I am a front-end and back-end web developer. I am providing a service of web app development using express.js and node.js for backend development and Mongo dB as database management system.

This service will contain HTML5(or pug or some familiar frameworks such as Bootstrap4, Tailwind CSS) as a templating language ,CSS3 for designing and ES6(Modern JavaScript) as an front-end JavaScript and Node.js as backend and Mongo dB as a database management system and some pretty familiar stuffs such as Express.js.

If you want an authentication system in your app then I have a decent knowledge of Passport.js(local strategy) which a web app authentication library.

• I am using express.js as a backend because using express is a scalable way of making the apps and in future there won't be any difficulty in scaling the app.
• I am using node.js as a backend because node.js uses JavaScript as a backend hence It will be easier to handle front-end and back-end as both will be written in the same language.
• I am using Mongo dB because it is a nonrelational database management system which is easier to manage as compared to MySQL, Oracle Database , etc. which are relational database management systems.
• I am using Passport.js as an authentication system because it's a pretty good JavaScript library to handle authentication process.(optional)