I have recently developed a number of apps using Dynamo DB. I have 15+ years experience of designing, developing and implementing large apps. I am aware of the design principles for both DynamoDB (No SQL way) and MySQL (SQL way). In fact, I have experience with different kind of databases. I can guide you how to design your data schema, how to choose partition keys, how to choose sort keys.
Some of our recent apps on DynamoDB where we designed schema:
1. Corporate social chats to Global relay transformation and transmission (50+ users)
2. Cattle auction app
Some of our apps on Relational DB (MySQL):
1. Crop Cutting Experiments mobile app, based on data collected from fields, sent in low signal network (3000+ users)
2. Insurance aggregator mobile app and web app (1000+ users)
3. Corporate employees insurance self management (3000+ users)
4. Social sports platform (1000+ users)
About us: We are from VisionFirst Technologies Pvt. Ltd. We are researchers and practitioners of cutting edge technology. We have designed, developed and implemented large insurance solutions (multiple mobile apps, webapps and custom softwares) with a few applications having 5000+ authenticated users. We have experience on multiple clouds such as Jelastic, AWS, Azure. Our tech stack includes Machine Learning, offline/2G tolerant mobile apps, web applications, IOT and Analytics. Our business domains include insurance (Insurtech, Fintech), education (Edutech), Sports and logistics.