Worked on the nginx/agent repository to deliver a robust upgrade migration for the NGINX Agent, focusing on enhancing reliability and user experience during the v2 to v3 upgrade process. Refactored the preinstall shell script to safely migrate configurations, implementing automated backups and extraction of critical details such as host, token, and configuration directories. Improved system administration workflows by adding checks for existing installations and providing clearer, more actionable output messages to guide users through the migration. Leveraged skills in configuration management, scripting, and system administration to reduce downtime and support needs, ensuring a seamless and safer upgrade path for users.