Hi, how are you? I made a similar application recently ... bulk send through WhatsApp. I can do this. I await your contact.
Quick info about me: I have 7 years of experience in development, 3 of them in research. I am a Data Science expert (MSc), and I work with machine learning and deep learning in the last years. I have already worked with several frameworks, such as Scikit-learn, tensorflow, Keras, PyTorch, Numpy, Panda, Matplotlib, and other used libraries for this purpose
In my career, I have built several applications of Machine Learning and Deep Learning, going through the steps of data collection, processing and model/network training. For some examples visit my Github. To know more about me, visit my profile and portfolio and if you have any questions, let me know.
I also love to learn, and this is my main quality. Because of this, if the project requires me to learn any framework, library, tool, or any other thing that I do not know yet, you can be most assured I will.
Thank you very much.