Mona Kjeldsrud focused on backend development in Kotlin, working on the navikt/dp-behov-journalforing repository to enhance the reliability of journalføring workflows. She addressed a recurring issue with duplicate processing by refining the skip-list logic in the JournalforingBehovLøser component, specifically adjusting a hardcoded set of behov IDs to prevent reprocessing of certain journalbehov entries. Through targeted bug fixes, Mona improved data integrity and reduced the need for manual reconciliation in the data pipeline. Her work demonstrated a methodical approach to backend reliability, emphasizing careful code changes and a deep understanding of workflow requirements within a Kotlin-based environment.