Software Engineer, xAI

• Strong software engineering fundamentals
• Ability to write clean, maintainable code and learn new codebases quickly
• Strong problem-solving skills and comfort working through ambiguity
• Experience building software through internships, projects, research, open-source work, startups, or full-time roles
• Interest in backend systems, distributed systems, data pipelines, product engineering, or AI applications
• A bias toward action: you like shipping, learning from real users, and improving quickly
• Strong ownership mindset and willingness to take responsibility for meaningful parts of the product
• Excitement about building high-quality product experiences for advertisers and users

Desirable

• You’ll work on systems that operate at massive scale, directly affect the business, and are being rebuilt with modern infrastructure and AI at the center
• This is an opportunity to join a small, fast-moving team where early-career engineers can take on real ownership, learn from strong engineers, and ship products that matter
• We’re looking for high-slope software engineers who want to help rebuild and transform the X Ads Platform using xAI’s infrastructure and AI stack
• This role is a great fit for engineers who are early in their careers but learn quickly, ship fast, and want to work on products and systems that operate at massive scale
• You do not need to have deep ads experience already, but you should be excited to learn how large-scale advertising systems work and how AI can make ads more relevant, useful, and effective
• You’ll work across product, backend systems, infrastructure, and AI-powered features that directly impact the majority of X’s revenue
• Build and ship product features across the X Ads Platform
• Work on systems related to ad delivery, targeting, optimization, measurement, and advertiser experience
• Use xAI’s infrastructure and AI capabilities to improve the performance and quality of advertising products
• Contribute to distributed systems that need to be reliable, fast, and scalable
• Collaborate closely with engineers, product leads, and cross-functional partners to turn ideas into working products
• Learn quickly, take ownership, and operate in a fast-moving environment where high-quality execution matters
• Debug, maintain, and improve production systems that serve real users and drive significant business impact
• You do not need to know every technology listed below. We care more about strong fundamentals, learning speed, and ability to ship; React, Golang, Python, Rust, gRPC and Java / Scala