A cross-platform online learning and teaching platform akin to Udemy or Coursera, integrating both student and instructor functionalities on mobile.• Frontend : ReactJS (Web client) + TailwindCSS + Material UI, Flutter (Mobile client)• Backend : NodeJS, ExpressJS, Firebase Firestore• Key Features:• Provide courses management system for instructors including creating, updating, and organizing multimedia courses (content, videos, quizzes,...)• Cross-platform mobile app for student to access course content, viewing video lessons, tracking progress, participating in discussions and so on.• Implemented system architectures for the application, overseeing project planning, execution.• Create user interface for both mobile and web client using Flutter and ReactJS, handle API requests using Axios, Dio, utilized state management solutions like Provider. Built RESTful APIs using ExpressJS, applying middleware for authentication, request validation, and error handling.

An English learning app which provide vocabulary and topic management, similar to the Quizlet app.• Technology: Flutter + Firebase Firestore (BaaS)• Key Features:• Vocabulary, topic and folder management• Practicing each topics using flashcard, quizzes or typing word. Sharings topic with other users and competing with each other.• Responsibility:• Worked as a full stack mobile developer. Defined and implemented app architectures and complex user interfaces.• Developed key features of the application including creating and managing vocabulary topics, learning vocabulary by flashcards, quizzes and account-related features.

A point-of-sale (POS) web application created in order to manage inventory of phones, employees, invoice generation and payment processing for phone stores• Technology:• Frontend: HTML, CSS, Bootstrap 5, Ajax• Backend: NodeJS, ExpressJS, MongoDB• Key Features:• Provided management system for phone inventory, clients and invoices along with payment processes.• Admin dashboard and chart visualization for reporting store revenues, administer employees as well as inventory products.• Led the team as a full stack developer, evaluating front-end technologies, making design decisions, set up and manage database, reviewing code.• Implemented functionalities such as employees management, products management, transactions processing and chart visualization, facilitating communication between front-end and back-end.

• Explore the available fashion products by category, brand, or using a search feature, add products to their cart, adjust quantities, and view their cart contents before checkout.• Administrators can add new products, edit existing ones, manage product categories.• Responsibility:• I was responsible for designing and implementing data models representing products, categories, users, orders, and other entities. Defined relationships between entities and enforced data integrity constraints.• Leveraging Entity Framework Core to retrieve and persist data like product catalog, user authentication and authorization, shopping cart, checkout, admin dashboard.