Business voicemail automation website

I have started building a website that helps businesses contact customers via automation. I'm looking for someone to complete the build and have it ready for production. I have build about 60%. I'm using React with Redux, Node JS and MongoDB. I have also bootstrapped the build using Material UI. We need someone that specialises in voicemail and has experience with technologies such a TWILIO as we'd like the REST API used in other products. We'd also like it hosted on AWS. Eventually we'd like a mobile app version depending on the outcome of this project.