Jobs at xAI

Lead development of reliable, high-performance software infrastructure for training Grok models across massive GPU clusters. Responsibilities include architecting training systems, guiding hardware and architecture decisions, prototyping designs, optimizing performance, collaborating across engineering teams, and leading planning and milestone execution.

Designs, implements, and optimizes enterprise IAM across on-premises, cloud, and SaaS environments. The role architects federation solutions, manages identity lifecycle, RBAC, PAM, and just-in-time access, and integrates platforms including SailPoint, Okta, PingOne, and Microsoft Entra ID. Responsibilities include developing Terraform and scripting automation, supporting AWS and GCP IAM strategies, troubleshooting identity systems, guiding teams, meeting compliance requirements, and participating in on-call incident response.

Build and ship scalable software across the X Ads Platform, including ad delivery, targeting, optimization, measurement, advertiser experiences, and AI-powered features. Develop reliable distributed systems, improve production services, debug issues, and collaborate with product and engineering teams. The role emphasizes ownership, rapid learning, high-quality execution, and meaningful product impact at massive scale.

Develop and optimize large-scale GPU supercomputing infrastructure for AI training and inference. Build low-level CUDA kernels using CUTLASS, Tensor Cores, and Nsight; profile and resolve performance bottlenecks across GPU memory, networking, filesystems, and multi-GPU systems; and collaborate with AI researchers to deliver scalable, production-grade compute performance.

Build and improve the X iOS app, delivering intuitive, high-performance features and pixel-perfect user experiences. Own features end to end, make technical and product decisions, collaborate across design and engineering teams, run experiments, optimize performance, integrate APIs and AI model outputs, and proactively improve product quality and usability.

Design and optimize large-scale model-serving systems for Grok, including distributed infrastructure, batching, caching, load balancing, autoscaling, GPU kernels, quantization, speculative decoding, and tail-latency improvements. Build high-concurrency, reliable inference services, benchmarking and debugging tools, CI/CD deployment infrastructure, and systems supporting test-time compute, reinforcement-learning rollouts, and model-hardware co-design.

Build and optimize large-scale data pipelines and infrastructure using distributed processing and streaming technologies. Develop statistical models, experimentation frameworks, forecasting methods, and performance measurement systems. Ensure data quality, monitoring, alerting, and automation for analytical workflows and real-time decision support. Collaborate with product, engineering, and operations teams to deliver production-grade data systems and insights, while mentoring team members on scalable data engineering and quantitative analysis.

Build and improve high-performance Android applications with delightful user experiences. Responsibilities include developing with strong attention to performance and interaction quality, making technical and product decisions, collaborating with cross-functional engineering and design teams, owning product quality, running A/B tests, analyzing user feedback and metrics, and delivering production features for a large-scale AI application.

Build and operate distributed real-time and batch data pipelines processing billions of daily events. Create shared datasets, internal data products, workflow automation, and data-quality systems. Partner with product, business, AI, legal, finance, and sales teams to identify data gaps, solve large-scale challenges, and deliver reliable insights and metrics.

Build, own, and improve the evals platform that measures model capabilities and behaviors. Design datasets and grading schemes, manage execution infrastructure, diagnose failures, and deliver robust tools engineers use to clean data, provide experiment feedback, and track model growth.

Owns end-to-end planning and execution of VIP, customer, third-party, and special events. Responsibilities include vendor sourcing, agendas, registration, executive communication, onsite management, creative event branding, budgeting, logistics, inventory, gifting, and administrative process automation using AI. The role partners with Growth, Sales, Community, Developer Relations, Merchandising, and security teams to expand enterprise awareness and deliver high-quality customer experiences. Frequent travel, extended hours, weekends, and background checks for Air Force and NASA installation access are required.

Perform first-line KYC and sanctions reviews, investigate complex cases, resolve identity mismatches, review OFAC and PEP alerts, conduct EDD, adverse media, KYB, and UBO checks, document decisions, quality-review cases, identify trends, update procedures, and support banking partners and regulators.

Build scalable AI safety systems for Grok’s multimodal media generation, including real-time moderation, risk detection, safeguards, monitoring, evaluation frameworks, and feedback loops. The role addresses harmful content, bias, deepfakes, intellectual property, and misuse while maintaining performance and low latency. Responsibilities span prototyping through deployment, incident response, and refinement, requiring collaboration with engineering, research, product, and policy teams.

Build scalable, user-facing features and APIs for Grok’s chat portal. Responsibilities include designing high-performance systems, developing experimentation frameworks, optimizing real-time data pipelines, and owning projects from ideation through deployment and monitoring. The role focuses on delivering reliable, intuitive experiences at global scale and collaborating with model and research teams to improve AI-powered products.

Build and ship voice features for Grok across iOS, Android, and other product surfaces. Own backend engineering for scalable, low-latency voice infrastructure and model integrations, while collaborating with voice model, media, research, and product teams. Drive performance, reliability, and quality at global scale, contributing as a backend-focused generalist across platforms and product groups.

Build and scale high-performance systems for Grok’s AI-driven, multimodal media experiences. Responsibilities include designing real-time infrastructure, developing large-scale pipelines for image, video, and audio data, integrating frontend and model-serving layers, and owning solutions from prototyping through deployment, monitoring, and optimization. The role delivers production-grade features supporting millions of users and requires collaboration with engineering, research, and product teams.

Own the commerce platform billing roadmap across Grok, X, Grok Bot, and Cursor. Define purchase flows, subscriptions, payment integrations, promotions, and billing metrics. Lead issue triage, coordinate engineering fixes, and partner with support, finance, legal, tax, and compliance teams. Contribute code for prototypes, tooling, analysis, and small fixes while driving global payments expansion and revenue growth.

Administer Tableau Server for 700 users across 12 department sites, managing upgrades, patches, licenses, SSO, data drivers, access, troubleshooting, and support requests. Build decision-ready dashboards and data products, maintain report inventories, guide migration or retirement decisions, and establish standards for data access, row-level security, and visualization quality. Partner with business stakeholders and developers while using AI tools to accelerate analysis, development, and migrations.

Coordinate onsite and virtual interviews, manage candidate logistics, host candidates, maintain Greenhouse records, support recruiting stakeholders, improve processes, and recommend efficient recruiting strategies. The role requires strong organization, communication, multitasking, adaptability, and occasional overtime in a fully in-office environment.

Analyze and prioritize vulnerabilities using CVSS, vector strings, MITRE ATT&CK, reachability, and impact assessments. Develop Python automation for security data from CSV, Excel, JSON, and REST APIs. Create dashboards and reporting solutions, collaborate with stakeholders to improve security posture, and support vulnerability mitigation. Preferred experience includes Elastic/OpenSearch, Kibana/Grafana, cloud platforms, security automation playbooks, and agentic vulnerability-management workflows.