A company needs to store and process image data that will be uploaded from mobile devices using a custom mobile app. Usage peaks between 8 AM and 5 PM on weekdays, with thousands of uploads per…

Directly invoking an AWS Step Functions state machine for each upload without a queue can be less efficient and potentially lead to throttling or higher costs for simple, high-volume event processing compared to SQS and Lambda.

Uploading files directly to Amazon S3 provides highly scalable and durable storage, and S3 event notifications trigger an SQS queue, which buffers messages during peak loads for asynchronous, scalable processing.

An AWS Lambda function consuming from the SQS queue provides serverless, automatically scaling compute for image processing, perfectly handling thousands of uploads per minute without server management.

S3 Batch Operations are designed for performing large-scale operations on existing S3 objects, not for real-time, event-driven processing of newly uploaded individual objects through a queue.

Amazon SNS can reliably send push notifications to mobile applications, ensuring users are informed promptly when their image processing is complete.

Amazon SES is an email service, not a service for sending push notifications directly to mobile applications; Amazon SNS is the appropriate service for mobile push notifications.