Senior Research Engineer, CFD Algorithm Development

Job Description: • Lead the creation of differentiable CFD frameworks in JAX, extending capabilities to complex geometries and non-periodic boundary conditions using immersed boundary methods • Design, implement, and containerize code (Docker/enroot) to ensure reproducibility and scalability across multi-node GPU HPC environments • Develop optimized parallel linear solvers (FFT or matrix decompositions) and gradient-based scripts to iteratively modify reactor designs based on catalyst activity • Rigorously validate simulation accuracy against benchmark results and fixed-bed reactor configurations for both non-reactive and reactive flow regimes • Partner with AI model developers to integrate property predictions and generate comprehensive technical reports summarizing algorithm scalability and differentiability Requirements: • PhD or MS in Computational Physics, Mechanical/Chemical Engineering, Computer Science, or equivalent • 3+ years (including PhD) of hands-on experience in CFD code development, specifically on GPUs • Proven ability to build scalable software on multi-GPU systems using JAX, PyTorch, CUDA, or MPI frameworks • Full fluency in numerical linear algebra, PDE numerical methods, sparse/dense linear solvers, and immersed boundary methods • Excellent Python programming skills, with JAX proficiency as a prerequisite • Ability to manage multiple deliverables and produce clear technical documentation for milestone reviews Benefits: • Comprehensive medical, dental, and vision coverage for employees and dependents with generous employer premium contributions • Retirement savings with company matching • Paid parental leave • Inclusive family-building benefits • Flexible paid time off • Company-wide seasonal breaks • Support for flexible work arrangements that enable sustainable performance • Opportunities for continuous learning and growth through on-the-job development, cross-functional collaboration, and access to internal learning and development programs Apply tot his job Apply To this Job