Samuel Bezerra Gomes

Architected an autonomous marketing agent that increased user-generated content contribution by 45%. Evaluated and integrated LangChain, LangGraph, LlamaIndex, and Haystack for multi-agent reasoning and decision-making pipelines. Engineered scalable RAG architecture for proprietary data, containerized AI microservices, and implemented LLM observability with LangSmith and LangFuse. Optimized multimodal AI models for on-premise execution and expanded AI capabilities across multiple specialized platforms.

Freelance web and mobile app developer building apps with NextJS, React Native, TypeScript, Expo, Node.js, and SQLite; deployed on Fly.io; CI/CD pipelines with GitLab; integrated OpenAI APIs and open-source LLMs for content generation, optimization, and group matching; built backend to scale across platforms (Facebook, WhatsApp, Telegram) in real-time; led sprint planning, retrospectives, and backlog prioritization with a cross-functional team of 10+; implemented automated testing, performance monitoring, and secure authentication flows; fostered engineering culture and knowledge sharing.

Led product ownership and mobile development for fintech/crypto platforms; developed and maintained 6+ mobile apps (iOS & Android); migrated native mobile developers to Xamarin; led developer training and evangelism for teams of 8+; implemented automated UI testing via Appium; focused on code quality, maintainability, and cross‑platform performance; delivered end-to-end mobile solutions; worked in a Scrum-based Agile setup with bi-weekly sprints, backlog grooming, and QA collaboration; won a Microsoft prize for the Allo Tutor hackathon project.