xAI · 16 hours ago
Member of Technical Staff - Macrohard
Palo Alto, CA
Full-time
Onsite
Mid, Senior Level
$180K/yr - $440K/yrxAI is on a mission to create AI systems that can understand the universe and aid humanity. The role involves building intelligent agents that can master tasks on a digital desktop, requiring exceptional engineering skills and a focus on quality and rigor.
Artificial Intelligence (AI)Foundational AIGenerative AIInformation TechnologyMachine Learning
Responsibilities
Designing architectures
Collecting and curating high-quality interaction data
Pre-training foundation models
Mid-training, fine-tuning, RL and post-training recipes
Build and iterate on high quality evals
Deploy and improve the flywheel
Qualification
Required
Exceptional engineers who own work end-to-end and thrive in meritocratic environments
Obsessed with quality, rigor, and first-principles thinking
Write clean, efficient code
Run tight experiments
Hold yourself (and your teammates) to the highest standards
Deep expertise or hands-on experience in one or more of the following areas: Pushing the boundaries of multimodal foundation models (vision + language + action/computer-use traces), crafting pre-training and mid-training data recipes, building robust infrastructure and frameworks that power the full agent lifecycle, applying RL techniques to train agents that generalize across complex, long-horizon computer-use tasks reliably
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
2026-01-12
Company data provided by crunchbase