Brandon.Gento
Available for projects

Hi, I'm Brandon Gento

I build scalable web applications and AI-powered systems with Next.js, NestJS, and PostgreSQL.

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About Me

I'm a Systems and Computer Science Engineer from Universidad Mariano Gálvez de Guatemala, and I'm currently pursuing a Master's in Information Security. I'm a full-stack developer with hands-on experience designing and shipping real-world solutions across domains like agriculture, municipal systems, and real-time applications. I work with modern technologies such as Next.js, NestJS, and PostgreSQL, with a strong focus on backend architecture, applied artificial intelligence, and performance optimization.

Brandon Gento

Experience

My professional journey building and shipping software for real clients.

  1. SISMAUS

    Full Stack Developer · Home Office

    Oct 2024 – Feb 2026
    • Built and refactored components for electronic health record systems, an internal sales system, and a municipal billing system.
    • Developed full-stack solutions with Next.js, NestJS, and Supabase, building and optimizing APIs.
    • Coordinated requirements gathering with stakeholders and ran client-facing demos.
    • Managed server administration and production deployments.

  2. Municipalidad de Retalhuleu

    Full Stack Developer · Retalhuleu

    Feb 2025 – Nov 2025
    • Led the development of the institutional web platform and administrative systems.
    • Designed the backend architecture with NestJS for multiple systems, including public information access and the management of the DMM's social programs.
    • Built the public website and the admin panel with Next.js.
    • Integrated PostgreSQL with Prisma ORM and deployed the production infrastructure on Hetzner.

  3. Asociación Nacional del Café

    Vegetative Propagation Assistant · Retalhuleu

    Oct 2021 – Oct 2024
    • Supported the IT area, applied vegetative propagation techniques, and helped digitize agricultural data.

My Projects

A selection of projects that showcase the technical challenges I've solved.

Urbium — Real Estate Management & Urban Development
Urbium — Real Estate Management & Urban Development
Scalable full-stack platform for real estate and urban management: sales, lot management, and payments, with a modular monorepo architecture, interactive maps, and automated document generation.
NestJSPrismaPostgreSQLNext.jsTurborepoLeaflet
AI Agricultural System with Voice Assistant — screenshot 1
AI Agricultural System with Voice Assistant — screenshot 2
AI Agricultural System with Voice Assistant — screenshot 3
AI Agricultural System with Voice Assistant
AI-powered system that turns voice input into standardized agricultural technical records, integrating voice capture, AI processing, and structured storage.
Next.jsExpressPythonPostgreSQLOpenAI
View Project
AI Recycling App
AI Recycling App
AI-powered system that classifies waste through image analysis and provides real-time disposal recommendations, in a cross-platform web and mobile solution.
Next.jsReact NativeExpressOpenAI
Real-Time Social Network — screenshot 1
Real-Time Social Network — screenshot 2
Real-Time Social Network — screenshot 3
Real-Time Social Network
Social network with real-time messaging over WebSocket, a scalable backend architecture for concurrent connections, and Docker-containerized services.
Next.jsExpressTypeScriptWebSocketPostgreSQLDocker
View Project
Agricultural Management System — screenshot 1
Agricultural Management System — screenshot 2
Agricultural Management System — screenshot 3
Agricultural Management System — screenshot 4
Agricultural Management System
Digitization of agricultural workflows and payroll processes, turning manual field records into structured data, with reporting and payroll automation.
LaravelPHPMySQL
Event Management System — screenshot 1
Event Management System — screenshot 2
Event Management System — screenshot 3
Event Management System
Event management system with attendee registration, attendance tracking, and report generation.
DjangoPythonPostgreSQLNext.js

My Skills

Technologies and tools I work with every day.

01Languages

JavaScript

TypeScript

Python

02Frameworks

Next.js

NestJS

Express.js

Django

Laravel

React

03Databases & ORM

PostgreSQL

MySQL

Prisma

TypeORM

04Tools & AI

Docker

Git

GitHub

OpenAI

Langchain

05Infrastructure

Supabase

Coolify

Hetzner

Render

Vercel

Railway

App store

Education

Master's in Information Security

Universidad Mariano Gálvez de Guatemala

In progress
Bachelor's in Systems and Computer Science Engineering

Universidad Mariano Gálvez de Guatemala

2020 – 2025
High School Diploma in Computing

Instituto de Computación Informática Retalhuleu

2020

Contact Me

Have a project in mind or just want to chat? Feel free to get in touch.

[email protected]
Brandon Hermogenes Gento Ailon
GentoBrandon
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