Dear client! how are you?
I have read your description carefully
I would like to help you, so i write my bid and send my career.
I am a senior mobile developer worked in this field for 3+ years.
I am a professional native android & ios developer working with java, swift 4, Object C.
And i am a hybrid app expert using with React native, ionic, phonegap...
In correspond to these skills, I can make flexible backend.
My backend skills are php & sql, node.js, django & flask, laravel...
Also I use AWS, Google Cloud, Firebase, Cpanel, Digital Ocean, sqlite...
If you want to check this and know me more, please check my profile and portfolio.
As you can see, i am a capable freelancer, I am very honest and diligent to client and I value credit.
In particular, I place my highest priority on quality for your good business.
If you agree with my proposal, please feel free to contact me at any time.
I am always ready to help you. Hope you the best luck in everything you do.
See you soon, kindly regards...