Worked on maintaining the reliability of Renault integration within the evcc-io/evcc repository by updating Renault API keys to ensure uninterrupted service. Addressed a critical backend issue by implementing secure credential rotation through a targeted code change, which was delivered as a single, auditable commit to enhance release traceability. Focused on backend development and API integration using Go, the update preserved user workflows and automation by preventing potential outages. Demonstrated skills in secure key management, external API integration, and version control practices, contributing to reduced incident risk and improved operational continuity for Renault-related features without introducing new features during the period.