Skills

Languages

Python TypeScript PHP SQL Bash

Backend

Laravel NestJS Node.js REST API Design Microservices Architecture

Databases

PostgreSQL MySQL Redis TypeORM Eloquent ORM Query Optimization

DevOps & Cloud

Docker Kubernetes AWS (EC2, S3, RDS) CI/CD GitHub Actions Nginx Linux

Tools

Git Swagger/OpenAPI SonarQube Portainer Bitbucket

Education

Systems and Computer Engineering

Expected 2026

Pedagogical and Technological University of Colombia (UPTC)

Information Systems Analysis and Development

2022

National Learning Service (SENA)