Hugo Naranjo
@hugonaranjo
Backend developer at Grupo Lozmar who automated CFDI 4.0 e-invoicing and built AI document pipelines.
MexicoWhat I'm looking for
At Grupo Lozmar, I developed backend services for six client projects, including a FastAPI and PostgreSQL e-invoicing system integrated with Mexico's tax authority through a PAC. I also automated billing requests with an OpenAI tool-calling agent connected to GoHighLevel.
On a property appraisal platform, I cut comparable-property lookup from about four minutes to about 40 seconds and improved scanned-document extraction. For a field survey app, I closed a privilege-escalation vulnerability and made Face ID authentication real, verified by 19 of 19 end-to-end tests.
I also implemented cancellation and role-based access for an AI document generation platform. In my projects, I built a real-time UNO multiplayer API with 255 automated tests and 98.7% line coverage, and a multi-tenant POS backend with automated tests and GitHub Actions CI.
Experience
Work history, roles, and key accomplishments
Full Stack Software Developer
Grupo Lozmar
May 2026 - Aug 2026 (3 months)
Developed e-invoicing systems, property appraisal platforms, and security audits. Automated CFDI 4.0 e-invoicing with FastAPI and PostgreSQL, integrated with Mexico's tax authority, and implemented AI document pipelines.
Education
Degrees, certifications, and relevant coursework
Jala University
Partial studies, Commercial Software Engineering
2023 -
Partial studies in Commercial Software Engineering since January 2023.
Universidad Juárez del Estado de Durango
Engineering degree, Computer & Systems Engineering
2019 -
Pursuing a degree in Computer & Systems Engineering since June 2019, with an expected graduation in March 2027.
Santander Open Academy
Programming in Python, Programming
Completed a course in Programming in Python.
Udemy
Ethical Hacking and Cybersecurity, Cybersecurity
Completed a course in Ethical Hacking and Cybersecurity.
Availability
Location
MexicoAuthorized to work in
Social media
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