Username of user who executed Glue job

Hi You should be able to capture this information in CLoudTrail. See

AWS Glue is integrated with AWS CloudTrail, a service that provides a record of actions taken by a user, role, or an AWS service in AWS Glue. CloudTrail captures all API calls for AWS Glue as events. The calls captured include calls from the AWS Glue console and code calls to the AWS Glue API operations.

https://docs.aws.amazon.com/glue/latest/dg/monitor-cloudtrail.html