x.AI LLC

Lead day-to-day security threat management and incident response at xAI. Identify threats, develop detections, and automate responses using Python.

People Operations Specialist at xAI supports global HR functions, handling onboarding, employee records, process improvements, and employee inquiries across multiple regions.

Mobile Android Engineer at xAI, building cutting‑edge AI‑powered mobile experiences. Work on high‑impact product challenges, using Kotlin, Jetpack Compose, and Rust, with opportunities for equity and comprehensive benefits.

Software Engineer on the X Money team building a global payment network, designing backend microservices and leading architecture for high‑scale systems. The role involves collaboration across full‑stack teams and focuses on scalability, security, and reliability.

The HR Business Partner at xAI partners with senior leaders to support talent strategy, employee development, and organizational design across technical and non‑technical teams, focusing on recruitment, performance management, and people analytics.

Client Partner at xAI drives revenue by partnering with Fortune 500 firms and agencies, crafting consultative ad strategies, and mentoring a media team.

Forward Deployed Engineer for X Developer Platform: build production solutions, sample apps, and DevEx tools using X API, collaborating with enterprise customers. Work directly with customers to accelerate adoption of X's API ecosystem.

Senior BSA/AML Investigator at xAI, focusing on detecting and preventing financial crimes, preparing SARs, and mentoring junior staff. In-office position in New York or Palo Alto.

Security Engineer for Governance, Risk, and Compliance at xAI, focusing on implementing and auditing security controls, managing risk assessments, and ensuring regulatory compliance for AI initiatives, especially in government and public sector contexts. The role collaborates with cross-functional teams to safeguard AI development and deployment.

Security Engineer - Detection & Response at xAI, responsible for leading day-to-day security threat management, incident response, threat hunting, and improving security processes and automation.

The People Operations Specialist will support global HR functions, manage employee documentation, onboarding, job changes, off‑boarding, and improve HR processes across EMEA, APAC, and the Americas. The role requires strong organizational skills, confidentiality, and a client‑service mindset in a fast‑paced startup.

We’re seeking an exceptional iOS engineer to join a small, high‑impact team dedicated to creating the world’s most valuable AI application, judged by its impact on users. You’ll shape cutting‑edge mobile experiences, blending technical mastery with product brilliance.

We are seeking a talented Software Engineer to join xAI's X Money team, building a global payment network for 600M users. The role involves backend development, microservices, full‑stack work, and scaling high‑concurrency systems.

We’re looking for exceptional Fullstack / Web Engineers to design and optimize user‑facing features for real‑time conversations, working across the stack with a focus on frontend and modern web technologies.

Software Engineer role on X Core Product at xAI, building scalable backend services, APIs, and data infrastructure for high‑volume consumer applications, impacting 600M+ users.

Software Engineer on xAI's Data team building scalable data pipelines for AI model training. Collaborate with ML engineers and acquisition teams to ensure reliable, high‑quality data pipelines.

Software Engineer on the Ads Product team at xAI will design and ship scalable ad delivery systems using AI infrastructure. The role offers early‑career engineers ownership and impact on a high‑traffic platform.

The Site Reliability Engineer - Cybersecurity role at xAI focuses on securing and maintaining the reliability of the X Money platform in a hybrid cloud environment, working with large distributed systems, automation, and security tools.

The Senior IT Systems Engineer at xAI in Palo Alto, CA will lead the design, implementation, and optimization of core SaaS platforms, manage IAM, and drive automation. This role partners with IT, security, HR, finance, and engineering to ensure high‑availability, secure systems.

Security Engineer will design and build AI-driven security tools for xAI's Kubernetes platform, focusing on protecting AI-driven systems and advancing secure engineering practices. The role requires expertise in Python, Rust, or Go and experience with cloud-native security.

xAI is hiring an Azure Security Engineer to design, implement, and maintain security controls across its Azure Government cloud environment, ensuring compliance with FedRAMP and CMMC. The role involves close collaboration with engineering and DevOps teams to embed security throughout the development lifecycle.

We are seeking a seasoned Senior Network Security Engineer to join xAI's security team, focusing on network security technologies, firewalls, routing, and cloud-native infrastructure. The role offers the chance to work on cutting‑edge AI‑driven security solutions.

Join xAI as a Network Engineer to design high‑speed interconnects for AI clusters. Palo Alto, CA. $180k‑$440k USD.

