x.AI LLC

Works on critical modeling challenges at xAI, focusing on truth‑seeking AI and building useful models.

We are seeking a UX Designer specializing in Growth/Monetization to own the end‑to‑end subscription experience for xAI’s consumer and platform products, designing high‑conversion journeys that boost sign‑ups, retention, and revenue.

We are seeking a dedicated and detail‑oriented People Operations Specialist to join xAI’s global People Operations team, supporting employees across EMEA, APAC, and the Americas with HR documentation, onboarding, job changes, off‑boarding, and process improvements.

We are seeking an exceptional Android engineer to join a small, high‑impact team at xAI, building the world’s most valuable AI application. The role involves shaping cutting‑edge mobile experiences using Kotlin, Jetpack Compose, and Rust, with strong product sense and ownership.

Software Engineer on the X Money team at xAI, building a global payment network for 600M users. Work involves backend microservices, full‑stack collaboration, and high‑scale AI‑driven finance.

Client Partner role at xAI involves building relationships with Fortune 500 companies and their advertising agencies, creating consultative sales strategies, and driving revenue growth for X's advertising products.

Forward Deployed Engineer for X Developer Platform, building production solutions and developer tools for X API, working with enterprise customers and improving developer experience.

The role seeks a UX Designer to own the end‑to‑end subscription experience, creating high‑conversion journeys for discovery, pricing, checkout, onboarding, billing, upgrades, retention, and churn prevention. Collaborating with growth, engineering, and revenue teams to translate data‑driven insights into intuitive, revenue‑focused designs.

Security Engineer - Governance Risk Compliance at xAI will lead governance, risk, and compliance initiatives for AI systems, ensuring adherence to federal regulations, conducting audits, and mitigating risks across AI operations. The role involves collaborating with cross-functional teams, managing certifications, and advising leadership on security posture.

Lead security threat management, incident response, and threat hunting, building detections and automations while collaborating across teams to improve security posture.

People Operations Specialist at xAI supporting global HR processes, onboarding, offboarding, and employee experience across EMEA, APAC, and the Americas.

Mobile iOS Engineer at xAI will design and ship high‑impact AI mobile experiences using Swift, focusing on performance and collaboration with AI researchers. The role emphasizes pixel‑perfect UI, concurrency, and rapid delivery in a fast‑paced environment.

Join xAI as a Mobile Android Engineer to design and ship cutting‑edge AI‑driven mobile experiences. Work on high‑impact product challenges with a small, high‑performing team in New York, Palo Alto, or remotely.

We are seeking a talented Software Engineer to join our X Money team, focused on building a revolutionary global payment network that will serve over 600 million users and rival the world’s largest financial institutions. In this role, you will specialize in backend development, designing and optimizing robust microservices to ensure scalability, security, and reliability. You will support full-stack efforts, collaborate with cross-functional teams on payments, fraud detection, and compliance initiatives, and contribute to the creation of a high-scale financial products platform.

HR Business Partner at xAI in New York, partnering with senior leaders to drive talent strategy, employee relations, and data-driven HR initiatives across technical and non-technical teams.

Software Engineer for X Product/Platform, joining a 30‑person team to build and scale X, owning system end‑to‑end development from UI to backend, data infrastructure, and AI integrations, and leading architecture for high‑concurrency services.

Software Engineer on xAI's Data team building scalable data pipelines for model training, collaborating with acquisition and ML teams, and ensuring high-quality data. The role involves developing enterprise data platforms, creating data lineage, and driving reliable training processes.

Join xAI's X Ads team as a Software Engineer to build scalable ad systems using AI. Early‑career engineers are welcome to learn and ship fast.

The Site Reliability Engineer - Cybersecurity at xAI will secure and maintain the reliability of the X Money platform, working with hybrid cloud, Kubernetes, Python, Terraform, and security tools. The role requires experience in banking security, certifications, and offers a salary of $180k‑$440k USD.

The Senior IT Systems Engineer at xAI in Palo Alto will own the design, deployment, and optimization of core SaaS platforms, manage IAM workflows, and drive automation to enhance security and operational efficiency. This role partners with multiple teams to scale the hybrid infrastructure supporting rapid growth.

