Worked on the ROCm/FBGEMM repository to enhance the reliability and portability of segment operations across CPU and GPU architectures. Focused on improving numerical safety and correctness, the work addressed overflow risks in the segment_sum_csr function by implementing robust type dispatching for int32_t and int64_t offsets. This approach unified behavior across architectures and ensured accurate computations for large 31-bit offsets. Leveraging C++, CUDA, and template metaprogramming, the developer introduced nested dispatching to support arbitrary offset input types, preventing negative values and incorrect results. These changes laid the groundwork for consistent, production-ready segment operations in heterogeneous computing environments.