No, not the name of a children's book on RapidMiner processes featuring a protagonist named Talend, but instead a request to see if anyone has any experience to share running a Talend created ETL process via the Execute Script operator?
Is it possible, for example, to have write a Talend ETL to read from a CSV file and then run that job in RapidMiner directly?
For your purpose, the Execute Program operator may be more appropriate. This operators can run any external program via its command line. Hence, if Talend offers a command line version, you can use Execute Program to call the Talend command line version and provide with your Talend ETL script.