Fullstack Engineer - Companions jobs in United States
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xAI · 2 hours 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 can accurately understand the universe and aid humanity in its pursuit of knowledge. They are seeking exceptional multimedia engineers and product thinkers to enhance Grok's realtime avatar products, ensuring they are fast, scalable, and reliable. The role involves pushing forward audio and gameplay research and deploying innovations to millions of users while maintaining high performance and quality standards.

Artificial Intelligence (AI)Foundational AIGenerative 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 experiencePrioritization 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
Strong communication skills
Strong work ethic and prioritization skills

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
Palo Alto, 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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Greg Yang
Co-Founder
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Yuhuai Wu
Co-Founder
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Recent News

Digital Journal
Musk’s Grok created three million sexualized images, research says
2026-01-23
Mashable
Grok is producing millions of sexualized images of adults and children
2026-01-23
Edmonton Sun
CPP Investment Board scrutinized for $416M investment in Elon Musk's AI bot
2026-01-23
Company data provided by crunchbase