Worked on performance optimization for the getsentry/opentelemetry-js-contrib repository, focusing on the MySQL2 instrumentation plugin. Refactored the getSpanName function to use substring operations instead of string splitting, enabling more efficient extraction of SQL verbs during database tracing. This change reduced per-call overhead in high-traffic scenarios, improving throughput without altering external behavior. Updated and expanded the related test suite to ensure functional parity and maintain reliability. The work was implemented using TypeScript and leveraged skills in Node.js and database instrumentation, demonstrating a targeted approach to enhancing OpenTelemetry’s performance for MySQL2 workloads in production environments. No bugs were reported or fixed.