Hello,
I have checked your job post and found that you are looking Mobile app developer and I will desgin and develop a mobile app as per your need "IM Messenger who have function Chat , voice Call , Video Call"
I have earned 6+ years of experienced in programming apps in and always love to adopt my self in learning and implementing in emerging technologies Node.js, Angular.js, Mongo db, React.js, IONIC framework, Android Studio programming, Xcode programming, Codeigniter framework mysql.
Please have a look my work portfolio:- https://www.freelancer.com/u/pinfytech
Checking my feedback would give you invaluable insight into the testimonials of my previous
employers who were more than happy with my services.
Let me know your free time for further discussion, Looking forward to you.