class Gabriel:
role = "Backend Developer"
location = "Tunja, Colombia"
focus = ["Backend", "Open Source", "Linux", "Data Engineering & Analysis"]
stack = {
"languages": ["Python", "TypeScript", "PHP", "SQL"],
"backend": ["Laravel", "NestJS", "Node.js"],
"databases": ["PostgreSQL", "MySQL", "Redis"],
"data": ["Pandas", "NumPy", "Advanced SQL", "Power BI"],
"devops": ["Docker", "GitHub Actions", "Linux", "Nginx"],
"cloud": ["AWS EC2", "AWS S3", "AWS RDS"],
}Backend developer with 3+ years building APIs, microservices, and batch processing systems. Increasingly focused on open source, Linux tooling, and data engineering & analysis — turning raw data into reliable pipelines and clear insights.
| Backend | Data & Analytics | Databases | DevOps | Cloud |
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Projects I build and maintain in the open. Contributions, ideas and stars are welcome ⭐
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Desktop comic & manga reader (CBR/CBZ) built with Rust + Tauri 2 and React. Eye-friendly reading themes, reading-progress tracking and a SQLite-backed library.
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Anki add-on that auto-fills note translations for a whole deck in one click — built in Python, no API key required. Configurable language pairs and field mapping.
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📄 CV-MakerFree, open source résumé builder. Fill in friendly form fields, watch an elegant A4 preview update in real time, and export a crisp, vector PDF with a single click. Runs client-side — your data stays in your browser (localStorage) with JSON export/import for backups and device transfers.
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TotalDev SAS — Fullstack Developer (Jul 2025 - March 2026)
Interbank messaging, inventory systems, and QR authentication platforms
- Developed interbank messaging system processing MT format files with encryption validation, data standardization, and message routing per SWIFT/ISO 20022 specs
- Built backend systems for inventory management with REST APIs, automated CSV import/export, role-based access by geographic regions, and reporting modules with SQL views
- Created QR code generation and validation systems for event management and product authentication with pseudorandom code generation and real-time scanning interfaces
- Implemented CMS using Laravel + Filament for autonomous content management
Laravel Filament MySQL REST APIs
PARQ — Fullstack Developer (Nov 2024 - Jul 2025)
Microservices and electronic invoicing for parking management platform
- Maintained microservice architecture with NestJS + TypeORM, performing code audits, refactoring legacy code, and resolving production data inconsistencies
- Developed electronic invoicing middleware integrating with Colombian providers (Siigo, Alegra, SATCOM) with transaction logging and error handling for regulatory compliance
- Implemented pagination, queue-based bulk data loading, and scheduled jobs with timezone handling for automated reports and notifications
- Documented APIs with Swagger/OpenAPI and managed deployments through Docker and Portainer
NestJS TypeORM PostgreSQL Docker Swagger
SEREMPRE — Backend Developer (Jan 2023 - Nov 2024)
Backend systems for corporate benefits platform serving multiple Latin American countries
- Built backend systems with REST APIs consumed by mobile and web applications
- Designed complex MySQL queries and stored procedures for reporting systems, 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
Laravel MySQL Docker Redis REST APIs
| 🎓 | Systems and Computer Engineering — Expected 2026 Pedagogical and Technological University of Colombia (UPTC) |
| 📜 | Information Systems Analysis and Development — 2022 National Learning Service (SENA) |
| Language | Level |
|---|---|
| 🇪🇸 Spanish | Native |
| 🇺🇸 English | B2 - Upper Intermediate |
