Systems Software Engineer, xAI
Linux or Windows
+ Equity
Building artificial intelligence
Open for applications
Building artificial intelligence
1001+ employees
Open for applications
+ Equity
1001+ employees
Company mission
To build AI systems that can help humanity understand the world better.
Role
Who you are
- Expert knowledge of Rust, C++ or Go
- Familiarity with Python
- Solid understanding of Linux; knowledge of other operating system is a plus
- Familiarity with virtualization techniques and implementations
- Good knowledge of network stack
What the job involves
- The sandbox execution team at xAI develops and maintains a system for rapidly running untrusted software in a controlled and secure environment
- The system is used both in training and production
- When training a model using reinforcement learning, the infrastructure is used to host software environments so the model can interactively learn to use tools such as compilers
- In production, we rely on our sandboxing infrastructure so that Grok can generate and evaluate code when answering questions
- The work in this role is highly technical as we need to maintain rigid security standards while allowing our users to rapidly iterate without sacrificing reliability
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 technical questions
- If you clear the initial phone interview, you will enter the main process, which consists of at least two technical interviews:
- Coding interview in Rust or C++
- Distributed systems design interview
Salary benchmarks
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.
Share this job
View 124 more jobs at xAI