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Profile
E. Burgos

Portfolio

My portfolio

Own products built from scratch, plus professional and personal projects — microfrontends, DApps, mobile apps, SaaS and more.

Flagship

Own products

Large-scale products designed, built and shipped from scratch as a Senior Forward Engineer.

Product 01SaaS · In production

DisplayAds

AI-powered digital signage for retail businesses

SaaS platform to remotely manage advertising screens: campaigns, media content, analytics and AI content generation (Gemini). Nx monorepo with a NestJS backend, multi-tenant React panels, a Next.js landing with RAG chat, and custom agents for Raspberry Pi and Android with offline playback and real-time WebSocket sync.

6

Apps in the monorepo

2

Hardware agents

AI

Multi-modal Gemini

RT

WebSocket sync

  • Multi-tenant management of orgs and devices
  • Campaigns with scheduling, playlists and analytics
  • AI-generated content: text, image and video
  • Raspberry Pi agent with offline playback
  • Android client in kiosk mode
  • Commercial landing with quoting and RAG chat
NestJSReact 19Next.jsPrismaPostgreSQL + pgvectorRedisSocket.ioPythonNxTucu UI
Visit site

Product 02SaaS · In production

Óptica Gestión

The all-in-one management platform for optical stores

Multi-store platform for optical businesses: sales, budgets, prescriptions, stock, cash register, taxes and team, with MercadoPago payments and a built-in AI assistant. At its core is a 29-module NestJS API with Prisma and PostgreSQL (28 models), Bull queues, real-time notifications and Google OAuth; the local-first frontend syncs against that API through Dexie and keeps working offline.

29

NestJS API modules

28

Prisma models

4

Apps in the monorepo

AI

Assistant with tools

  • NestJS API: sales, stock, cash register, taxes, orders and permissions
  • Multi-store with an admin backoffice
  • Integrated MercadoPago payments
  • AI assistant via OpenRouter with business tools
  • Local-first: Dexie syncs and works offline
  • Real-time notifications and job queues
NestJSPrismaPostgreSQLReact 19TypeScriptNxDexieSocket.ioMercadoPagoOpenRouter
Visit app

Product 03AI + Trading · Public repo

Crypto Trader

Autonomous crypto trading powered by hybrid AI

Fullstack platform with an autonomous agent that trades BTC and ETH on Binance, combining classic technical analysis (RSI, MACD, Bollinger, EMA) with multi-provider LLM reasoning (OpenRouter, Claude, OpenAI, Gemini and more). Multi-user, with three operation modes —sandbox, testnet and live, safe by default—, full transparency of every decision and a real-time WebSocket dashboard.

7

LLM providers

6

AI agents

3

Operation modes

200+

Models via OpenRouter

  • Autonomous agent that detects and trades BTC/ETH on Binance
  • Hybrid AI: technical indicators + LLM reasoning
  • Sandbox, Testnet and Live — sandbox-first by default
  • Every decision logged with indicators and reasoning
  • Real-time dashboard with candles, P&L and positions
  • Multi-user with isolated keys and funds
React 19NestJS 11Prisma 7PostgreSQLRedisSocket.ioBulllightweight-chartsNx
Open app GitHub

Product 04Open Source · MIT

SDD Harness

CLI to bootstrap AI-agent-ready repos with the SDD methodology

CLI published on npm that scaffolds AI-agent-ready repositories with Spec-Driven Development: Nx monorepos, standalone apps, or installing the SDD system on an existing project. Ships a portable kit with agents, skills, gates and strict JSON Schemas, a dual harness for Claude Code and GitHub Copilot, Docker services and MCP configuration.

3

Scaffolding modes

7

SDD agents

16+

Kit skills

7

App types

  • Interactive scaffolding of Nx monorepos or standalone apps
  • Portable SDD kit: agents, skills, gates and schemas
  • Dual harness: Claude Code + GitHub Copilot via symlinks
  • NestJS, React, Next.js, Fastify, Hono, Spring Boot and Python apps
  • Docker services with healthchecks (PG, Redis, RabbitMQ, MinIO)
  • Config-as-code with Zod validation and interactive docs
TypeScriptNode.jsNxesbuildZodReactViteTailwind CSS
Live docs GitHub npm

Product 05Open Source · MIT

Tucu UI

A complete, production-ready design system for React

Component library built from scratch: a multi-layer theming engine with 34+ color presets, automatic layouts —including macOS Sonoma and Tahoe with Liquid Glass—, a full form system, charts, blockchain components and its own MCP server for AI agents. Fully typed, accessible and published on npm.

95+

Components

34+

Theme presets

5000+

Icons

AA

WCAG 2.1

  • Multi-layer theming with dark/light and RTL
  • macOS Sonoma & Tahoe layouts with Liquid Glass
  • Form system powered by React Hook Form
  • Ready-to-use charts and blockchain components
  • Standalone and microfrontend routing
  • MCP server for AI-agent integration
React 19TypeScriptTailwind CSS v4ZustandFramer MotionRechartsNxVite
Live docs GitHub npm