Network Engineer - AI/HPC at xAI, responsible for designing, operating, and optimizing large‑scale Ethernet AI/HPC networks, using NCCL and Python automation, with travel to Memphis for infrastructure scaling.

Member of Technical Staff on the X Search team at xAI, building and operating a large-scale search engine using Python, Go, Rust, and ML ranking models.

The role involves designing and building voice features for Grok. You will own backend engineering for scalable voice infrastructure, collaborate across iOS, Android, and product groups, and work with Python or Rust.

Join xAI's Grok Voice Model team to design and execute large-scale speech data pipelines, pre-train and post-train speech-language models, and build evaluation frameworks for low-latency voice AI.

Experienced software engineers will design and maintain data pipelines, evaluation frameworks, and automation tools to enhance LLM research productivity at xAI. The role involves creating robust environments, improving observability, and standardizing preprocessing for large‑scale RL training.

Member of Technical Staff - Real-Time Storage at xAI, designing and operating large-scale storage and database systems for AI infrastructure, requiring 7+ years of software development experience.

Member of Technical Staff - Pre-Training at xAI, focusing on training large neural networks, implementing state-of-the-art deep learning methods, and innovating scaling paradigms.

Member of Technical Staff - Post-Training and RL at xAI, focusing on post‑training and reinforcement learning challenges such as reward modeling, preference optimization, and RL for reasoning, truthfulness, and real‑world capabilities.

Join xAI's Observability team to design and implement scalable telemetry infrastructure for metrics, logs, and tracing. You will own systems that power real-time insights and ensure reliability at massive scale.

Applied engineer role focusing on recommendation systems, ranking algorithms, and search technologies at xAI, working on large-scale ML infrastructure and user impact. You will design algorithms, build data pipelines, and ensure scalability for products used by 600 million monthly users.

Join xAI's multimodal team to develop large‑scale distributed systems for multimodal pre‑training, post‑training, and inference, collaborating across research and product to build models that understand multiple modalities in real time.

Mid‑training Member of Technical Staff at xAI: scale synthetic data, distill model intelligence, and optimize data mixtures.

Join xAI as a Member of Technical Staff - Media to develop high‑performance video services and pipelines, ensuring quality for 600M users.

Designs and optimizes large‑scale model serving infrastructure for xAI's Grok platform, focusing on distributed systems, GPU kernel optimizations, and low‑latency inference. Owns end‑to‑end reliability and performance for millions of users.

Member of Technical Staff - Imagine Safety at xAI focuses on designing and implementing scalable safety systems for Grok's multimodal media generation platform. The role ensures responsible deployment of images, video, and audio while collaborating with product and research teams.

Design and implement scalable systems for AI-driven media experiences at xAI's Imagine Product, building high-performance, low-latency infrastructure for multi-modal media interactions and collaborating with cross-functional teams to deliver production-ready code to millions of users.

Multimodal engineer on the Imagine Model Team at xAI, developing advanced AI for image, video, and audio generation and understanding. Collaborate with product teams to push model frontiers and deliver end‑to‑end user experiences.

Join the Grok Main Product team to design and deliver scalable user‑facing features and APIs for the Grok chat portal, focusing on high‑performance systems and user delight.

The Data Platform team at xAI builds and operates large‑scale data transport and processing infrastructure, including Kafka, Spark, Flink, and Trino, enabling real‑time ML pipelines and analytics at petabyte scale. Engineers design high‑throughput, low‑latency systems, scale multi‑tenant Kafka, and optimize distributed compute platforms.

Design, build, and optimize massive GPU clusters for extreme-scale AI training and inference, working across low-level kernel optimizations, Linux internals, and large-scale orchestration to accelerate xAI's training speed.

Senior Infrastructure Engineer on xAI's US Government Team, designing and operating secure, scalable infrastructure for government projects, focusing on training/inference clusters, Kubernetes, GPU hardware, and compliance.

We’re looking for exceptional engineers to join xAI’s Ads team, integrating Grok models into the advertising platform to power bidding, ranking, auction, and creative generation, owning systems that drive revenue.

IT Systems Engineer at xAI responsible for building, managing, and supporting Windows and Linux server infrastructure, virtualization, and automation using Puppet and VMware.

