4DS inventory management websites

Inventory4D is an internal inventory and order management system developed for 4DS Corp. It streamlines the tracking of goods throughout the entire lifecycle, from purchasing to final sales. The system includes comprehensive features such as:
- Purchases: Vendor management, purchase orders, and payment monitoring.
- Stock Management: Functions for stock-in, stock-out, and stock transfers.
- Inventories: tables and graphs for monitoring quantities and average costs.
- Picking: Summaries for picking tasks and route optimization advice.
- Orders : Order prioritization, packaging guidance, tracking labels purchasing, and synchronization with selling platforms.
This system is built using the MEAN stack (MongoDB, Express.js, AngularJS, Node.js). I am responsible for the design, as well as both front-end and back-end development. Additionally, I utilize Google Drive and Google Sheets to record data, which serves as the database for Power BI and App Script integrations.
I am also responsible for developing another system using the MERN stack (MongoDB, Express.js, React, Node.js). This system incorporates features migrated from Inventory4D (our MEAN stack system) and enhances functionality by automatically syncing, monitoring, and visualizing data from platforms such as Amazon, Walmart, and Shopify.