Hi, My name is Hasnain. I've read and understood the project specifications, As you've mentioned that system is under development and you just need a new recording voice feature. I'm available to work on this project for you. I can do the necesarry code to make the mic working and saving the voices on your server.
As for my technical background, I've over 3 years of web development experience. I'm currently working as a software engineer in a Swedish company here in Pakistan. I mostly use Python and PHP for my web development projects. I've developed several business/portfolio websites powered by Wordpress. I've experience in frontend development stacks including Angular, React & jQuery as well. I'd love to get more details from you about the project, send me a message.