IoT Architecture recommendation - switch from Azure to AWS

Hi guys,

I rode a lot of articles and watch some videos about IoT Architect solutions, I did some proofs of concept too.
Now i want to start building the real system but i'm not quite sure about the architecture.

Hopefully the community can give me some tips and architecture advises

Devices number : 1000-2000 devices split between different customers
Some devices are sending small messages with telemetry data like temperature,pressures,... (every hour)
Some devices are sending big binary files with raw data (50mb) (every 6hours)
this big files are formated like that:

device_id,published_at,[value,value,value,value,value,value,value,value,value,value,value,value,value,value,...]
device_id,published_at,[value,value,value,value,value,value,value,value,value,value,value,value,value,value,...]
device_id,published_at,[value,value,value,value,value,value,value,value,value,value,value,value,value,value,...]
device_id,published_at,[value,value,value,value,value,value,value,value,value,value,value,value,value,value,...]
device_id,published_at,[value,value,value,value,value,value,value,value,value,value,value,value,value,value,...]
.....

I was previously working with Azure and i had this architecture that was working fine :
-IoT Device Provisioning Service
-IoT Hub for the small telemetry messages
-Azure SQL DB to store my small telemetry messages
-Stream Analytic Service to get the message from the IoT Hub and store in the SQL DB
-Blob storage to store my big binary files with the right naming policy DeviceName/Date/Filename
-Stream Analytic Service to read my newly uploaded blob and give an input to other jobs

But for some reasons we have to switch to AWS and since it's a different approach im asking for your knowledge.
Here is what i have so far:
-IoT Device Management (to manage my devices and groups)
-S3 to store my binary files
-DynamoDB
-AWS Lambda

The flow :
1 - IoT devices get registered through IoT Device Mangement
2 - Devices send telemetry data every hour Telemetry data are stored in DynamoDB through Lambda
3 - Devices send Big binary files every 6hours through MQTT protocol on S3
4 - When a big binary file upload is finish, Lambda gets triggerred and parse this file to store the data on DynamoDB (then delete the binary file?)
5 - Then when i have all the data in DynamoDB i can trigger whatever cloud function...

I do think that i am not getting it properly. If someone can give me some advice on how to do what i was doing on Azure on AWS?

Any recommendation is really appreciated !
Thank you

Edited by: Doombqr on Jan 24, 2019 7:45 AM