I don't know if this will penetrate upward to the CTO level, but 'rclone'[1] is an open source, standards based solution to cloud-to-cloud migration.
You can use rclone - and all its powers - without installing or running it locally:
ssh user@rsync.net rclone s3:/some/bucket gdrive:/blah
... as there is a cloud storage provider with rclone built into the platform.[2]