Worked on the bugsnag/bugsnag-js-performance and bugsnag/bugsnag-js repositories to deliver foundational improvements in performance monitoring and test stability. Introduced OpenTelemetry instrumentation to the Bugsnag JavaScript SDK, enabling end-to-end tracing and enhanced observability using TypeScript and JavaScript. Refactored the ResourceLoadPlugin to improve data accuracy by refining response body size handling, reducing unnecessary checks. Addressed security compliance by updating the Vite dependency for compatibility with the latest features. Upgraded the bugsnag-maze-runner Ruby gem across multiple test environments, ensuring access to recent fixes and improved integration stability. Focused on continuous integration, dependency management, and robust testing frameworks throughout the development process.