Member of Technical Staff - Evaluation Infrastructure
xAI · Palo Alto, CA
About this role
**SpaceXAI — Member of Technical Staff (Evaluation Infrastructure)** SpaceXAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our team is small, highly motivated, and focused on engineering excellence. We operate with a flat organizational structure—everyone is expected to be hands-on, contribute directly to the mission, and communicate clearly. --- ### About the Role The RL infrastructure team is looking for an engineer to help develop our evaluation infrastructure. ### Responsibilities - Build highly reliable, efficient, and easy-to-use infrastructure that runs all evaluations at scale - Collaborate closely with modeling & evaluation teams on developing new evals, maintaining evaluation signal quality, and building internal tooling to support training next-generation models - Identify and resolve performance bottlenecks across the evaluation infrastructure stack (e.g., inference, capacity fleet management, asynchronous eval orchestration, and more) ### Basic Qualifications - Experience building, debugging, and optimizing efficiency of large-scale distributed systems - Willingness to dive deep and solve hard problems across all levels of the stack ### Preferred Skills and Experience - Experience in LLM inference - Experience in GPU compute management, workload scheduling, and dynamic resource optimization - Experience developing interfaces for comparing models and evals ### Compensation and Benefits - **$180,000 - $440,000 USD** (base salary) - Total rewards also include equity, comprehensive medical/vision/dental coverage, 401(k), disability and life insurance, and additional discounts/perks *SpaceXAI is an equal opportunity employer. For details on data processing, see the [Recruitment Privacy Notice](https://x.ai/legal/recruitment-privacy-notice).*
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