Deployed a Backend System
Used React.js
Used node.js
Used Next.js
Used SQL Server
Used Stripe
Used .NET
Here I worked with the Mancomm products, I improved their payment system by replacing SendOwl with Stripe, also created multiple REST APIs with .NET and Node.js, all of these connected to SQL Server with Sequelize ORM with a Next.js Frontend.

You can see the project here.