During their work on the grafana/grafana-opentelemetry-java repository, Veklov focused on backend development and metrics instrumentation using Java. They addressed a bug affecting HTTP server request duration metrics by updating the ServerAddressConfig to ensure the View is registered only when server address opt-in is enabled. This change prevented shadowing of the DefaultAggregationSelector and enabled correct histogram aggregation. Veklov added comprehensive unit tests to validate default and opt-in configurations, verifying compatibility with exponential readers and documenting shadowing behavior. Local end-to-end validation confirmed that the patched agent produced accurate native histograms, improving metric accuracy and stability for environment-controlled aggregations.