Multiphysics Simulation Scientist, Semiconductors

ABOUT PERIODIC LABS Periodic Labs is an AI and physical sciences company building state-of-the-art models to accelerate breakthroughs across materials, energy, semiconductors, and beyond. Backed by world-class investors and growing rapidly, we operate at the pace the frontier requires. Our team brings deep expertise, genuine ownership, and an insatiable drive to push the boundaries of what’s scientifically possible. ABOUT THE ROLE Periodic Labs is developing AI systems that can simulate physical science, verify predictions, and train on the full scientific method. A core part of that mission is building high-fidelity computational models of the processes happening inside our experimental and customer-facing systems, then making those models fast enough to support AI planning, autonomous lab operation, and engineering decision-making. We are looking for a Multiphysics Simulation Scientist to develop, validate, accelerate, and integrate models of semiconductor-relevant physical processes. This role is designed for someone with deep experience in multiphysics simulation, especially in domains such as advanced packaging, wafer mechanics, thin-film deposition, plasma processing, thermal transport, stress and warpage, capillary flow, electromagnetics, or related manufacturing processes. You will work across computational science, AI, automation, process engineering, and customer-facing teams. Your models will help us understand experimental systems, generate training data, guide process decisions, and deliver high-value engineering insights to semiconductor customers. WHAT YOU’LL DO - Build and apply multiphysics models for semiconductor-relevant systems, including thermal, mechanical, fluid, electromagnetic, plasma, chemical reaction, and materials processes, often in coupled settings. - Model priority problems such as flip-chip underfill capillary flow and void formation, thermo-mechanical wafer stress and warpage, thin-film deposition, plasma chamber behavior, thermal budgets, process-induced deformation, magnetic or superconducting materials behavior, and other customer-driven physical systems. - Use high-fidelity simulation tools such as COMSOL, ANSYS, Abaqus, Fluent, Lumerical, Sentaurus, OpenFOAM, MOOSE, or comparable platforms where appropriate, while also helping decide when custom solvers, reduced-order models, or surrogate models are needed. - Validate models against experimental and process data. You will work with experimentalists and engineers to compare simulations against measurements, estimate uncertain parameters, understand failure modes, and decide when a model is ready to guide real decisions. - Generate physically meaningful simulated datasets for ML training. Your simulations will help train AI systems in regimes where experiments are expensive, slow, or difficult to run. - Integrate simulation workflows with Periodic Labs’ AI, data, and orchestration infrastructure. Your models should become callable tools for AI planning and experiment interpretation, not standalone reports. - Collaborate with process, automation, AI, facilities, and customer-facing teams to optimize R&D workflows and solve practical engineering problems. - Help define the long-term multiphysics modeling roadmap for Periodic Labs’ semiconductor and materials programs. YOU WILL THRIVE IN THIS ROLE IF YOU HAVE - A PhD, MS, or equivalent experience in mechanical engineering, chemical engineering, materials science, electrical engineering, applied physics, aerospace engineering, or a closely related discipline. - Significant hands-on experience with multiphysics modeling tools such as COMSOL, ANSYS, Abaqus, Fluent, OpenFOAM, Sentaurus, Lumerical, MOOSE, or other finite-element, finite-volume, particle, or continuum solvers. - Deep understanding of coupled physical processes relevant to semiconductor or advanced manufacturing systems, such as heat transfer, stress and deformation, capillary flow, diffusion, plasma dynamics, electromagnetics, surf