projects | Tim (Tien) Bui

dev

WikiCharacterBot

Intelligent Wikipedia-Powered RAG Chatbot
Jan 2026
An intelligent chatbot that fetches Wikipedia content and uses RAG (Retrieval-Augmented Generation) to answer questions about people, characters, and topics. Built with OpenAI's function calling, ChromaDB vector database, and Gradio web interface.

StockPriceBot

Real-time Stock Price AI Chatbot
Oct 2025
AI powered chatbot that answers natural language questions about live stock prices. Built in Python using yfinance for market data and OpenAI function calling for intent handling. Includes a Gradio chat interface and is deployed on Hugging Face Spaces.

Jacqaranda Books & Vintage

Wix website & IT support
Jul 2025
Responsive Wix site for a local bookstore and vintage goods store at 53 Goodwood Street—complete with SEO optimisation, custom templates and owner training materials.

ArtStore

E-commerce App with .NET Core and Angular
Sep 2024
Full-stack e-commerce app built with .NET Core 8 and Angular 18 using a multi-project architecture. It features secure ASP.NET Identity authentication, a multi-step checkout form with basket-to-order flow, Stripe payment integration, and follows Repository & Unit of Work patterns. Deployed to Azure for scalable hosting.

454 Illustrator

E-commerce website
May 2024
Illustrations storefront built with ASP.NET Core MVC & Razor, featuring SQL Server CRUD operations, Identity Framework authentication and Stripe payments. Uses custom tag helpers and scalable project architecture, all deployed to Azure.

Resell Track

iOS app
Sep 2023
Cross-platform SwiftUI app for iPhone, iPad and Mac that lets you organise purchases, monitor item values over time and log sales in a clean, intuitive interface.

dev_uni

Online Voting System

DevOps Project
Oct 2022
Created a secure online voting platform and implemented DevOps practices - automated CI/CD pipelines, containerised services, infrastructure-as-code, and monitoring to streamline development and deployment.

Scuba Diving Calculation Assistant

Application Development Project
May 2022
Java Swing desktop tool (built in NetBeans) that automates both basic and advanced dive-industry calculations, with JUnit tests ensuring accuracy and reliability.

Kitchenware Content Management System

No Framework Web Development Project
Oct 2021
Built a PHP/MySQL e-commerce CMS on XAMPP—no external frameworks. Features a custom admin interface for adding, editing and removing products and content.

Inventory Management System

Cloud Computing Project
Oct 2022
Built a cloud-hosted inventory app using Node-RED on NeCTAR/IBM Cloud. Designed data flows for real-time stock tracking, automated low-inventory alerts, and integrated with cloud databases for seamless management.

data

Dashboards for Call Center Manager

PWC Power BI virtual case experience Part 1
Dec 2023
Utilised Power Query, DAX, and visualisation tools within Power BI to create dashboards for the Call Center Manager to understand todays trends, reflect customer demographics and insights regarding customer retention.

Dashboards for HR Manager

PWC Power BI virtual case experience Part 2
Dec 2023
Utilised Power Query, DAX, and visualisation tools within Power BI to create visualizations to represent HR data, particularly focusing on gender-related KPIs.

Customer targeting visualisations

KPMG Data Analytics Consulting virtual internship
Nov 2023
Utilised Power Query, DAX, and visualisation tools within Power BI to create a dashboard for the client that specifies who they should be targeting in their customer list as well as the broader market segment.

Customer churn analysis

Data Analysis Project
Oct 2023
Utilised Power Query, DAX, and visualisation tools within Power BI to analyse a fictional telecom company's dataset, examining customer churn patterns and facilitating data-driven insights for retention strategies.

Twitter data collection and analysis

Data Engineering Project
May 2022
Use the power of Twitter API to collect, analyse and visualise one week of data related to Elon Musk to gain insights into the social media behavior of Twitter users.

Database system for a Car Rental Firm

Data Modelling Project
Oct 2021
Create a database for a "real-life" case-study - a car rental company. Includes written conceptual model, written and code for logical and physical models.