Senior/principal-level engineer with deep experience building zero-to-one products Strong command over system design across backend, compute, and data layers Experience building and shipping simulation-heavy or data-intensive workflows Experience working with performance-sensitive code (C++, Python, or other modern languages) Ability to choose and integrate the right technology based on constraints (C++, Python, CUDA, GPU libraries, ML frameworks, rendering engines) Experience architecting pipelines involving optimization, numerical analysis, or scientific computation Ability to independently deliver a working product slice in weeks Strong intuition for glueing together APIs, LLMs, numerical code, and UI Clear communication with non-software domain experts Bias toward shipping, learning, and iterating Comfort owning ambiguous, open-ended problem spaces