Rafii Manggala

I build production systems end-to-end—from architecture and development to deployment and ongoing maintenance. I’m an AI automation specialist and full-stack developer focused on integrating AI agents and LLMs into N8N workflows, so teams can ship faster with reliable automation.

With N8N, I’ve designed 10+ independent automation workflows that run autonomously and stay production-stable. I built a fully automated N8N pipeline that generates, edits, and posts videos to TikTok and Instagram on autopilot, delivering 557+ hours of ongoing work with zero manual intervention and 24/7 error handling.

On SaaS product delivery, I’ve shipped major feature sets and modernization work. I delivered all 18 planned features for an educational SaaS platform serving 995+ schools and 12,400+ users, including an AI Tutoring Companion (Claude API), teacher AI Practice Set Generator, and AI Performance Insights—built with .NET 9.0 CQRS, Angular 11, and PostgreSQL migrations.

In health-tech systems, I build structured pipelines that turn messy inputs into decision-ready outputs. I’m developing a health dashboard that aggregates blood tests, DNA results, and wearable data into a unified biomarker scoring system, integrating Oura Ring OAuth 2.0 and a YAML-based clinical scoring specification (v4.16) across 50+ biomarkers, then deploying and maintaining with React + Node.js + MongoDB Atlas, Firebase Hosting, and Render—while continuously evaluating AI output quality, consistency, hallucinations, and safety.