Worked on the aws/sagemaker-distribution repository to deliver domain-type aware credential management and optimize express-mode startup for SageMaker JupyterLab applications. Using Shell scripting and AWS CLI, implemented logic to detect Lightning domains and configure DomainExecutionRoleCreds profiles accordingly, improving reliability in credential handling. Additionally, introduced a mechanism to skip workflows container setup when operating in express mode, which reduced startup time and minimized potential error surfaces. This work enhanced the user experience for JupyterLab users by streamlining initialization and reducing the risk of credential misconfiguration, leveraging expertise in cloud computing, DevOps practices, and scripting to address specific operational challenges.