Konstantinos Parasyris is a Computer Scientist at Lawrence Livermore National Laboratory (CASC). His work focuses on compilers and runtime systems at the intersection of LLVM/Clang/MLIR, GPU programming models (OpenMP, CUDA, HIP), and data-driven performance engineering for HPC. He works on record–replay, JIT specialization, and ML-assisted optimization frameworks, including Mneme and Proteus, with an emphasis on understanding and improving system behavior across compile time and runtime.