i need node js developer with socket.io knowledge

We have a chatting app and we are done with all the things but we are facing some issue on the server . So we required a person who is good experience in nodejs and know how to work on socket.io. Its a small task and we need to fix it urgently. The list of points are :- [login to view URL] and contact list are not refreshing properly. [login to view URL] issue. [login to view URL] picture is not showing. Do not bid before reading the post and mention the experience of node js in your proposal