Senior Analyst - Safety Operations at xAI involves monitoring and mitigating child safety threats, enforcing terms of service, and ensuring compliance with safety policies. The role requires expertise in CSAM detection, legal obligations, and collaboration with safety teams.

Security Engineer on the Platform Security team at xAI, building AI-driven security tools for Kubernetes infrastructure and advancing secure AI systems. Designs scalable security solutions and collaborates across the organization to champion secure engineering practices.

Security Engineer role at xAI designing and implementing security controls for Azure Government cloud, ensuring compliance with FedRAMP and CMMC, and protecting critical workloads.

Senior Network Security Engineer at xAI will design, implement, and secure cloud-native infrastructure, managing firewalls, routing, and switching systems in a fast-paced environment. The role requires deep expertise in network security technologies and collaboration within a small, highly motivated team.

Member of Technical Staff - X Search at xAI, building and operating the core search engine. Requires Python, Go, Rust, and experience with large‑scale search and ML ranking.

We’re seeking a Fullstack/Web Engineer to design and implement user‑facing features for real‑time conversations, focusing on frontend excellence and scalable backend systems.

Member of Technical Staff - Voice Product at xAI, building scalable voice infrastructure for Grok, collaborating across iOS, Android, and product teams, requiring Python/Rust and experience shipping features on mobile platforms.

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 natural, low-latency voice interactions. Work on cutting‑edge AI that makes talking to AI feel like conversing with a knowledgeable, charming person.

Experienced software engineer needed to design and maintain robust data pipelines, evaluation frameworks, and automation tools for AI research at xAI, focusing on RL infrastructure and large-scale model evaluation.

Applied engineer role focusing on recommendation systems and ranking algorithms at xAI, working on large-scale ML infrastructure for a product used by ~600 million monthly users. The position involves designing algorithms, building data pipelines, and ensuring scalability of AI systems.

We’re looking for exceptional storage and database engineers to join xAI on a new project to integrate advanced AI infrastructure into a platform used by ~600M users. Build and operate exabyte-scale storage, multi-tenant KV store, caching tier, vector DB, and other specialized databases, designing, launching, troubleshooting, and mentoring while ensuring reliability and performance.

Member of Technical Staff - Pre-Training at xAI involves training large-scale neural networks and developing new scaling paradigms, requiring expertise in ML, distributed training, and model‑hardware co‑design.

Join xAI as a Member of Technical Staff focusing on post‑training and RL to tackle reward modeling, preference optimization, and RL for reasoning.

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 advance superhuman multimodal intelligence. Design data pipelines, optimize GPU-intensive training, and build evaluation frameworks for cutting-edge multimodal AI.

The role focuses on scaling synthetic coding data and optimizing model training processes at xAI. It requires expertise in ML scaling, experiment design, and large‑scale data processing frameworks.

Build next‑generation large‑scale video services and media pipelines using high‑performance languages, ensuring quality for a platform reaching 600 M users.

The role involves designing and optimizing large‑scale inference platforms for xAI's Grok service, focusing on distributed infrastructure, low‑level GPU kernels, and high‑concurrency serving at massive scale.

The role focuses on designing and scaling safety systems for Grok's multimodal AI generation platform, ensuring responsible deployment of images, video, and audio. It involves building detection, moderation, and evaluation frameworks while collaborating with engineering and research teams.

Member of Technical Staff on the Imagine Product at xAI, building scalable, high‑performance systems for AI‑driven media experiences, focusing on multi‑modal AI, data pipelines, and cross‑functional collaboration.

Join xAI as a Member of Technical Staff on the Imagine Model team to develop cutting‑edge multimodal AI for image, video, and audio generation. Collaborate with product teams to advance AI capabilities and deliver exceptional user experiences.

Join xAI's Grok 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.

Design, build, and operate large-scale data platform infrastructure such as Kafka, Spark, Flink, and Trino to support petabyte-scale ML and product workloads at xAI.

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

Senior Infrastructure Engineer will design, build, and operate secure, scalable infrastructure for US government AI projects. Responsibilities include managing training and inference clusters, optimizing Kubernetes and GPU hardware, and ensuring compliance with federal standards.

