APIs to create Job ID and download translated file

Hi,
I am Sri harsha. For our translation service project, we are researching about TMS APIs and we have few questions related to APIs. Currently, we have TMS user interface to do the following, but we are in need of APIs instead of doing them in UI manually.
1. Is there any API to create a Job ID and submit a document (XML) in that Job ID?
2. Is there any API to download the translated document after all the workflow steps are completed?

Please provide the documentation for the above APIs, if you have any.
We have API documentation  but we did not find that helps us.

Thank you, I appreciate for your help.