xAI · 5 months ago
Software Engineer - Multimodal Infrastructure
San Francisco & Palo Alto, CA
Full-time
Onsite
Mid Level
$180K/yr - $440K/yrxAI is on a mission to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. They are seeking a Software Engineer specializing in Multimodal Infrastructure to develop and optimize scalable frameworks for large-scale machine learning tasks, including model training and data processing.
Artificial Intelligence (AI)Foundational AIGenerative AIInformation TechnologyMachine Learning
Responsibilities
Design, build, and implement large-scale distributed training systems
Profiling, debugging, and optimizing GPU utilization for multimodal model training and inference
Building scalable infrastructure for multimodal data management and crawling
Hardware / Software / Algorithm co-design
Qualification
Required
Strong engineering skills with passion to improve different aspects of data and model
Has worked on one or more modalities other than text for model training/serving optimization
Keeping up with state-of-the-art techniques for preparing multimodal training data
Design, build, and implement large-scale distributed training systems
Profiling, debugging, and optimizing GPU utilization for multimodal model training and inference
Building scalable infrastructure for multimodal data management and crawling
Hardware / Software / Algorithm co-design
Strong communication skills
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
Toby Pohlen
Founding Member
Recent News
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2026-01-19
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Company data provided by crunchbase