Software Engineer

Hi, I'm João Campos.

A passionate Software Engineer.

I build full-stack web applications, AI agents, and reliable engineering systems — currently at Neptune Software, previously trained across networks, systems, and IoT. This site is itself a proof-of-concept for the Core-Shell architecture I use to ship fast, minimal sites.

Download CV Contact me

Background

Experience & Education

Work Experience

Neptune Software

Junior Software EngineerFull-time · Aug 2026 – Present (2 mos)

Software Engineer InternInternship · Jan 2026 – Jul 2026 (7 mos)

Owned engineering issues end-to-end on a customer platform instance, from login errors to PDF viewer bugs and master data sync.
Researched how a layered data-architecture standard could be implemented on the company's platform, and presented the findings.
Maintained a customer data project: fixed bugs and built workflows and Salesforce integrations to bring in new data.
Learned an existing project and Salesforce from the ground up to contribute to a high-volume alerts system; recognized at the project's presentation meeting.
Built an AI agent from scratch, solo; well received by the team.
Rebuilt and improved an existing internal AI tool, applying what I learned building that agent.

Education

Bachelor's Degree in Computer Engineering

Polytechnic Institute of Tomar · September 2022 – July 2025

Full-stack web development with React, ASP.NET Core MVC, HTML/CSS/JavaScript.
Programming in Java (OOP, Distributed Computing), Python (AI/ML), C (Operating Systems).
MySQL databases, PhpMyAdmin and advanced data management.
DevOps with Docker, Vagrant and network infrastructures (GNS3, Extreme Cloud IQ).
Android mobile development, IoT (MQTT), Machine Learning (TensorFlow, Scikit-learn).
Cyber security (Kali Linux), virtualization (VMware, VirtualBox) and server administration.
Bachelor's Final Project: Datacenter management system focused on critical infrastructures.

Bachelor's Degree in Energy Technologies (1st year)

Polytechnic Institute of Setúbal · September 2021 – July 2022

Solid foundation in Mathematics, Physics (Mechanics, Thermodynamics) and Chemistry.
Technical skills in AutoCAD for technical drawing and schematics.
Knowledge in electrical engineering and electrical equipment analysis.
Experience in complex problem solving and analytical thinking.
Conscious transition to Computer Science due to greater affinity and passion for the field.

Toolbox

Skills

⭐ marks the tools I reach for most often within each category.

Programming & Development

Java ⭐PythonC# ⭐HTMLCSSJavaScriptSQLReactASP.NET Core MVC ⭐MySQLPHPMyAdminAndroid Studio ⭐

Networks & Cybersecurity

Cisco IOS ⭐BashPacket Tracer ⭐GNS3 ⭐ExtremeCloud IQKali Linux ⭐WiresharkSNMP

Systems & Architecture

MASM (Assembly)CC++Bash ⭐Windows Server 2022Linux ⭐Unix ⭐GrubVirtualBox ⭐VMware ⭐GPartedGCCLogisimDOSBoxEMU8086Docker ⭐Vagrant

AI & Data

Python ⭐RAnacondaJupyter Notebook ⭐Scikit-learnTensorFlowWekaPower BI ⭐Power Apps ⭐Google Colab

Internet of Things

PythonMicroPython ⭐C++ThonnyMQTT ⭐SNMPRaspberry Pi ⭐Arduino IDEProteus VSM

Engineering & Management

Visual ParadigmGitGitHub ⭐GitHub Projects ⭐TeamsNotion ⭐Sharepoint

Work

Projects

Academic and personal projects, with more being pushed to GitHub over time.

Core-Shell

A rapid-deployment web framework for local businesses: an immutable Astro "Core" paired with a per-client JSON "Shell" — swap one config file to re-skin an entire site. This portfolio is built on the same Astro stack.

Architecture / Personal

Datacenter Management System

Bachelor's final project at IPT: a datacenter management system focused on critical infrastructures, built on the full-stack, database, and DevOps skills from the degree.

Bachelor's Final Project

More on GitHub

Academic and personal repositories are continuously being pushed and cleaned up on my GitHub profile — browse the full list there.

github.com/campos404