FLAGSHIP SYSTEMS

Three systems that show how I engineer AI

Each case exposes the problem, architecture decision, my role, and a measurable result.

Weighted accuracy 98.0% | Average latency reduced to 2.6s

Agentic RAG System

Problem
Mixed enterprise documents and unstable user phrasing made conventional RAG miss or mis-rank critical instructions.
System
Built a controlled LangGraph workflow with rule-first routing, hybrid retrieval, context validation, and retries.
My role
System architecture, retrieval and evaluation workflow, API, and deployment design.
Evidence
98.0% weighted accuracy with 2.6-second average latency.

Multi-hospital receipt formats → unified JSON output with end-to-end parsing

Receipt OCR API

Problem
Hospital receipts vary by layout, tables, and scan quality, making manual entry slow and downstream integration brittle.
System
Combined image correction, YOLO region detection, PaddleOCR, and hospital-specific field normalization.
My role
End-to-end OCR pipeline, field normalization, and API output design.
Evidence
Normalized formats from 5+ hospitals into API-ready JSON.

1 main flow routes intelligently to 19 subflows (RAG, fact-checking, images, news, and more)

LINE Chatbot · n8n Workflow Platform

Problem
One LINE entry point had to handle RAG, fact-checking, news, images, and web tasks without becoming one fragile flow.
System
Used Gemini intent routing and n8n to dispatch requests to modular subflows with consistent response formatting.
My role
Workflow architecture, intent routing, module integration, and LINE delivery.
Evidence
1 main workflow routes reliably across 19 independently maintainable subflows.

RESEARCH PROTOTYPES

Ideas tested as working systems

Focused builds used to test emerging interfaces, workflows, and product directions.

Prototype

TrendScope Conference Trend Platform

Manual meeting notes → one-click structured reports

A conference content processing and report generation platform built with Gemini, BigQuery, and FastAPI, automatically organizing structured trend reports from transcripts, presentations, and scraped web data.

Prototype

Portfolio Opening Bell Agent

Combine real holdings, realtime quotes, and news context into a structured opening report and decision dashboard so investors can gauge risk and opportunity before the open.

A position-aware AI portfolio assistant: combines holdings, real-time market data, and news to generate opening bell guides and decision dashboards, supporting trend trading and risk assessment.

Prototype

Realtime Voice AI

Realtime voice dialogue · optional Realtime API / Gemini Live

OpenAI Realtime API + Gemini Live + MCP: ChatGPT-like voice assistant with selectable models, supporting real-time voice, streaming responses, dark/light mode, and tool-augmented conversations.

Prototype

BloomRender

One-stop AI retouching across ID, portrait, travel, and virtual try-on scenes

BloomRender — Let your ideas bloom. An AI-driven professional photo editing and generation studio, powered by Google Gemini API, offering retouching, filters, ID photos, professional portraits, travel photos, thematic photoshoots, duo/group photos, and AI virtual try-on.

Prototype

PPT2Preview

Slides + outline → professional video with AI voiceover

Automatically convert slides and Markdown outlines into professional videos with AI voiceovers. Supports PDF/PPTX upload, Gemini script generation, multi-voice TTS, and one-click synthesis and download.

ENGINEERING TOOLS

Reusable utilities and production helpers

Smaller tools that turn document, media, and knowledge workflows into repeatable pipelines.

Tool

Text2Podcast

Text → dual-speaker podcast audio in one click

Automatically generate professional podcast audio from text content. Uses AI to convert text into a two-speaker dialogue script, combined with Google Cloud TTS for natural voice synthesis. Supports multiple length modes and real-time progress tracking.

Tool

PDF to Markdown Converter

PDF → structured Markdown for RAG and AI preprocessing

Converts PDF into structured Markdown. Features a frontend interface and a FastAPI backend. Employs a hybrid parsing strategy (PyMuPDF + Gemini Vision) and supports RAG and AI parsing preprocessing.

SPEAKING · TECHNICAL EXCHANGE

Discuss the architecture behind these systems

Speaking & contact