Linear-style task manager with AI assistant for conversational queries and autonomous actions (insights, task creation, messaging). Event-driven architecture with a hybrid agentic approach: function calling for structured operations and RAG with pgvector for semantic retrieval.
Conversational appointment booking with event-driven architecture. AI assistant powered by LangChain and RAG (pgvector), WhatsApp automation, multi-channel support.
Built evaluation and testing infrastructure for Fin AI across Rails, TypeScript/React, and Python. Shipped core Test page capabilities used by 50%+ of adopting companies, launched Impersonation to open beta for thousands of customers, and improved Messenger reliability for millions of end users by fixing 4 critical bugs.
Led a critical investment data pipeline with Sidekiq Batches, reducing end-to-end processing time by 90%+. Implemented Datadog monitoring on AWS, designed a real-time funds calculation service that increased processing speed by 50%, and achieved 99.2% test coverage for the Holdings API.
Built and launched a full-stack exam platform with Elixir/Phoenix + LiveView, serving 6,000+ paying doctors in Brazil. Delivered registration + payments, secure exam distribution with end-to-end encryption, and an admin portal for exam operations, then deployed and operated it on AWS with PostgreSQL.
Progressed from Senior Software Engineer to Lead Engineer, leading 5 developers across 4 projects. Drove backend delivery with Ruby on Rails, introduced GraphQL across multiple products, and integrated REopt Lite API and NREL SAM to expand renewable-energy capabilities.
Federal University of Piauí (UFPI)
2009 — 2014