The IT Services Technician (Level 1) at xAI provides first‑line technical support for hardware, software, and network issues, handles onboarding, and works on‑site evenings. Salary ranges from $90,000 to $110,000 plus equity.

Senior Frontend Engineer at xAI will own and elevate two mission‑critical platforms, Starfleet and Toolbox, building performant user interfaces and production backend code. The role requires React, TypeScript, and full‑stack expertise.

The role seeks a Cloud/Infrastructure Security Engineer to design, implement, and maintain secure cloud architectures, manage IaC with security controls, and integrate security into CI/CD pipelines for xAI's cloud-native applications.

Exceptional Designer role at xAI in Palo Alto, CA, focusing on designing consumer products across social and AI-driven platforms, collaborating with engineering and research, and requiring experience in product design and AI tools.

Engineering Lead role at xAI leading billing and monetization for consumer subscriptions, building scalable systems and leading a high‑performing team.

Data Engineer role at xAI focusing on building data pipelines, ensuring data quality for model training, and collaborating with ML teams.

Application Security Engineer at xAI in Palo Alto, CA, responsible for securing cloud-native applications, integrating security into CI/CD pipelines, and addressing AI model security. Requires 3-5 years experience and offers $200k-$340k base salary.

We’re seeking exceptional Fullstack/Web Engineers to design and optimize user‑facing features for real‑time conversations, focusing on frontend excellence and scalable backend systems. The role involves architecture, performance, and collaboration across a small, high‑motivation team.

Software Engineer for X Core Product at xAI in Palo Alto, CA, building scalable backend services, APIs, and AI integrations for high‑volume consumer applications. Requires 2+ years experience and offers $180k‑$440k USD base salary.

Join xAI as a Software Engineer on the Data team to build scalable data pipelines, ensure data quality, and enable model training at scale.

Software Engineer role at xAI focusing on Ads Product, building scalable ad systems with AI. Early‑career engineers ship features across the Ads Platform and collaborate with product and engineering teams.

The role is for a Site Reliability Engineer focusing on cybersecurity for X Money, a hybrid cloud platform in the banking/payments industry. Responsibilities include securing infrastructure, managing identities, building secure container standards, and maintaining Kubernetes and CI/CD pipelines using Python, Terraform, and Puppet.

Senior IT Systems Engineer at xAI in Palo Alto, CA, focusing on SaaS platform administration, IAM, automation, and cross‑functional technical leadership.

We are seeking a Security Engineer to join xAI's Platform Security team, where you will design AI-powered security tools to protect Kubernetes infrastructure and advance secure AI systems. The role involves building scalable security solutions, addressing vulnerabilities, and championing secure engineering practices.

Security Engineer at xAI designs and implements security controls for Azure Government cloud, ensuring compliance with FedRAMP and CMMC, and collaborates with engineering teams to protect critical workloads. The role involves building robust security architecture, threat detection, and incident response.

Senior Network Security Engineer at xAI: design, implement, and secure cloud-native AI infrastructure with firewall, routing, and cloud platform expertise.

The Member of Technical Staff role on the X Search team at xAI involves building and scaling a large‑scale search engine, developing retrieval and ranking algorithms, and integrating Grok’s reasoning capabilities. The position emphasizes ownership of end‑to‑end search infrastructure and requires strong experience with Python, Go, Rust, and production ML systems.

Member of Technical Staff - Voice Product at xAI, designing and shipping scalable voice features for Grok across iOS, Android, and backend infrastructure. Collaborate with cross-functional teams to deliver end-to-end voice experiences.

Join xAI's Grok Voice Model team to design and execute large-scale speech data pipelines, pre-train and post-train speech-language models, build evaluation frameworks, and integrate voice models into products. Work on low-latency, multilingual voice AI.

Join xAI as a Member of Technical Staff to develop data pipelines, evaluation frameworks, and automation for RL research. The role involves designing robust environments, tools, and CI/CD for AI agent development.

Applied engineer role focusing on recommendation systems, ranking algorithms, and search technologies at xAI, building scalable ML pipelines and enhancing user experience.

Member of Technical Staff - Real-Time Storage at xAI, focusing on building and operating large-scale storage and database systems, designing features, ensuring reliability, and collaborating with customers.

Member of Technical Staff - Pre-Training at xAI, focusing on training trillion‑parameter neural networks, implementing state‑of‑the‑art deep learning methods, and innovating new scaling paradigms.

