Hello,
We are group of IT professionals and we can help you to build messaging application as per your requirement.
We posses all the skills which you are looking for. We have hands on experience in React-native and ReactJS, NodeJS, AWS, Fire-base, GIT, Redux, Socket, MySQL and MongoDB database, PHP, HTML,CSS,
If you want to built similar like LinkedIn that is really impossible to do in your budget.
Kindly share more details so i can get idea what exactly you are looking to build.
Let's discuss more in message.
Thank you,
Jui
Note: I can change the price once i got all of your requirement.