SASS Jobs

SpaceXSI is building one of the world's largest AI supercomputers from the ground up. As part of the Compute Infrastructure team, you will own both the raw GPU supercomputer and the platform layer that runs on top of it. You will work across the full stack—from low-level GPU kernel optimizations and Linux kernel internals to massive-scale orchestration and virtualization—to make training and inference at SpaceXSI as fast, reliable, and scalable as possible. This is a broad, high-impact role that combines hardcore supercompute and compute infrastructure work. Your contributions will directly accelerate Grok's training speed and overall AI progress.

$180k - $440k

SF Tensor is building the future of high-performance compute for AI by rethinking and rebuilding the entire stack, from hardware to cloud. We aim to eliminate the friction that slows down AI development, making compute faster, cheaper, and more accessible. Our Kernel Optimizer automatically finds the fastest code for any hardware, and our Model Foundry manages workloads across clouds and chips. We are backed by leading investors and are seeking individuals passionate about advancing AI through compute innovation.

$285k - $315k

We are seeking a Member of Technical Staff for GPU Compiler Engineering to build the machine that drives our cutting-edge GPU compiler. This role involves working on the entire pipeline, from StableHLO ingestion to backend code generation and executable binary creation. You will enhance our search-based compiler infrastructure, enabling agents and RL to find optimal code forms while guaranteeing correctness. This is an opportunity to work at the foundational level of the AI stack, directly impacting the speed and cost of large-scale training runs.

$285k - $315k