ROLE: SOFTWARE DEVELOPER FOCUS: SYSTEMS + AI

Eduardo
Ruiz

Full Stack Developer with experience in developing and maintaining web systems, backend, APIs, databases, integrations, cloud architecture, and business rules.

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Eduardo Ruiz

About

The evolution from understanding business to building the system.

My career started in corporate customer service and B2B sales, which gave me a solid foundation in understanding real business pain points. Today, I work as a Full Stack Developer focused on backend, databases, APIs, and cloud architecture. My mission isn't just to write code, but to solve complex problems through efficient and sustainable systems.

AI SPECIALIZATION: 2026 — 2027
Currently specializing in Artificial Intelligence, expanding my scope to intelligent systems, Machine Learning, Neural Networks, and Virtual Assistants.

What I Do

  • Backend & Systems
  • Business Rules & Logic
  • Database Architecture
  • APIs & Integrations
  • Artificial Intelligence

Experiences

Apr 2025 — Present

Full Stack Developer

Assectra Segurança do Trabalho

Development and maintenance of internal systems focused on document management, lists, and controlling employees and contractors. Creating optimized SQL queries with multiple relationships. Focused on backend logic and complex business rules.

PHP CodeIgniter 3 Laravel 12 MySQL AngularJS REST APIs Docker
Jun 2023 — Dec 2023

Full Stack Developer

ioPay

Web applications using advanced Laravel concepts (queues, jobs, Horizon). Complex MySQL queries (triggers, procedures). AWS Architecture (load balancing, RDS Aurora, EC2, CodeDeploy).

Laravel PHP AWS MySQL jQuery
Jan 2023 — Mar 2023

Full Stack Developer - Temporary Contract

Potencialize Digital

Development of web applications and REST APIs applying OOP concepts, SOLID principles, and agile methodologies (Kanban).

Dec 2021 — Jun 2022

Full Stack Developer - Internship

Senac São Paulo

Maintenance of web applications with front-end and back-end technologies (Angular, Java, and Spring Boot). Ticket resolution and agile practices (Scrum, Kanban).

Previous Roles & Business Trajectory

2021
Email Marketing Developer

All In Marketing Cloud

2019 — 2021
B2B Sales Representative

Frigelar

2014 — 2019
B2B2C Sales Representative

Nelcar

2013
Trainee / Internship

CPTM

Education

CURRENTLY EXPLORING

Artificial Intelligence

Postgraduate Degree

Centro Universitário Senac

Aug 2026 — Aug 2027

Internet Systems (Associate)

Centro Universitário Senac

Feb 2020 — Jun 2022 (Completed)

Medical Radiology Technician

Universidade Sant'Anna

Feb 2015 — Jun 2017

Certifications

  • • Java (SENAI)
  • • Android / Kotlin (MadCode)
  • • UI/UX (MadCode)
  • • English for Devs (MadCode)
  • • Electronics / Hardware (SENAI)

Stacks

Currently Exploring (AI)

  • Artificial Intelligence
  • Machine Learning
  • Neural Networks
  • Virtual Assistants

Backend

  • PHP (Laravel 12, CodeIgniter 3)
  • Java (Spring Boot)
  • REST APIs
  • OOP, SOLID, Design Patterns

Database

  • MySQL / MariaDB
  • Relational Architecture
  • Redis

Frontend

  • JavaScript (ES6+)
  • Angular / AngularJS
  • jQuery
  • HTML5, CSS3, Bootstrap 5

Cloud & Architecture

  • AWS (EC2, RDS Aurora, Load Balance)
  • Docker
  • Queues, Jobs, Horizon
  • Agile Methodologies (Scrum, Kanban)

Projects

Pet Miau

Backend development using Laravel. Implementation of business rules in PHP and structuring the MySQL database.

See Details

Price Monitor

Automated system to monitor prices, notifying users via cron jobs. Built with PHP and JavaScript.

See Details

ERP System

Development of ERP modules focused on performance, database integration (MySQL), and business rules with CodeIgniter.

See Details

Contact

LET'S
BUILD
SOMETHING.

I am available for new challenges, systems development, and corporate architecture.

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