Developed and delivered a new AWS Elastic Fabric Adapter (EFA) Metrics Receiver for the amazon-contributing/opentelemetry-collector-contrib repository, expanding observability for high-performance computing workloads on AWS. This feature, implemented in Go, introduced 22 hardware counters to provide granular performance metrics and deeper insight into network operations. The work included comprehensive configuration options and detailed documentation, streamlining integration with existing monitoring pipelines. By focusing on backend development and cloud computing best practices, the contribution enhanced monitoring capabilities, enabled proactive optimization, and reduced mean time to diagnose issues in HPC environments. Code quality was maintained through clear guidelines and collaborative cross-team efforts.