During a two-month period, Dielhen worked on foundational improvements to compaction configuration in the slatedb/slatedb repository, introducing CompactorConfig and CompactorBuilder to centralize and validate settings, which reduced misconfiguration risk and improved long-term database build reliability. Using Rust and leveraging asynchronous programming and system architecture skills, Dielhen enforced mutual exclusivity between new and legacy configuration methods. In apache/kafka, Dielhen focused on test infrastructure, implementing robust cleanup of temporary directories in RaftManagerTest using Scala and test automation techniques. This change improved CI stability and reduced flaky tests by ensuring proper resource cleanup, demonstrating careful attention to maintainability and reliability.