Vitaliy Drogan developed Backrun Bundles Support for the flashbots/op-rbuilder repository, focusing on enabling backrun bundle submission and execution within the platform. He implemented a new eth_sendBackrunBundle RPC method, designed a global pool for managing backrun bundles, and integrated these features with the block builder to improve transaction ordering and MEV opportunities. Using Rust and leveraging his expertise in API and back-end development, Vitaliy also delivered comprehensive documentation and metrics for monitoring backrun activity. His work provided a scalable, observable solution for backrun management, enhancing reliability and onboarding for developers while demonstrating depth in blockchain infrastructure engineering.