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Portfolio

Shipped, not demoed. Every project here runs in production today.

AI Pipeline

YouTube → Vietnamese Video Auto-Publishing Pipeline

Problem

Creating Vietnamese video content from English YouTube sources took 5+ hours per video — manual transcription, translation, voiceover recording, editing, and publishing.

Solution

End-to-end AI pipeline: paste a YouTube URL → automatic transcript extraction → GPT script rewrite (Vietnamese, context-aware) → TTS voiceover generation → auto-publish to YouTube and website.

Results

  • 5 hours → 15 minutes per video
  • Prompt caching cut API cost by 60%
  • Fully automated publishing workflow
Next.jsNode.jsPythonOpenAI APITTS APIYouTube Data API
Full-Stack Platform

Production Next.js Platform with AI Content Workflow

nguyenxuantai.com

Problem

Needed a professional platform to publish content, capture leads, and distribute resources — with AI-assisted content workflows to scale output.

Solution

Built from scratch: custom CMS supporting 50+ posts, gated resource downloads, lead capture system, service catalog, and AI-assisted content generation workflow.

Results

  • 50+ articles published
  • Automated content workflow
  • Lead capture & resource gating
Next.js App RouterTypeScriptTailwind CSSSupabaseVercelOpenAI API
Internal AI Tools

AI Workflow Automation Suite for E-commerce Ops

Problem

Running Ulstraw (Amazon US #1 New Release 2024) ate 12+ hours/week on manual ops: customer email triage, product description writing, review monitoring.

Solution

AI automation suite: email triage with draft responses, GPT-powered product description generation, review monitoring with Slack alerts, human-approval loop for sensitive actions.

Results

  • 12 hours/week ops time recovered
  • Slack human-approval loop
  • Zero customer reply slip-throughs
n8nOpenAI APINode.jsAmazon APISlack API
Automation Bot

Notion × Telegram Daily Tracker Bot

Problem

Daily task check-ins kept slipping when buried inside a Notion database. Needed a way to track tasks from where I actually live: Telegram.

Solution

Production Telegram bot synced to a Notion task database. 8AM: auto-transitions "Todo" → "Doing" + sends morning briefing. 10PM: sends each task individually with ✅ Done / ❌ Delay inline buttons — one tap updates Notion in real time.

Results

  • 0 missed daily check-ins
  • Real-time Notion updates from Telegram
  • Running live 24/7 on Railway
Node.jsNotion APITelegram Bot APInode-cronRailway

These are the kinds of systems I build.
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