Worked on startup performance optimization in the open-telemetry/opentelemetry-java repository, focusing on backend development using Java. Developed a feature that streamlined the initialization of a boolean array responsible for valid hexadecimal character lookup, limiting the initialization range to only necessary values. This targeted approach reduced startup overhead, particularly benefiting agent startup on resource-constrained mobile devices. The work emphasized code clarity and maintainability by narrowing the scope of changes, making future optimizations and code reviews more straightforward. No bugs were fixed during this period, and the contribution centered on enhancing efficiency and maintainability within the Java backend codebase for OpenTelemetry.