Dear,
I'm a freelancer who have a long and extensive background following:
- building website based on some technologies such as : NODEJS, MYSQL, MONGODB, REDIS, ANGULARJS, RESTUL API....
- building mobile application: android, ios.
- working on cloud services such as: AWS , Azure...
I also familiar with MQTT and experience in IOT. So, I am confident to meet your requirement.
Hope to have a chance work with you.
Thanks and Regards,