IGOGO
A platform that connects travelers with homestay hosts across Vietnam, with mobile and web apps and an AI assistant for planning itineraries.
Next.js · TypeScript · React Native · Expo · NestJS
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An AI assistant that answers investor questions about projects, policies, and procedures for a city-level investment promotion agency.
As agreed with the client, the name and pictures of this project stay private.
The client is a city-level investment promotion agency. It receives many questions from investors about projects, investment incentives, procedures, and zoning plans.
The data lives in many places: a project database, handbooks, legal documents, and news. The agency needed an assistant that answers in Vietnamese and English and never fabricates information.
We built the backend and AI. The client's technical team built the chat interface on top of our API.
The AI picks the right lookup tool for each question.
Hybrid search: combines semantic and keyword search.
Safeguards against fabricated figures: answers only from real data and says clearly when information is not yet available.
Multi-turn conversation in Vietnamese and English.
Scheduled data sync with no service interruption.
Reads scanned documents.
Administration: upload documents, edit responses, block content, and review history and statistics.
Automatic switch to a fallback model when the primary model fails.
Automated quality evaluation suite that runs after every change.
The assistant runs on the official website and answers investor questions every day.
Investors have used the assistant regularly since its first months of operation.
The internal test suite passes all scenarios.
Response times are short, so users do not have to wait long.
A platform that connects travelers with homestay hosts across Vietnam, with mobile and web apps and an AI assistant for planning itineraries.
Next.js · TypeScript · React Native · Expo · NestJS
A system that reads and cross-checks import and export documents with OCR and AI, automated from document upload to customs declaration filing.
Next.js · Python · FastAPI · PostgreSQL · Claude
An AI-assisted to-do list app that adapts to the way you work and lets you switch productivity methods with a single click.
React · TypeScript · NestJS · PostgreSQL · Redis
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