OLIX is seeking a Staff Performance Modelling Engineer to create and own analytical and simulation models that drive OTPU architecture and software evolution. This role involves building functional and high-fidelity cycle-accurate models to explore design spaces and provide insights directly influencing software, hardware, and optical roadmaps. Responsibilities include technical leadership, collaborating with engineering teams, developing tooling, and performing workload analysis. Candidates should have 7+ years of experience in performance/power modeling for hardware, strong C++/Python skills, and a solid grasp of computer architecture fundamentals.