devjeej.

Available for freelance & projects

I build systems and keep them running.

Full stack developer based in São José dos Campos, Brazil. I work with Laravel, Linux servers and deployment — from code to production.

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Jean Lucas at his Fatec graduation

About

About me

I'm a full stack developer based in São José dos Campos, Brazil. I graduated in Multiplatform Software Development at Fatec and currently work at SIATT with Laravel systems, Linux servers and deployment.

I'm currently taking a postgrad in Software Engineering with Applied AI — which is why I keep bringing more AI into the systems I build.

Education

Postgrad (in progress) — Software Engineering with Applied AI · UniPDS

Fatec São José dos Campos — Multiplatform Software Development

Journey

Where I've been

Where I've worked and what I built at each place.

  1. 2023

    MIDIASIM

    Web Development

    WordPress and plain PHP websites: building and customizing plugins, maintenance, and my first Laravel systems.

    • WordPress
    • PHP
    • Laravel
    • MySQL
  2. 2024

    SIATT — Internship

    Full Stack Development

    Internal systems in Laravel. Started getting my hands on the server: deployment, Apache and a Linux (Ubuntu) environment.

    • Laravel
    • Apache
    • Ubuntu
    • Deploy
  3. 2025 — present

    SIATT — Full-time

    Full Stack Development

    Laravel systems, reverse proxy setup and Apache/Ubuntu servers, deployment and DevOps. I work close to the teams to understand the client's pain before writing code.

    • Laravel
    • Reverse proxy
    • Apache
    • DevOps
    • Linux

What I care about

What I focus on

The areas where I get most hands-on.

Systems

Designing and building full web applications — backend, database and interface — around a specific problem.

Automation

Taking repetitive tasks off people's hands: system integrations, routines and scripts. I use AI and RAG when the problem calls for it.

Infrastructure

I deploy and maintain services on Linux VPS: Docker, deployment, metrics in Grafana, alerts and backups.

Products

Taking an idea from prototype to product, thinking about real usage, cost and the path to a SaaS.

Projects

A few projects

A selection of what I've built.

Tickets & whistleblower channel

  • Laravel
  • MySQL
  • Vue
Context
How do you receive tickets, questions and reports with confidentiality and traceability?
What I did
Web system in Laravel/MySQL to register and track tickets, questions and reports, with access control and handling of sensitive data.
Outcome
Intake centralized in one place, with history and confidentiality guaranteed.

RAG chatbot for internal FAQ

  • LLM
  • RAG
  • Python
Context
How do people find internal answers without asking the same things over and over?
What I did
RAG chatbot that answers from the internal knowledge base, retrieving the right context before generating the response.
Outcome
Faster, more consistent answers — less back-and-forth over already-documented info.

Mercado Livre API integration

  • Laravel
  • REST API
  • Webhooks
Context
How do you run a marketplace account without repetitive manual work?
What I did
System to manage the Mercado Livre API integration — authentication, data sync and routine automation.
Outcome
Marketplace operation integrated into the system, with fewer manual steps.

VPS infrastructure & observability

  • Linux
  • Docker
  • Grafana
  • Prometheus
Context
How do you run a service reliably and know the moment something breaks?
What I did
Linux VPS with Docker, monitoring (Grafana, Prometheus, Uptime Kuma), systemd and a backup routine.
Outcome
Service live with metrics, alerts and recovery — real operations, not just a deploy.

Contact

Let's talk

Open to freelance and projects. Reach me wherever you prefer.

Send an emailGitHubLinkedIn

edicaojean@gmail.com