Member of Technical Staff - Post-Training and RL at xAI in Palo Alto, CA. Work on critical post‑training and reinforcement learning challenges such as reward modeling and RL for reasoning.

The Observability team at xAI builds and operates scalable telemetry infrastructure for metrics, logs, and tracing, handling massive volumes of data. The role involves designing pipelines, APIs, and ensuring reliability of observability platforms.

Join xAI's multimodal team to develop large‑scale distributed systems for training and inference, design data pipelines, and advance multimodal reasoning and generation across vision, audio, video, and text. Collaborate across research and product groups to build models that see, hear, and interact with the world in real time.

Join xAI as a Mid‑Training Member of Technical Staff to scale synthetic coding data, distill model intelligence, optimize data mixtures, engineer long‑context data recipes, and develop evaluation frameworks for mid‑training checkpoints. Requires expertise in ML, large model scaling, experiment design, and large‑scale data processing.

Join xAI as a Member of Technical Staff in Media to build next‑generation large‑scale video services, improve media quality, and work with advanced AI infrastructure serving millions of users.

Design and optimize large‑scale inference serving systems for xAI's Grok model, focusing on distributed infrastructure and low‑level GPU optimizations. Own the full stack to ensure high performance and reliability.

Member of Technical Staff on the Imagine team at xAI, building scalable safety systems for multimodal AI media generation (images, video, audio). Design and implement detection and moderation infrastructure while collaborating with product and research teams.

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 interactions—leveraging cutting-edge AI to enable seamless generation, processing, and delivery of images, video, audio, and beyond. Your work will drive engaging, real-time user experiences that captivate and delight millions, turning advanced multimodal models into production-grade features.

Multimodal engineer at xAI building advanced AI experiences across image, video, and audio modalities, focusing on data curation, model training, and evaluation. The role involves designing scalable pipelines, evaluation frameworks, and integrating solutions into production.

Join xAI's Grok product team to design and deliver scalable user-facing features and APIs for the Grok chat portal, owning end-to-end projects and optimizing data pipelines to enhance a high-traffic AI experience.

Member of Technical Staff - Data Platform at xAI builds and operates large-scale data ingestion, processing, and streaming infrastructure using Kafka, Spark, and Flink, focusing on high-throughput, low-latency systems for ML pipelines.

Design, build, and optimize massive GPU clusters for AI training and inference; develop low-level CUDA kernels; work on Linux kernel and distributed systems; collaborate with AI research teams.

Senior Infrastructure Engineer for the US Government Team at xAI, designing and operating secure, scalable infrastructure for government AI projects using Kubernetes, GPU hardware, and IaC tools.

We’re seeking exceptional engineers to join xAI’s Ads team, integrating Grok models into the advertising stack to power bidding, ranking, auction, and campaign optimization, driving revenue at scale.

The role involves building and managing complex Windows and Linux server environments, virtualization, and automation with Puppet. It requires 3‑5 years of systems engineering experience.

Senior Frontend Engineer will own and elevate two mission-critical platforms (Starfleet and Toolbox) for xAI’s frontier research, requiring React/TypeScript, backend skills, and strong product intuition.

Join xAI as Infrastructure Security Engineer to design secure cloud architectures, implement IaC with security controls, and protect AI workloads.

The Growth Marketing Manager – Lifecycle will own and optimize the post‑acquisition customer journey for xAI’s subscription products, designing and executing multi‑channel automated campaigns to boost engagement, retention, and revenue. They will collaborate with product, data, and customer success teams to drive measurable growth.

The Facilities Manager will lead a team maintaining and enhancing xAI's state-of-the-art infrastructure, ensuring zero unplanned service interruptions, managing third-party vendors, and driving efficiency across facilities operations.

Barista position at xAI in Austin, TX, involving customer service, beverage preparation, maintaining a clean workspace, and supporting company morale.

The Growth Marketing Manager – Lifecycle at xAI will own and optimize the full post‑acquisition customer journey for subscription products, building automated, personalized campaigns across multiple channels to boost engagement, retention, and revenue. The role requires collaboration with product, data, and customer success teams to drive measurable improvements in key metrics.

Entry-level Porter supporting xAI's food service and facility operations in Austin, TX, responsible for cleanliness, restocking, and assisting kitchen staff.