Hardcore Engineer - Pre-training Infrastructure at xAI

Location: Palo Alto Employment Type: Full-time Salary: Not specified

About the Role

Tech Stack Python / Rust / C++ Linux and POSIX JAX and XLA ibverbs, NVLink (NCCL) CUDA (C++ and Triton) Location The role is based in Palo Alto, CA. Candidates are expected to be located near the Bay Area or open to relocation. Focus Design, build, and implement large-scale distributed training systems. Profiling, debugging, and optimizing multi-host GPU utilization. Hardware / Software / Algorithm co-design. Maintain and innovate on the codebase. Build tools to boost the productivity of the team. Ideal Experiences Experience in configuring and troubleshooting operating systems for maximum performance.  Built scalable training framework for AI models in HPC clusters, including but not limited to Scalable orchestration framework and tools Machine learning compilers and runtime such as XLA, MLIR, and Triton Distributed training strategies such as FSDP, Megatron, and pipeline parallelism NCCL or custom communication libraries for performant communication collectives Interview Process After submitting your application, the team reviews your CV and statement of exceptional work. If your application passes this stage, you will be invited to a 15-minute interview (“phone interview”) during which a member of our team will ask some basic questions. If you clear the initial phone interview, you will enter the main process, which consists of four technical interviews: Coding assessment in a language of your choice. Systems hands-on: Demonstrate practical skills in a live problem-solving session. Project deep-dive: Present your past exceptional work to a small audience. Meet and greet with the wider team. Our goal is to finish the main process within one week. All interviews will be conducted via Google Meet. Annual Salary Range $180,000 - $440,000 USD Benefits Base salary is just one part of our total rewards package at xAI, which also includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts and perks.

About xAI:

xAI's mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge.

• 🚀 Building Grok - advanced AI assistant
• 💻 Operating world-class AI supercomputing clusters
• 🎯 Small, highly motivated team focused on engineering excellence
• 🏢 Flat organizational structure with hands-on leadership

Founded by Elon Musk

Contact

Apply on Greenhouse
Apply: https://job-boards.greenhouse.io/xai/jobs/4533898007