Software that actually shipped.
This is the portfolio of André Figueira, twenty years of production systems and products of my own. I'm not taking on client work right now, the site is just here to show what's been built.
- Building software since 2003
- 7B+ events a year in production
- Not taking on client work
Selected work
Production systems we've built and shipped.
Polyxmedia, Interactive 3D, WebGL
Our Solar System
A cinematic solar system that runs in the browser. Photoreal planets on hand-written GLSL shaders, real orbital mechanics and axial tilts, a procedural score in Tone.js, and a ship you can actually fly. It ships as a web app, an Electron build and a turn-based strategy mode.
Three.js, GLSL, Tone.js, Electron
Explore the systemPolyxmedia, Anti-gravity racer, WebGL
Velocity GP
An anti-gravity racer that runs straight in the browser. Hand-written physics, 19 procedural tracks, 17 ships that each handle differently, online leaderboards, and an original soundtrack with an engine that writes more when the playlist runs out.
Three.js, WebGL, Web Audio API, GLSL
Polyxmedia, Intelligence / Trading
NexusHQ
AI-powered geopolitical-market convergence analysis for macro traders. Synthesizes signals across five layers to detect opportunities before consensus pricing catches up. War room, AI analyst, falsifiable predictions, and broker integration.
Next.js 15, React 19, Claude AI, PostgreSQL
Mitch Sullivan, Marketing / AI
mitchs.ai
AI-powered ad generation platform using RAG architecture to create brand-aligned copy. Ingests knowledge bases, brand guidelines, and campaign data to write ads in the brand's own voice.
Python, Vue.js, OpenAI
Trap Music Museum, Entertainment / E-commerce
Trap Music Museum
Complete e-commerce rebuild consolidating fragmented retail into a unified system. Custom POS integration, real-time inventory sync, headless commerce with Stripe, and automated fulfillment. Handles tickets, merch, and memberships.
Node.js, Vue.js, Stripe
WideZike Inc, Social Network
WideZike
Multi-modal social platform with text, video, audio, and live streaming. Real-time WebSocket infrastructure with sub-100ms delivery and an AI recommendation engine.
React Native, Node.js, WebSocket
Polyxmedia, Infrastructure / AI
txn.dev
Payment infrastructure for AI agents. Instant settlement in ~4ms, sub-cent precision with 8 decimal places, and three integration paths: TypeScript SDK, MCP server for Claude Desktop and Cursor, and a LangChain toolkit.
Next.js, TypeScript, PostgreSQL, Stripe
“The work he did (and continues to do) is better than I could have dreamt.”
Read all testimonialsAbout 18 months ago I took a big decision to pivot my business and needed an engineer who knew how to build an AI specific to my very tight niche. As a non-techie, I needed someone I could trust because this was completely unknown territory for me. Andre was recommended to me by a source I already trusted (another engineer) and so the decision to work with him was easy. The work he did (and continues to do) is better than I could have dreamt and the revenue has gradually climbed every month since its launch in July 2025.
Who we've built for
Strictly a portfolio, for now.
I'm not taking on client work right now, so this site is just here to show what's been built. The portfolio has the products, the client projects and the stories behind the bigger systems.
See the portfolio