João Guilherme Reinaldo Costa

I’m João, an Automation Engineer and AI builder with 3+ years of experience turning business needs into working conversational AI agents and automations. I’ve built and operated an AI SDR agent in n8n connected to messaging and a fully automated CRM workflow, handling high-volume outbound messaging and helping book sales meetings each day. I’m also product-minded and deliver websites and landing pages fast using Webflow, WordPress, and React—typically in about 3 business days.

I work remotely from Brasília (UTC-3) and combine hands-on AI agent development with practical sales and customer-facing experience. My background includes building no-code and low-code agent automations with n8n and LLM APIs, integrating REST APIs and webhooks, and supporting CRM and messaging pipelines. Fluent in English and Portuguese, I manage deliverables independently, focusing on conversion-ready systems that consistently move leads forward.