Worked on the google/perfetto repository to streamline the CPU profiling export process by consolidating profiler events in the JSON export pipeline. The approach involved removing legacy stackCpuSampling events and designating V8-based CPU profiler events as the authoritative source for sample data. This refactor, implemented in C++, focused on improving data consistency and reliability across trace processing workflows. By simplifying the export logic and eliminating related unit tests, the changes reduced ongoing maintenance requirements and enabled more efficient downstream analysis. The work leveraged expertise in CPU profiling, JSON export, and trace processing to deliver a more robust and maintainable export system.