Worked on the NVIDIA/NVFlare repository to address TLS corruption issues in the Job Launcher, focusing on improving the reliability of distributed job execution. The solution involved replacing the traditional fork-based process creation with posix_spawn to prevent gRPC state inheritance, which previously led to instability. A custom ProcessAdapter was introduced to manage child processes using either posix_spawn or subprocess.Popen, enhancing process lifecycle management and traceability. This work required deep understanding of Python development, Linux process management, and TLS/gRPC internals. The changes reduced flaky runs and TLS-related failures in production, contributing to more robust and maintainable job-launch workflows within the system.