Hardcore Engineer - Infrastructure/Supercomputing jobs in United States
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xAI · 1 day ago

Hardcore Engineer - Infrastructure/Supercomputing

positionPalo Alto, CA
timeFull-time
remoteOnsite
senioritySenior Level
money$180K/yr - $440K/yr

xAI is on a mission to create AI systems that can understand the universe and aid humanity. They are seeking a Hardcore Engineer to design and build large-scale distributed systems and optimize performance across diverse systems to accelerate scientific discovery.

Artificial Intelligence (AI)Foundational AIGenerative AIInformation TechnologyMachine Learning
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Growth Opportunities
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H1B Sponsor Likelynote

Responsibilities

Design, build, and implement a large-scale distributed system that powers one of the world's largest supercomputing clusters
Dive into the low-level stack to profile, debug, and optimize performance across diverse systems, including GPUs, Linux kernel, networking, and filesystems, to achieve peak efficiency
Collaborate on hardware, software, and algorithm co-design to push the boundaries of AI training
Maintain and innovate on our codebase to ensure scalability and reliability
Develop tools to enhance team productivity and streamline workflows

Qualification

RustC++GolangDistributed systemsGPU optimizationLinux kernelNetworkingFilesystemsTerraformAnsibleAutomation librariesPrioritization skillsCommunicationWork ethic

Required

Strong communication skills
Ability to concisely and accurately share knowledge with teammates
Experience in designing, building, and implementing large-scale distributed systems
Experience in profiling, debugging, and optimizing performance across diverse systems including GPUs, Linux kernel, networking, and filesystems
Experience in collaborating on hardware, software, and algorithm co-design
Experience in maintaining and innovating on codebases for scalability and reliability
Experience in developing tools to enhance team productivity and streamline workflows
Proficiency in Rust, C++, and Golang

Preferred

Experience writing scalable and highly available containerized applications in Rust
Experience managing compute fleets with Pulumi, Terraform, Ansible, or other stateful automation libraries
Experience collaborating in a fast-paced, open environment to design and ship features

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

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XAI is an artificial intelligence startup that develops AI solutions and tools to enhance reasoning and search capabilities.
dateFounded in 2023
location
Burlingame, California, USA
people-size11-50 employees
web-link
https://x.ai

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 Stage
Total Funding
$42.73B
Key Investors
Neptune Digital AssetsSpaceXMorgan Stanley
2026-01-06Series E· $20B
2025-12-11Secondary Market· $0.3M
2025-07-13Corporate Round· $5.32B

Leadership Team

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Toby Pohlen
Founding Member
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Recent News

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Company data provided by crunchbase