Help to finish a web-based chat application project

We have an existing web-based chat application that has been in development and is ready for a developer to take over for final completion. I would estimate the project to be about 80% done. However, the chat application does have some existing bugs and unfinished work that needs to be cleaned up and some additional features added as well. We have listed all the tasks that need to be done on Trello and will go through them in chat as well. This will be an ongoing project with new task requests made in the future so we will need "lifetime" continual support. The technology involves: Vue.js, [login to view URL], Postgresql, Redis, Node.js, [login to view URL], Nginx and WebRTC as the main core technology. So, you must know all of the above and also server side skills to install and run the web based application from a domain and server and set it up on Amazon AWS cloud server for load balancing eventually. The purpose of the application is to allow random users to chat with each other in a public setting. They can also webcam eachother in a public session (streaming to everybody in the chat room) or in a private session. The text chatting can be done in private or public. There are many functions already built into the chat application such as a full admin panel, ability to kick, mute or ban by higher roles, register accounts, use smileys, change colors and text format, set profile pictures, friends list, block annoying users, word filter, file uploading, and much more. We will send a web based demo for you to test the existing application and familiarize yourself with it and outline the missing features via Chat and Trello. Whoever applies must have extensive knowledge of the above technology (or use alternative technology that would be beneficial and be able to read other developers codes and grasp the project rather quickly to continue where the old developer has left off) The code is very clean and organized. Anybody who works on this project will need to sign a personal NDA and provide ID card. This is to protect the source code, both current code and future code you provide for us. Please do not apply if you have communication problems. Only highly motivated and serious developers need apply. Project will only be paid when completed. ****[Milestones can be created but not released until FULL completion (not including any future tasks we ask, of course)]***** Please do not apply if you are not highly motivated or taking on too many tasks at one time. I have worked with such developers in the past and it is always a pain to find this type. I am hoping to find a great developer who is looking for both short term and long term work. After this project is complete we would still like to work together long term for support on adding additional features and improve the app overall. Also, in the future, we want to create an Android and iOS version of this application. But let us first complete this task. We only pay by fixed flat fee for completion. We do not pay hourly, so please do not ask. Hourly should only be paid for smaller tasks. The speed at which a freelancer works can vary, so hourly is not feasible for us. No time wasters or fake profile applicants, please. Honesty and a trustful relationship between both of us is what I am looking for. Again, we are looking for someone who can see the project to the end, not someone who will only work partially or preoccupied with other jobs. Thanks for looking and I hope we can work together soon. Please provide examples of past experience working with these technologies.