Igor Marques

I build AI automation and GTM systems that connect sales and operational workflows to reliable, maintainable execution.

As an independent AI Automation Engineer, I design multi-step n8n automations across REST APIs, webhooks, CRMs, messaging tools, databases, and LLM services. I take projects from process mapping and architecture through testing, deployment, documentation, and ongoing troubleshooting.

For GTM AgentOS, I built a production-style FastAPI platform using Claude, LangGraph, RAG, MCP, Voyage AI embeddings, and PostgreSQL/pgvector to qualify and route leads with grounded research, source attribution, approval gates, and auditability. I also built an authenticated operator console and maintained 118 automated tests across major flows.

I’ve also delivered LedgerGuard AI for financial reconciliation and exception investigation, plus a Hotmart Recovery Engine for abandoned-cart recovery. My work emphasizes practical GTM outcomes, security controls, observability, idempotency, and human-reviewed decisions.