Projects

Fuel management and fintech platform built as a multi-app monorepo (backend, mobile, admin web, station gateway) with a multi-tenant financial system, real-time hardware communication and full cloud infrastructure on AWS.

AI-powered document processing pipeline supporting 18+ document types using a 10-stage orchestration architecture, hybrid LLM classification and a self-training loop with LLM-as-Judge evaluation.

Fintech platform with ACH payments (SmartPay), double-entry accounting ledger, UNIT API integration, fuel cards, payroll and billing modules serving trucking fleets across 30–50 active SaaS clients.

Bidirectional AR integration system connecting ServiceChannel (facility management) with FSG (ERP), automating work order data flow end-to-end using Hexagonal Architecture and XState state machines.

Social media REST API with 5 independent microservices (auth, users, posts, likes, gateway), Kafka for async event-driven communication, per-service Redis caching and Docker Compose containerization.

CQRS-based blog platform with an API Gateway as single entry point, MongoDB for reads, MySQL for writes and RabbitMQ for event-driven synchronization between services. React + TypeScript frontend.

SaaS subscription platform with Stripe Checkout, Billing Portal and webhook event processing for full subscription lifecycle management, Firebase Authentication and Firestore mirroring for low-latency reads.

Personal portfolio built with Next.js 15 App Router, hybrid SSR/CSR architecture, AI chat assistant powered by Claude Haiku with tool-calling, bilingual support (ES/EN) and custom design system.