Member of Technical Staff - Ads at xAI will integrate Grok models into the Ads Platform, building large‑scale advertising systems and owning revenue‑generating products. The role requires 3+ years of experience in high‑throughput AI advertising products.

The IT Systems Engineer at xAI will design, deploy, and manage Windows and Linux infrastructure, automate configurations with Puppet, and support virtualization to ensure system reliability and performance.

We are seeking a motivated IT Services Technician (Level 1) to provide first‑line technical support, troubleshoot hardware/software issues, assist with onboarding, and work after‑hours on‑site at Palo Alto HQ.

Senior Frontend Engineer to design and build performant, scalable user interfaces for xAI's Starfleet and Toolbox platforms, requiring React/TypeScript expertise, backend skills, and product ownership.

Infrastructure Security Engineer at xAI designs and implements secure cloud architectures, maintains IaC with security controls, and ensures the integrity of cloud-native applications across multiple platforms.

Design consumer products across X and Grok using AI‑assisted tools, collaborating with engineering and research teams. Requires experience shipping consumer products and strong communication.

Engineering Lead for Consumer Subscriptions at xAI will own billing and monetization infrastructure, lead a team, and drive revenue growth for X Premium and SuperGrok. The role requires 5+ years experience and offers $180k-$440k USD base salary.

We are seeking a skilled and proactive Detection & Response Engineer to join our security team. In this critical role, you will be responsible for detecting, investigating, and responding to security incidents across our cloud-native and AI-focused infrastructure. You will play a key part in safeguarding our innovative technologies and sensitive data.

Data Engineer at xAI designing scalable data pipelines for AI model training, ensuring data quality, and collaborating with ML teams.

We are seeking an Application Security Engineer at xAI in Palo Alto, CA to secure cloud‑native applications, CI/CD pipelines, and AI models throughout the software development lifecycle. The role requires 3‑5 years of experience and offers a salary of $200k‑$340k USD.

Application Security Engineer at xAI responsible for securing cloud-native applications, CI/CD pipelines, and AI models, focusing on code security, vulnerability mitigation, and threat modeling.

Software Engineer on xAI's Data team building scalable data pipelines for acquisition, preparation, training, quality evaluation, and delivery. Collaborates with ML and data engineers to ensure reliable, repeatable model training.

Software Engineer on the X Ads team at xAI, building and shipping ad delivery systems using AI infrastructure. You will work across product, backend, and AI features, taking ownership of scalable solutions.

Join xAI as a Site Reliability Engineer specializing in cybersecurity, ensuring security and reliability of X Money platform with Python, Terraform, and Kubernetes.

Senior Analyst - Safety Operations at xAI in Palo Alto, CA. The role involves training and refining Grok to enforce safety policies, investigate child safety threats, and mitigate CSAM, ensuring responsible AI development.

Security Engineer - Platform Security at xAI will design and build AI-driven security tools to protect Kubernetes-based infrastructure and secure AI systems. The role involves collaborating across teams, driving technical decisions, and ensuring robust security practices.

Security Engineer at xAI designs Azure Government security controls, ensures FedRAMP/CMMC compliance, and collaborates with engineering teams.

Network Engineer - AI/HPC at xAI designing and operating large-scale Ethernet networks for AI/HPC workloads, optimizing performance and availability, with travel to Memphis for infrastructure scaling.

The role is for a Member of Technical Staff on the X Search team at xAI, focusing on building and scaling search and retrieval algorithms, large‑scale search infrastructure, and integrating Grok’s reasoning capabilities. It requires expertise in Python, Go, Rust, vector databases, and large‑scale ML systems, and offers ownership of end‑to‑end search solutions.

Software Engineer for X Product/Platform at xAI, building and scaling core product used by 600M+ users, focusing on backend services, fullstack features, and AI integrations.

We’re seeking exceptional Fullstack/Web Engineers to design and implement user‑facing features for real‑time conversations, focusing on frontend development, modern web standards, and scalability. The role offers a competitive salary and collaboration with top talent at xAI.

Member of Technical Staff - Voice Product at xAI, designing and shipping scalable voice features for Grok across iOS, Android, and other platforms, collaborating with model and product teams.

