Software Engineer, xAI
Brand Safety, Ads
$180-440k
+ Equity
Office located in Palo Alto, CA
Building artificial intelligence
Open for applications
Building artificial intelligence
1001+ employees
Open for applications
$180-440k
+ Equity
Office located in Palo Alto, CA
1001+ employees
Company mission
To build AI systems that can help humanity understand the world better.
Role
Who you are
- 2+ years of industry experience working with large-scale, high-throughput distributed systems
- Experience in building large scale and performant advertising systems is plus
- Experience with trust and safety teams or organizations focused on online safety is nice to have
What the job involves
- We’re looking for an exceptional engineer to join our Ads Brand Safety engineering team, re-envisioning and re-building Brand Safety systems from first principles using xAI’s cutting-edge AI and infra. Brand Safety plays a critical role in the overall success of advertising
- System Design & Development: Architect and build scalable systems to detect, moderate, and mitigate brand unsafe and unsuitable content from first principles using cutting-edge models and infra from xAI
- Policy Enforcement: Collaborate with client partnership, policy, and ops teams to translate brand safety policies into technical requirements and automated solutions
- Machine Learning & AI: Leverage machine learning models, AI infra, and Grok LLM to enhance content detection accuracy and efficiency
- Incident Response: Lead rapid response efforts for brand safety incidents, ensuring swift resolution and post-incident analysis to prevent recurrence and maintain advertiser trust
- Tech Stack: Golang, Python, Rust, gRPC, Scala
Application process
- After submitting your application, the team reviews your CV and statement of exceptional work. If your application passes this stage, you will be invited to a 15 minute interview (“phone interview”) during which a member of our team will ask some basic questions
- If you clear the initial phone interview, you will enter the main process, which consists of four technical interviews:
- Coding assessment in a language of your choice
- Systems hands-on: Demonstrate practical skills in a live problem-solving session
- Meet and greet with the wider team
Our take
xAI is Elon Musk's venture into the world of artificial intelligence, and like all things Musk, it's going big. Its setting out to build AI that helps humanity understand the universe and its starting with Grok, its conversational AI chatbot already integrated into X (formerly Twitter). With access to real-time data and a powerful ecosystem of Musk-led companies, xAI is certainly pushing towards artificial general intelligence at serious scale.
Like all bold ventures, xAI has faced its share of controversy, from questions about regulation to the overlap across Musk's businesses. But fans are still seeing the bigger picture: an interconnected tech ecosystem where AI, social media, and space exploration feed into one another.
Recently, the company made headlines with its massive "Colossus" supercomputer project, powered by tens of thousands of Nvidia GPUs. While the data center's temporary power setup has faced environmental scrutiny, the scale of ambition is certainly undeniable. From launching tap-to-pay features on X to building one of the most powerful AI training systems on Earth, xAI is moving fast.
Steph
Company Specialist at Welcome to the Jungle
Company
Funding (last 2 of 4 rounds)
Jul 2025
$5bn
GROWTH EQUITY VC
Dec 2024
$6bn
SERIES C
Total funding: $17.1bn
Company benefits
- Health and wellness: Comprehensive health insurance including medical, dental, vision, and disability coverage
- Life and family: Life and AD&D insurance and fertility benefits to ensure our team’s well-being and peace of mind
- Flexible vacation: We work hard but avoid burn out. Take time off when you need it
- Visa sponsorship: We support international talent with visa sponsorship to join our team
- 401(k) plan: Retirement savings plan to secure your financial future
Company HQ
Downtown, Burlingame, CA
Leadership
Elon Musk
(Founder)Founder, Chairman, CEO, and CTO of SpaceX. CEO and Product Architect of Tesla. Chairman and CTO of X Corp, founder of the Boring Company, co-founder of Neuralink and OpenAI, and president of the Musk Foundation.
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