Looking for a senior Add-on/Javascript Developer

THIS IS A PROJECT FOR HIGHLY EXPERIENCED AND PROFESSIONAL JAVASCRIPT DEVELOPERS (with high experience in the development of Addons for Chrome/Firefox)! We develop innovative software solutions for various areas. We have developed a Password Manager (for Windows, iOS, Mac OS and Android). The application uses a browser add-on which inserts data from our application into the browser. This happens when a login to a website is required (usually user name and password are inserted). The existing add-on is written in Javascript and uses Native Messaging host AND Websockets to communicate with the main application We are currently looking for a Javascript Senior Developer to improve, extend and optimize our existing Addon (Firefox/Chrome). If you are interested and/or have any questions, please contact me. I look forward to your offer!