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Join xAI as a Member of Technical Staff focusing on post‑training and RL to tackle reward modeling, preference optimization, and RL for reasoning.
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.
The Observability team at xAI builds and operates core infrastructure for metrics, logs, tracing, and alerting at massive scale. You will design scalable telemetry pipelines, develop APIs and UIs, and ensure reliability of the observability stack.
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.
Data Engineer/AI Engineer on xAI's Data team will develop scalable data pipelines for AI model training, ensuring high-quality data across the training lifecycle.
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.
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.
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.
Exceptional Designer at xAI in Palo Alto, CA. Design AI-powered consumer products, collaborate with engineering and research, and ship experiences.
Engineering Lead for Consumer Subscriptions at xAI, owning billing and monetization infrastructure for X Premium and SuperGrok, leading a team to build scalable revenue systems. The role drives revenue growth and shapes premium AI product experiences.
Design and optimize large-scale model serving systems for xAI's inference platform, focusing on distributed infrastructure, low-level optimizations, and reliability.
Application Security Engineer at xAI will secure cloud-native applications, CI/CD pipelines, and AI models by implementing code security practices, threat modeling, and vulnerability remediation. The role involves collaboration with development teams and staying ahead of emerging security threats.
Data Engineer at xAI will design and maintain scalable data pipelines to ensure high-quality training data for AI models, collaborating with ML and acquisition teams. The role focuses on data quality, transformation, and production systems.
We are seeking a Detection & Response Engineer to join xAI's security team, responsible for monitoring, investigating, and responding to security incidents across cloud-native and AI infrastructure, developing detection rules, leading incident response, and collaborating to improve security posture.
The Engineering Lead for Consumer Subscriptions at xAI will own the billing and monetization infrastructure for X Premium and SuperGrok, building scalable systems and leading a high‑performing engineering team. The role drives revenue growth through innovative subscription and promotion solutions.
Design and ship consumer products across X and Grok, working with engineering and research to create simple, elegant AI-driven experiences. Requires experience shipping consumer products, strong portfolio, and collaboration skills.
We are seeking a Cloud/Infrastructure Security Engineer at xAI to design secure cloud architectures, develop IaC with security controls, conduct assessments, and integrate security into CI/CD pipelines. The role requires 3‑5 years of experience and offers a salary of $200k‑$340k USD.
Senior Frontend Engineer role at xAI focusing on building and maintaining Starfleet and Toolbox platforms for human data collection and research orchestration, requiring React, TypeScript, full‑stack expertise, and strong product intuition.
IT Systems Engineer at xAI in Palo Alto, CA, responsible for building, managing, and supporting Windows and Linux infrastructure, virtualization, Puppet automation, and ensuring high‑availability systems.
We are seeking exceptional engineers to join xAI's Ads team, integrating Grok models into the advertising platform to power bidding, ranking, and creative generation. The role requires 3+ years experience building large-scale AI-driven ad products.
Senior Infrastructure Engineer on the US Government Team at xAI, designing and operating secure, scalable infrastructure for government AI projects using Kubernetes and GPU hardware.
Design, build, and optimize massive GPU clusters for AI training and inference; develop low-level CUDA kernels, Linux kernel internals, and custom orchestration; collaborate with research teams to accelerate supercomputer performance.
Design, build, and operate distributed data platform infrastructure (Kafka, Spark, Flink, Trino) to enable large‑scale data movement and processing for ML and product workloads at xAI. Collaborate with ML and product teams to ensure reliable, high‑performance pipelines handling petabyte‑scale data.
Join xAI's Grok product team to design and deliver scalable, user‑facing features and APIs for the Grok chat portal, handling millions of queries and driving a 10x productivity boost for knowledge workers. Collaborate with model and research teams to ship AI‑driven tools that delight millions.
As a multimodal engineer on the Imagine Model Team, you will develop cutting‑edge AI experiences beyond text, focusing on high‑fidelity understanding and generation across image and video modalities, and integrate audio where it enhances visual content. Responsibilities include data curation, modeling, training, evaluation, and collaboration with product teams to push model frontiers.
Build and scale high‑performance systems for Grok’s AI‑driven media experiences, designing data pipelines and infrastructure to deliver immersive multimodal content at global scale. Collaborate with cross‑functional teams to ship production‑ready features to millions of users.
The Imagine team is redefining AI-driven media experiences for Grok users worldwide. As a Product Safety Engineer on the Imagine team, you will build critical safety systems and infrastructure to ensure Grok’s multimodal generation capabilities are powerful, delightful, and responsibly deployed. Your work will directly shape how millions of users experience generative media — balancing rapid innovation with rigorous safety, trustworthiness, and alignment with xAI’s mission.
Member of Technical Staff - Media at xAI, building next‑generation large‑scale video services and integrating advanced AI infrastructure into a platform used by ~600 million users. Focus on high‑performance media processing in Rust, C++ or Go.
Mid‑training Member of Technical Staff at xAI focusing on scaling synthetic coding data, distilling model intelligence, and optimizing data mixtures for large‑scale AI training.
Join xAI's multimodal team to build large-scale distributed systems for multimodal AI, focusing on data pipelines, model training, and real-time interactions.
The Observability team at xAI builds and operates core infrastructure for metrics, logs, tracing, and alerting at massive scale. You will design scalable telemetry pipelines, develop APIs and UIs, and ensure reliability of the observability stack.
Member of Technical Staff role at xAI focusing on post‑training and reinforcement learning challenges such as reward modeling, preference optimization, and RL to improve reasoning and truthfulness. The position offers hands‑on work on critical AI safety and capability projects within a small, flat‑structured team.
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. Requires strong engineering, ML, and distributed training expertise.