Ash Bhandare developed GPU metrics instrumentation for the NVIDIA/NeMo-Run repository, focusing on enhancing observability and performance analysis for distributed GPU workloads. He implemented a feature that collects GPU device metrics using Nsys on rank 0 during Slurm-enabled runs, integrating this logic with the SlurmExecutor to conditionally enable metrics collection. The solution involved constructing the Nsys entrypoint to include metrics when appropriate and writing unit tests to verify correct behavior. Leveraging Python, shell scripting, and system administration skills, Ash delivered a targeted, well-tested improvement that enables more effective resource optimization and monitoring in complex distributed systems environments.