Projects

Selected work demonstrating expertise in backend architecture, AI systems, and cloud infrastructure.

Live Portfolio Projects

From davidsd.dev
  • Qullqa Collector — Designed for collectors using Vue.js, Nuxt 3, TypeScript, Tailwind CSS. Live Demo
  • ArepaFlame ChatIA — LLM-based chat powered by Cloudflare Workers. Live Demo · Source Code
  • KmlMotor (zoom-googlemaps) — KML engine for interactive maps. Source Code

Aerya.ai — AI Agents Platform

Current AI GCP

Currently developing intelligent AI agents for enterprise automation and workflow optimization. Building scalable backend systems with advanced LangGraph orchestration and multi-agent architectures on Google Cloud Platform.

Current Focus

  • Multi-agent orchestration with LangGraph for complex business workflows
  • LLM integration and prompt engineering for enterprise use cases
  • Scalable backend architecture on Google Cloud Platform
  • Vector search with AtlasVector
  • Real-time agent collaboration and state management
  • API design for AI agent interoperability

Tech Stack

  • LangGraph
  • LangChain
  • Python
  • Google Cloud Platform
Visit Aerya.ai

AI Flight Search Agents

Artificial Intelligence

Autonomous agent system for intelligent flight search and route optimization. Processes real-time availability queries across multiple airline reservation systems (PSS) using natural language interfaces.

Technical Highlights

  • Multi-agent orchestration using LangGraph for complex query workflows
  • Vector search with AtlasVectorSearch for semantic route matching
  • Real-time PSS integration (KIU) for live availability
  • Natural language processing for flexible user queries
  • Caching layer with Redis for performance optimization

Architecture Stack

  • LangChain
  • LangGraph
  • Python
  • Node.js
  • AtlasVectorSearch
  • APIs de reservas

SaaS POS Platform

SaaS Cloud

Cloud-native Point of Sale platform serving multi-tenant businesses. Serverless architecture on Cloudflare enabling instant deployment, global edge distribution, and automatic scaling.

System Features

  • Multi-tenant SaaS architecture with data isolation
  • Serverless backend on Cloudflare Workers
  • Edge-distributed SQLite with Cloudflare D1
  • Type-safe data layer using Drizzle ORM
  • Real-time inventory synchronization
  • Offline-capable PWA frontend
  • Integrated payment processing
  • Automated receipt generation

Technology Stack

  • Nuxt 3
  • TypeScript
  • Vue.js 3
  • Cloudflare D1
  • Drizzle ORM
  • Tailwind CSS
  • Cloudflare Workers

Mining Infrastructure

Infrastructure Hardware

Technical oversight and infrastructure deployment for industrial-scale Bitcoin mining operations. Designed monitoring systems, cooling solutions, and remote management infrastructure.

Responsibilities

  • Hardware deployment and facility planning
  • Custom monitoring stack with Prometheus/Grafana
  • IoT sensor integration for environmental tracking
  • Network architecture and security hardening
  • Energy efficiency optimization and reporting
  • Remote alerting and management systems

Infrastructure Stack

  • Antminer S23 Hyd
  • Antminer S21
  • Sistemas de cooling
  • IoT sensors
  • Prometheus/Grafana
  • Docker

Workflow Automation Platform

Automation

Event-driven automation system integrating AI agents, external APIs, and business process workflows. Reduces manual operations through intelligent orchestration.

Capabilities

  • Visual workflow designer with n8n
  • AI-powered decision nodes using LangChain
  • Multi-service API integrations
  • Event-driven triggers and webhooks
  • Automated data synchronization pipelines
  • Approval workflows with notifications

Integration Stack

  • n8n
  • Node.js
  • APIs REST
  • Webhooks
  • LangChain

Additional Work

  • RESTful APIs — Multiple APIs designed with clean architecture
  • Event-Driven Systems — Implementations with RabbitMQ and Pub/Sub
  • SaaS Platforms — Scalable multi-tenant architectures
  • RAG Systems — Retrieval augmented generation for LLMs