During January 2025, Lee contributed to the dagster-io/dagster repository by addressing networking flexibility in the ECS Run Launcher. Lee focused on backend development and AWS integration, specifically refining how the Run Task API handles network configuration parameters. By ensuring the networkConfiguration parameter is omitted when set to None, Lee enabled support for non-awsvpc network modes such as bridge, resolving ParamValidationError issues and improving automation reliability. This Python-based solution enhanced deployment flexibility for ECS-based runs, aligning with broader DevOps goals to reduce manual workarounds. The work demonstrated a targeted, in-depth approach to infrastructure reliability within a cloud-native environment.