Jobs at x.ai - Page 2

• Take high- and medium-voltage assets from steel in the ground to carrying load, then own their reliability in operation.
• Own the substation and transmission energization plan: pre-energization checks, phasing verification, synchronizing checks, and staged load ramp.

• Conduct in-depth code reviews and static analysis to identify and mitigate security vulnerabilities in our applications
• Design and implement secure coding guidelines and best practices for development teams

• Leverage the latest Grok models to power all stages of our advertising stack, from candidate selection to ranking, auction, campaign optimization, creative generation, and advertiser experience.
• Own and operate systems and products, driving the majority of revenue.

• Own backend engineering for scalable, low-latency voice infrastructure and model integrations.
• Collaborate directly with Grok Voice model, media, and product teams to deliver end-to-end experiences.

• Dream up and craft delightful, intuitive user experiences that redefine how people interact with AI on mobile.
• Obsess over every pixel, animation, and interaction, ensuring the experience feels magical and seamless.

• Work in a team environment with other engineering disciplines to provide detailed electrical design and specification for the installation of the following equipment and systems:

Electrical power distribution systems.
Switch-gear and motor control centers.
Exterior and interior lighting.
Ground support system controls and ladder logic.
Uninterruptible power supply (UPS) units.
Standby and emergency generators.
Automatic transfer switches.
Power monitoring hardware and software.
Data/phone distribution and wiring.
Building and site grounding systems.
Fire alarm systems and lightning protection systems.

• Proficient in Kotlin, Jetpack Compose and reactive programming.
• Has a strong product sense and high craft bar. Builds intuitive and delightful user experiences.

• Design and implement scalable observability infrastructure for metrics, logging, and tracing.
• Build high-performance telemetry pipelines that handle massive ingestion volumes.

• Design, validate, and productize high-speed copper and optical connectivity solutions for AI clusters (100k+ GPU scale).
• Own vendor due diligence and onboarding for new 1.6T products including AEC and pluggable optical transceivers (DR4/8, FR4) including rigorous bring-up & characterization.

• Develop routing and traffic-engineering algorithms for the Colossus high-performance datacenter network.
• Develop highly reliable, real-time software designed to run on the switches that form the backbone of our low-latency, high-bandwidth AI training fabric.

• Own full lifecycle delivery of electrical construction projects (high-voltage substations, transformers, switchgear, BESS, data-center power distribution, UPS, generators, and low-voltage systems) with on-time and under-budget results
• Serve as the overall construction project manager and extreme owner in the field and office

• An exabyte-scale S3-compatible object store
• A multi-tenant transactional key/value store that serves 100s of millions requests per second

• Build the next generation of large-scale video services
• Contribute to and rebuild core media processing and distribution pipelines in high-performance languages (Rust, C++ or Go)

• Design and implement scalable systems to support Grok's AI-driven media experiences, ensuring high performance, reliability, and low-latency at global scale.
• Architect robust infrastructure for real-time multi-modal interactions, including handling generation requests, media processing, and seamless integration with frontend and model serving layers.

• Help lead SpaceXSI's data strategy by implementing established ETL patterns, creating and supporting dependable infrastructure, and reusable components.
• Partner with business and engineering teams to prioritize requests and consistently deliver excellent results against time-sensitive priorities.

• Own and drive features from inception and design to implementation and launch, being the web expert on your team.
• Build and maintain high-quality, performant products and features, leveraging the most modern and cutting edge web standards, technologies, frameworks, and AI tooling.

• Build, manage, and support complex application stacks on Windows Server

• Administer on-premises Active Directory (domain controllers, Group Policy, identity, and access)

• Own the single model of record for the Memphis campus: load flow, short circuit, coordination, arc flash, motor starting, harmonics, transient stability, and EMT studies for grid-forming inverter interaction with generation.
• Create and maintain sitewide power budgets, monitoring, and metering for mission-critical asset...

• 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 from our network and compute hardware.

• Design, build, and optimize massive GPU clusters for extreme-scale training and inference workloads
• Develop and tune low-level CUDA kernels (GeMM, Attention, etc.), using CUTLASS, Tensor Cores, and Nsight for maximum performance