Alexey Ryabov enhanced backend observability and localization in the sklintyg/webcert and sklintyg/core repositories over a two-month period. He improved integration traceability by enabling tracing and enhanced logging in Java, adding support for TRACE_ID_KEY and SESSION_ID_KEY within the CSIntegrationService to facilitate faster incident response and root-cause analysis. In sklintyg/core, Alexey addressed a localization issue by correcting the Swedish grammar in the FK7426 certificate model name, ensuring user-facing clarity without altering the schema. His work demonstrated a focus on backend development and logging, delivering targeted, auditable changes that improved both system diagnosability and user experience for Swedish-language users.