Evaldas Buinauskas developed configurable initialization warmup controls for the vespa-engine/vespa repository, enabling administrators to disable warmup queries for the SearchHandler and achieve more predictable startup performance. He implemented this feature by wiring a new configuration option through both the configuration definition and the SearchHandler constructor, using Java and XML. To support operators, Evaldas also authored clear documentation in vespa-engine/documentation, providing guidance and an XML configuration example for container tuning. His work focused on backend development, configuration management, and technical writing, delivering targeted improvements that allow production deployments to fine-tune resource usage and reduce unnecessary initialization overhead.