In September 2025, Søren Rostrup focused on improving autotuning stability within the pytorch/pytorch repository, specifically targeting Triton-enabled environments. He addressed sporadic crashes during model tuning by introducing an environment variable that disables Triton device detection, thereby preventing unintended device initialization. Using Python and leveraging backend development and configuration management skills, Søren also implemented a workaround for a double initialization issue in the has_triton function. This targeted fix reduced failure rates in continuous integration and user workloads, resulting in more reliable performance optimizations across diverse GPU configurations. His work demonstrated depth in diagnosing and resolving complex backend stability issues.