During April 2025, Matt refactored the Load Balancer gRPC handler in the vdaas/vald repository to improve maintainability and extensibility. He modularized the Go codebase by dividing the handler into dedicated files for flush, insert, search, update, upsert, and remove operations, aligning with existing gRPC endpoints. This backend development effort reduced cross-file dependencies and clarified subsystem ownership, enabling safer testing and faster future feature delivery. By applying code refactoring and modular design principles, Matt laid the groundwork for more reliable production deployments and streamlined development workflows, demonstrating depth in Go, gRPC, and load balancing within a complex distributed system.