Fullstack Engineer - Companions jobs in United States
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xAI · 1 day ago

Fullstack Engineer - Companions

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

xAI is on a mission to create AI systems that understand the universe and assist humanity in gaining knowledge. They are seeking a Fullstack Engineer to enhance Grok's realtime avatar products, focusing on speed, scalability, and reliability while ensuring high performance across media processing pipelines.

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

Responsibilities

Make Grok's realtime avatar products fast, scalable, and reliable
Help push forward audio and gameplay research and deploy breakthrough innovations to millions of users
Obsess over every millisecond and byte, ensuring end-to-end quality and performance at scale across a rich suite of products and user platforms

Qualification

PythonWebSocketWebRTCRustIOS experienceMedia processing pipelinesPrioritization skillsCommunication skillsWork ethic

Required

Well-versed in low-latency systems and protocols like WebSocket and WebRTC
Expert in Python, and preferably proficient in Rust
In-depth knowledge and experience building high performance media processing pipelines
Obsessed with media quality, performance, and product experience

Preferred

Some iOS experience preferable

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
Growth Stage
Total Funding
$22.73B
Key Investors
Neptune Digital AssetsSpaceXMorgan Stanley
2025-12-11Secondary Market· $0.3M
2025-07-13Corporate Round· $5.32B
2025-07-01Debt Financing· $5B

Leadership Team

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Toby Pohlen
Founding Member
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Recent News

Media Nama
What Do Grok’s Enterprise Plans Actually Mean for Business Users?
2026-01-04
WebProNews
xAI Sues OpenAI for Poaching Staff and Stealing AI Secrets
2026-01-03
Mercury News
Musk’s xAI buys building to expand ‘colossus’ data center
2026-01-03
Company data provided by crunchbase