Hello, I'm Abu Gosia.
I'm interesting in your project very well.
Please share complete requirements about Billing Application.
You need web base or desktop base application?
I'm good in Website Design, Yii2, PHP, Laravel, Codeigneter, Wordpress, Open Cart, C#, .Net, MVC, Angular.js, ASP.NET.
I m quite well experienced in these jobs.
Let's go ahead with me.
Thanks