Hi, I have read your postings with great interest, because it is very proper for my skills.
I recommend Angular/Node.js Ionic Framework for your project.
For by using Angular/Node.js I can build one-to-one or group video chat and build mobile app by Ionic Framework.
I have rich experience with SPA frame(Angular, React, Vue), Laravel, MySQL, Node.js, Ionic Framework, etc...
I can make any directive, service, pipe and can manage chart, any CRUD in angular for Front-End Design.
If you prefer angular material design, that's OK..I can really satisfy you in angular.
What I want is good relationship with client and high quality, keep time promise.
Hope to discuss more via chat.
Regards
Christian