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MGS.

Matheus G. Spartalis

Engineer / Builder / WebXR

I build digital experiences for the spatial web.

Computer engineer specialised in digital product development, WebXR, immersive experiences and spatial interfaces.

01 / WebXR02 / Spatial computing03 / Digital products
Spatial field / node mapwebxr ready

Visualização abstrata de um campo espacial com nós conectados representando pontos de interesse em experiências WebXR.

01About

Engineering meets imagination.

I'm a computer engineer and digital product builder. My work combines software engineering, interface design, data, automation and immersive technology to turn concepts into real digital experiences.

The current focus is WebXR, spatial computing, 3D interfaces and digital products — building systems that operate between software, data and the physical world.

EngineeringProduct DevelopmentWeb DevelopmentWebXR3D InterfacesAPIsAutomationAINo-Code / Low-Code

Trajectory

  1. 01Engineering
  2. 02Software
  3. 03Product
  4. 04Spatial web
02Selected work

Selected Work

01WebXR / Spatial Tourism

Pickty

Turning places into interactive experiences.

A tourism experience platform built on geolocation, WebXR and spatial interaction.

  • WebXR
  • A-Frame
  • AR.js
  • Three.js
  • Geolocation
  • APIs
View case2025 · in-development
lat -23.5012 / lon -46.6044 / z 10
02Spatial Web / Platform

GeoAR

Location as a publishing surface.

Infrastructure to create, publish and distribute location-based augmented reality experiences.

  • WebXR
  • AR.js
  • A-Frame
  • APIs
  • Geolocation
View case2025 · in-development
lat -23.5112 / lon -46.6144 / z 20
03WebXR / Framework

Pax Pocket

A small framework for a large surface.

A lightweight framework for building augmented and spatial reality experiences on the web.

  • JavaScript
  • WebXR
  • A-Frame
  • Three.js
View case2024 · prototype
lat -23.5212 / lon -46.6244 / z 30
04Digital Products / Data

Digital Operations Dashboard

Operations, made legible.

A digital management system that turns operational data into dashboards, indicators and alerts.

  • React
  • Python
  • APIs
  • PostgreSQL
  • Automation
View case2024 · live
lat -23.5312 / lon -46.6344 / z 40
05Marketplace / Digital Ecosystem

Onmaq

Architecture for a marketplace ecosystem.

A digital ecosystem connecting buyers, suppliers, logistics and operations in agribusiness.

  • Product Architecture
  • APIs
  • Data
  • Automation
  • No-code
View case2023—2026 · live
lat -23.5412 / lon -46.6444 / z 50
04The spatial web

The Spatial Web

The web is becoming spatial.

WebXR turns the browser into a spatial interaction layer: no install, no app store. A URL starts to exist inside space — anchored to objects, environments and real coordinates.

That is where software, geometry, sensors and data operate on the same surface.

The browser as a universal runtime — no install, no store, no friction.

05Tools I build with

Tools I build with

Frontend

  • JavaScript
  • TypeScript
  • React
  • Three.js
  • A-Frame

XR

  • WebXR
  • AR.js
  • 8th Wall concepts
  • Spatial interfaces

Backend

  • Python
  • Flask
  • FastAPI
  • REST APIs

Data

  • Supabase
  • Xano
  • PostgreSQL
  • APIs

Automation

  • Make
  • Webhooks
  • API integrations

Product

  • Lovable
  • Adalo
  • No-code / Low-code

AI

  • AI APIs
  • AI-assisted development
  • AI automation
06Engineering mindset

I don't just build interfaces.
I build systems.

01

Architecture

Systems thinking and product architecture: flows, data and well-defined boundaries.

02

Experience

Intuitive interfaces and digital experiences that respect the user's attention.

03

Technology

Modern technology used to turn ideas into products that actually run.

04

Experimentation

Fast prototyping and continuous exploration of new interfaces and technologies.

07How I build

How I build

  1. 01

    Discover

    Understand the problem, the context and the opportunity.

  2. 02

    Model

    Structure product, data and architecture.

  3. 03

    Prototype

    Quickly build a working experience.

  4. 04

    Engineer

    Turn the prototype into a product.

  5. 05

    Deploy

    Ship, integrate and put it into operation.

  6. 06

    Evolve

    Measure, learn and improve.

08Experience

Building products, not just software.

My experience is measured in products that exist and run: marketplaces, spatial platforms, operational dashboards, automations and prototypes that became systems.

Areas of practice

  • Digital Products
  • Marketplaces
  • WebXR
  • Spatial Computing
  • Automation
  • AI
  • Data
  • APIs
  • No-Code
  • IoT

42+

Digital products

10+

Years building

20+

Technologies

Experiments

09Contact

Have an idea worth building?

I'm interested in projects involving digital products, WebXR, spatial experiences, technological innovation and complex problems.

Based in
Tangará da Serra, Mato Grosso — Brazil
Status
Available for select projects