TNLcomputer
Jorge Gustavo Martinez
I design and build web solutions focused on technical clarity, data and business results.
About me
Full-Stack Developer with 30+ years in technology: from administrative systems and hardware to modern web applications, APIs, databases and applied artificial intelligence.
I work with Laravel, PHP, Java/Spring, Python, JavaScript, MySQL and BI tools. I care about building useful, maintainable, results-driven products.
Experience
2019 — Present
Web application development, database integration and e-commerce. Stack: Laravel, PHP, JavaScript, MySQL.
2001 — 2017
Front-end with HTML, CSS and PHP; network and hardware setup and maintenance, and user support.
1987 — 1990
Analysis and programming of administrative systems in corporate environments.
Projects
A selection of client systems and recent projects. The rest is on GitHub.
Fraschina — Management system
Management system for a flour distributor that replaced Excel sheets and a legacy PHP app: customers, orders with VAT, delivery sheets, a mill order hub with revisions, delivery tracking and reports. Includes role-based permissions, full audit trail, PDF/Excel export, email dispatch and scheduled jobs.
Team 48 platform for analyzing electricity consumption: dashboard, consumption history, Machine Learning–based analysis and saving recommendations. Includes JWT and Google login, email verification, an admin panel and a multilingual UI with light/dark theme.
Forum backed by a Spring Boot REST API with stateless JWT authentication: topics, nested replies, accepted answers and role/authorship-based permissions. The JavaScript frontend consumes the API and includes a user/topic admin panel and dark mode.
Academic fishing-gear e-commerce built with React: catalog by category, search, favorites, cart and a simulated checkout that validates and decrements stock in a server-side transaction. Includes a login-protected admin panel for products, categories, image gallery, shipping zones and announcements.
Website and platform for a performance tuning shop: services, news and dyno results, plus online course sales paid via MercadoPago or PayPal. Users access their course videos, and an admin dashboard manages courses, syllabi, offers, payments and users.
SymonSport — Auto service shop system
Web system for an auto service shop: customers register their vehicles, book appointments and place orders, while the shop logs services and work performed. Includes an admin panel for users, appointment types, services and products with prices and stock.
Voll Med API
REST API for managing doctors, patients and medical appointments, with pagination, soft deletes and DTOs. Booking and cancellation business rules are handled by auto-injected validators, and the API is documented with Swagger.
Full-stack project with a Spring Boot backend exposing REST endpoints for movies and series, and a JavaScript frontend that consumes them to show a catalog and detail views. Includes an optional analysis endpoint powered by the OpenAI API.
Website for a car dealer: catalog of new and used cars with their specs, managed from a MySQL database.
Certifications
102 certificates, each one available to download. (Certificate titles are shown as issued, in Spanish.)
Productividad optimizando tu rutina con inteligencia artificial
Alura G9 · Apr 2026
Inteligencia Artificial Preparación para el mercado
Alura G9 · Apr 2026
Low Code e IA con Oracle Apex
Alura G9 · Apr 2026
ChatGPT optimizando la calidad de los resultados
Alura G9 · Apr 2026
Oracle Autonomous Database
Alura G9 · Apr 2026
Administración de MySQL: Seguridad y optimización de la base de datos - Parte 2
Alura G9 · Apr 2026
Open to full-stack opportunities, collaborations and digital product development.