ReactNative module development

The development stack to use would be React Native, NodeJS and Mongo DB. It is necessary that the source code be delivered with high quality standards, it is recommended to use a linter to be able to deliver it since the idea is to be able to start a subsequent collaborative work, so the code must be readable for a whole group of developers.

I have an application that has already started with a development, but the truth has many things to improve. The developer who made it did not do a good job

But I would not want to lose that work done.