Developed a Deno Runtime Symlink Management Utility for the Rocket.Chat repository, addressing persistent 'Module not found' errors following Deno runtime upgrades. The solution replaced fragile symlink creation logic with a robust utility that manages existing files and mitigates race conditions, ensuring reliable configuration file resolution after upgrades. This work streamlined the upgrade process and reduced downtime by stabilizing module resolution in critical deployment paths. Leveraging backend development expertise with Deno, Node.js, and TypeScript, the developer focused on filesystem operations and concurrency control to deliver a targeted fix that improved the reliability and maintainability of Rocket.Chat’s Deno runtime environment.