xAI · 3 months ago
Member of Technical Staff, Pre-training Scaling, Data and Eval
San Francisco & Palo Alto, CA
Full-time
Onsite
Senior LevelxAI is focused on creating AI systems that can accurately understand the universe and aid humanity. The role involves working on multimodal pre-training to develop an omni model capable of processing text, image, video, and audio, with a focus on training large neural networks at scale and improving data quality across modalities.
Artificial Intelligence (AI)Foundational AIGenerative AIInformation TechnologyMachine Learning
Responsibilities
Training trillion parameter neural networks at scale, as well as a variety of smaller specialized models
Rapidly implementing the latest state-of-the-art methods from the deep learning literature
Innovating new ideas for pretraining and new scaling paradigm
Improving pretraining data quality at scale across different modalities
Qualification
Required
Strong engineering skills with passion to improve different aspects of data and model
Expert in ML and large model scaling, familiar with all kinds of scaling laws
Familiar with distributed training, multi-GPU neural network training and experience on optimizing ML training efficiency
Familiar with state-of-the-art techniques for preparing AI training data
Good at organizing and meticulously bookkeeping data across multiple clouds, of multiple modalities, and from many sources
Strong communication skills
Ability to concisely and accurately share knowledge with teammates
Benefits
Equity
Comprehensive medical, vision, and dental coverage
Access to a 401(k) retirement plan
Short & long-term disability insurance
Life insurance
Various other discounts and perks
Company
xAI
XAI is an artificial intelligence startup that develops AI solutions and tools to enhance reasoning and search capabilities.
Founded in 2023
11-50 employees
H1B Sponsorship
xAI has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
Funding
Current Stage
Late StageTotal Funding
$42.73BKey Investors
Neptune Digital AssetsSpaceXMorgan Stanley
2026-01-06Series E· $20B
2025-12-11Secondary Market· $0.3M
2025-07-13Corporate Round· $5.32B
Leadership Team
Greg Yang
Co-Founder
Yuhuai Wu
Co-Founder
Recent News
2026-01-25
2026-01-24
Company data provided by crunchbase