Arsalan Anwer enhanced production stability and deployment efficiency across google/perfetto and elastic/cloud-on-k8s. In Perfetto, he addressed a traced_probes CPU spin issue by implementing robust period validation in C++, introducing a one-hour maximum and expanding unit tests to cover edge cases. His changes improved error handling and maintained backward compatibility. For Elastic Cloud on Kubernetes, Arsalan extended Helm chart functionality using YAML, enabling operators to inject additional Kubernetes resources alongside releases, which streamlined lifecycle management. His work demonstrated depth in DevOps, system programming, and performance optimization, with careful attention to documentation, test coverage, and established project patterns.