xAI
Open positions
Software Engineer (Network, C++)
As a Software Engineer on the Colossus Networking team, you will develop the core networking software that maximizes the performance and reliability of our datacenter fabric Your work will directly impact training…
Senior Network Security Engineer
We are seeking a seasoned Senior Network Security Engineer to join our dynamic security team Serve as a subject matter expert in network security, particularly firewalls, VPNs, IDS/IPS, routing protocols (e.g., BGP,…
AI Tutor - Design Specialist
SpaceXAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our team is small, highly motivated, and focused on engineering excellence. This…
X Analytics Engineer
We are seeking a skilled Analytics Engineer to build and maintain robust data systems that enable high-impact quantitative analysis and business decision-making This role combines strong software engineering practices…
Human Data Engineer
You will ensure engineering teams get the right data they need—high-quality tasks and evaluations—by crafting and executing high-value Human Data projects You sit at the intersection of engineering and data operations:…
Software Engineer (Network Software & Services)
As part of the Network Software and Services for AI (nssAI) team at SpaceXAI, you’ll build cutting-edge software, services, and frameworks to empower our Network Development Engineers Working hands-on, you’ll tackle…
Software Engineer (X Developer Platform)
The X Developer Platform team owns the partner ecosystem that connects X with B2B and B2C developers around the world X reaches more than 500 million active users who produce billions of posts every week, and that…
Software Engineer (Search Infrastructure)
As a backend engineer, you’ll design and build scalable, high-performance systems that power subscriptions infrastructure, new monetized products, user growth, and creator monetization You’ll work on mission-critical…
Senior Security Engineer (GRC Fintech & Financial Services)
We are seeking an experienced Governance, Risk, and Compliance (GRC) Engineer focused on fintech and financial services regulation to help scale compliance for SpaceXAI and xMoney. As we operate deeper in regulated…
Software Engineer (Linux Kernel, C++, C)
Build and maintain the lean, high-reliability Linux-based operating system that underpins our supercomputer network fabric Write (or rewrite) high-performance device drivers to extract the maximum physical capability…
Backend Engineer (API)
Build the xAI API that serves our models to developers worldwide Own the end-to-end system responsible for high-throughput inference, handling billions of tokens per minute with low latency and high availability,…
Application Security Engineer
We are seeking a skilled and innovative Application Security Engineer to join our technology-driven company In this role, you will be responsible for ensuring the security and integrity of our cloud-native applications…
Software Engineer (Evals)
You will own and elevate our mission-critical research platform that directly accelerates SpaceXAI’s frontier work The evals team creates and executes instruments for measuring model capabilities and behaviors. These…
Software Engineer (Platform Infrastructure, Rust, C++)
Design, build, and implement a large-scale distributed system that powers one of the world’s largest supercomputing clusters Dive into the low-level stack to profile, debug, and optimize performance across diverse…
ML Infrastructure Engineer
As an ML Infrastructure Engineer, you will play a pivotal role in building and optimizing the reliable, high-performance ML platform that powers recommendations on X Designing, building, and scaling GPU compute…
Software Engineer (Voice Model)
You will join the Grok Voice Model team to help build the world’s best voice AI. We deliver smooth, natural, low-latency spoken interactions — expressive, multilingual, and reliable across devices and real-time…
Member of Technical Staff (Imagine Product)
The Imagine Product team is redefining AI-driven media experiences for Grok users worldwide In this role, you’ll build and scale robust, high-performance systems that power immersive, multi-modal media…
Software Engineer (Real-Time Storage)
We’re looking for exceptional storage & database engineers who want to join us on a new project to deeply integrate xAI’s advanced AI infrastructure into a platform used by around 600 million users every month We’re…
Software Engineer (Data Platform)
The Data Platform team at X builds and operates the infrastructure responsible for all large-scale data transport and processing across the company We own and manage core systems including Apache Kafka, HDFS, Spark,…
Mobile Android Engineer
We’re seeking an exceptional Android engineer to join a small, high-impact team dedicated to creating the world’s most valuable AI application, judged by the impact it delivers to users You’ll shape cutting-edge mobile…