Jefferson Fidelis

Portfolio

Projects

Curated engineering and AI work, filterable by category. Smaller practice builds live in the archive below.

Hand-tracking drawing system rendering a line on screen as a finger moves in front of the camera
Artificial Intelligence

Vision-Based Drawing System

Touchless, gesture-based drawing using real-time hand tracking.

PythonOpenCVMediaPipeNumPy
Live video feed with bounding boxes, class labels, and confidence scores drawn around detected objects and people
Artificial Intelligence

Real-Time Object Detection

Real-time object and person detection with YOLOv4-Tiny on Darknet.

PythonDarknetYOLOv4-TinyOpenCV
Terminal output showing a CrewAI multi-agent run generating a travel itinerary and budget breakdown
Artificial Intelligence

Travel Planner — CrewAI

Multi-agent LLM orchestration that plans a trip itinerary and budget end to end.

PythonCrewAILLMspython-dotenv
GitPerfil search interface for looking up a GitHub user's public profile
Web Development

GitPerfil

A fast, focused GitHub profile explorer.

ReactGitHub REST API
Steroid Manager dashboard showing product registration and sales tracking screens
Web Development

Steroid Manager

Full-stack inventory, sales, and profit-tracking system for a retail shop.

Node.jsExpressMongoDBBootstrap
Barbearia Dignissimo landing page with an online appointment booking call-to-action
Web Development

Barbearia Dignissimo

Online booking site for a premium barbershop brand.

ReactCSS
Student registration form with enrollment number, name, two grades, and calculated average
Web Development

Student Registration System

Student registration with automatic grade-average calculation.

JavaScriptHTMLCSS

Other projects

Earlier practice builds and clones — kept for the record, not the highlight reel.

  • Pomo

    Pomodoro-timer web app built during an AWS/React scholarship challenge.

    Live demo

  • GitWiki

    A Git/GitHub reference wiki.

    Live demo

  • First Portfolio

    My first developer portfolio site.

    Live demo

  • Pokedex

    Pokémon browser with paginated "Load More" fetching.

    Live demo

  • Spider-Man Multiverse

    Fan site exploring Spider-Man across three film actors.

    Live demo

  • Star Wars Site

    Star Wars fan site built during a front-end workshop.

    Live demo

  • Notícia Cidade

    News-portal UI practice project.

    Live demo

  • Spotify Clone

    Spotify marketing landing-page clone.

    Live demo

  • Yu-Gi-Oh! Site

    Fan site with a Yu-Gi-Oh! card catalog.

    Live demo

  • Finans

    Personal-finance landing-page UI clone.

    Live demo

  • Calculadora

    Basic arithmetic calculator app.

    Live demo

  • Mata Mosquito

    Browser mini-game with difficulty tiers.

    Live demo

  • Museu Nacional

    Museum website with exhibits, gallery, and visit booking.

    Live demo