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 needed to design robust data pipelines, evaluation frameworks, and automation tools for RL research at xAI. Work involves building environments, tools, and modular frameworks for large‑scale reinforcement learning.

Member of Technical Staff - Recommendation Systems at xAI in Palo Alto, CA. Design and architect recommendation algorithms, build data pipelines, and improve scalable ML systems for a product used by ~600M monthly users.

Join xAI as a Member of Technical Staff to design and operate exabyte-scale storage systems, requiring 7+ years experience and offering $180k-$440k salary.

Member of Technical Staff - Pre-Training at xAI: train large neural networks, implement SOTA methods, and scaling paradigms. Requires ML and distributed training.

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 to improve reasoning, truthfulness, and real‑world capabilities.

The Observability team at xAI designs and operates large‑scale telemetry infrastructure for metrics, logs, and tracing, handling billions of events and petabytes of data. You will own critical systems that provide real‑time insights and ensure reliability across the company's services.

Join xAI's multimodal team to develop large‑scale distributed systems for training and inference across vision, audio, video, and text, focusing on advancing multimodal intelligence and real‑time AI interactions.

Member of Technical Staff - Mid-training at xAI involves scaling synthetic coding data, distilling model intelligence, optimizing data mixtures, engineering long‑context data recipes, and developing evaluation for mid‑training checkpoints. Requires expertise in ML, large model scaling, experiment design, and large‑scale data processing frameworks like Spark and Ray.

We are seeking experienced media engineers to build next‑generation video services at xAI, integrating advanced AI infrastructure into a platform used by ~600 million users. The role involves high‑performance media processing in Rust, C++, or Go, focusing on quality and scalability.

Join xAI to design and optimize large‑scale inference systems for Grok, focusing on low‑level GPU kernels, distributed serving.

The role is a Product Safety Engineer on the Imagine team at xAI, focusing on building safety systems for multimodal AI generation (images, video, audio). It involves designing scalable safety infrastructure, detection systems, and evaluation frameworks to ensure responsible deployment.

Build and scale robust, high‑performance systems for AI‑driven media experiences on Grok, designing scalable infrastructure, data pipelines, and collaborating across teams to deliver production‑ready features.

Multimodal engineer on the Imagine Model team at xAI, focusing on developing advanced AI experiences across image, video, and audio modalities, improving data quality, designing evaluation frameworks, and integrating solutions into production.

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

Join xAI's Data Platform team to design and operate large-scale distributed systems for streaming, batch processing, and ML pipelines, ensuring high-throughput, low-latency data movement at petabyte scale. Work with Kafka, Spark, Flink, and Trino in a fast-moving environment.

Join xAI's Compute Infrastructure team to design and optimize massive GPU clusters and low-level systems for AI supercomputers, working across the full stack from kernel optimizations to distributed orchestration.

Senior Infrastructure Engineer on the US Government Team at xAI, designing and operating secure, scalable infrastructure for government AI projects. Requires TS clearance and 5+ years of experience.

We’re seeking exceptional engineers to integrate Grok into the Ads Platform, building large‑scale AI‑powered advertising systems and owning revenue‑driving products.

Senior Frontend Engineer to design and build user interfaces for xAI's Starfleet and Toolbox platforms, requiring React, TypeScript, backend code, and product ownership.

Infrastructure Security Engineer at xAI designs and implements secure cloud architectures, maintains IaC with security controls, conducts assessments, and integrates security into CI/CD pipelines. Requires 3‑5 years experience and offers $200k‑$340k base salary.

HR Business Partner supporting xAI's engineering team in Palo Alto, handling employee relations, performance management, and strategic HR initiatives.

Facilities Manager at xAI in Austin, TX, leading a team to maintain and improve facilities operations, ensure safety, and manage third‑party vendors, with a focus on onsite work and continuous improvement.

Porter role at xAI in Austin, TX, supporting food service and facility operations, maintaining cleanliness, restocking supplies, and ensuring safety.

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

Facilities Manager will lead a team to maintain and improve xAI's state-of-the-art infrastructure, ensuring zero unplanned service interruptions, enhancing safety, and managing all facilities operations.