Worked on the eclipse-theia/theia repository to enhance backend resilience by addressing a critical bug in the RPC protocol. Focused on improving late-reply handling, the developer replaced fatal error throws with console warnings for non-critical late replies, such as those caused by timeouts or plugin host restarts. This approach reduced the risk of application crashes and aligned with reliability goals for distributed systems. Leveraging TypeScript and backend development expertise, the solution introduced a maintainable error-handling path that accommodates network variability. The work increased application uptime and user satisfaction by preventing unnecessary crashes, while supporting easier maintenance within the Theia codebase.