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Jobs in California, United States
83 open roles read nightly from companies’ own hiring pages. Each one links to the original ad.
61–80 of 83 jobs
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Software Engineer, Kernels/CUDA (C++)
8 months agoSpaceXSI · Palo Alto, California, United States +1
$160K – $250K a yearEngineeringDesign, 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; Profile, debug, and eliminate bottlenecks…
Software Engineer, Imagine Product
8 months agoSpaceXSI · New York, United States +2
$140K – $225K a yearEngineeringDesign 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…
Model Engineer, Imagine
8 months agoSpaceXSI · Palo Alto, California, United States
$160K – $250K a yearEngineeringCreate and drive engineering agendas to advance multimodal capabilities, with emphasis on image and video generation, editing, understanding, controllable/long-horizon synthesis, agentic planning, RL training, and world simulation (including audio integration for richer video…
Software Engineer, Grok Product
8 months agoSpaceXSI · New York, United States +2
$140K – $225K a yearEngineeringDesign and build the systems that make Grok useful for everything from quick questions to useful work; Architect high-performance systems for personalized, reliable interactions at global scale; Build and optimize data pipelines using real-time user signals to drive product…
SpaceXSI · Palo Alto, California, United States
Senior$180K – $330K a yearITDesign, 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 &…
SpaceXSI · New York, United States +2
Mid level$100K – $198K a yearSecurityExecute security compliance implementation and audits across core frameworks including SOC 2, NIST CSF, NIST SP 800-53, ISO 27001, ISO 42001, and the EU AI Act, including control design, mapping, gap assessment, evidence collection, and remediation tracking; Build and maintain…
Sr. Machine Learning Engineer, Ads
11 months agoSpaceXSI · Palo Alto, California, United States
Senior$180K – $330K a yearData & AILeverage 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
Mobile iOS Engineer
11 months agoSpaceXSI · New York, United States +1
$140K – $225K a yearEngineeringCraft delightful, intuitive user experiences that redefine how people interact with the app; Obsess over every pixel, animation, and interaction, ensuring the experience feels magical and seamless; Build blazing-fast, highly performant systems where every millisecond counts;…
Model Engineer, Mid-Training
12 months agoSpaceXSI · Palo Alto, California, United States
$180K – $440K a yearEngineeringScale synthetic coding data to trillions of tokens with large-scale docker verification; Distill the intelligence of flagship models into flash models through synthetic data generation; Optimize mid-training data mixtures to boost the ceiling for RL; Engineer long-context data…
Client Account Manager
12 months agoSpaceXSI · Austin, Texas, United States +2
Mid level$65K – $145K a yearSalesCollaborate with Fortune 500 advertisers to understand their objectives, recommend best practices, and develop effective, high-impact advertising campaigns; Educate and consult clients on how to leverage X’s advertising products, sharing best practices to create and execute…
Sr. Software Engineer, Network Software & Services
12 months agoSpaceXSI · Palo Alto, California, United States
Senior$180K – $330K a yearEngineeringBuilding software and tools with extensive metrics coverage for some of the world’s largest GPU supercomputing network fabrics used for AI training and serving customer inference queries; Implement IaC best practices, enhancing deployment pipelines, and ensuring robust, secure…
Mobile Android Engineer
13 months agoSpaceXSI · New York, United States +1
$140K – $225K a yearEngineeringCraft delightful, intuitive user experiences that redefine how people interact with the app; Obsess over every pixel, animation, and interaction, ensuring the experience feels magical and seamless; Build blazing-fast, highly performant systems where every millisecond counts;…
IT Systems Engineer
14 months agoSpaceXSI · Palo Alto, California, United States
Mid level$162K – $226K a yearEngineeringBuild, manage, and support complex application stacks on Windows Server; Administer on-premises Active Directory (domain controllers, Group Policy, identity, and access); Deploy, configure, and support VMware vSphere technologies, including vCenter and ESXi; Deploy, configure,…
Software Engineer, Platform Security
14 months agoSpaceXSI · Palo Alto, California, United States
Mid level$100K – $198K a yearSecurityDesign and build AI-driven security tooling and agents using Grok to identify, analyze, and mitigate vulnerabilities in the platform infrastructure and customer facing application(s); Proactively identify security problems to solve and own the design and implementation…
Sr. Software Engineer, Real-Time Storage
15 months agoSpaceXSI · Palo Alto, California, United States
Senior$180K – $330K a yearEngineeringDesign, build, and launch to production new features and improvements aimed at unifying common components across the storage systems; Dive into performance issues and work with customers and deliver solutions to cater to customers’ latency, availability and data durability…
Sr. Software Engineer, Media
15 months agoSpaceXSI · Palo Alto, California, United States +1
Senior$180K – $330K a yearEngineeringBuild 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); Ensure end-to-end media quality and performance at scale across a rich suite of products and…
Sr. Software Engineer, Observability
15 months agoSpaceXSI · Palo Alto, California, United States
Senior$180K – $330K a yearEngineeringDesign and implement scalable observability infrastructure for metrics, logging, and tracing; Build high-performance telemetry pipelines that handle massive ingestion volumes; Develop APIs, query engines, and UIs that allow engineers to get real-time insights into their…
Sr. Software Engineer, Data Platform
15 months agoSpaceXSI · Palo Alto, California, United States
Senior$180K – $330K a yearData & AIDesign and implement high-throughput, low-latency data ingestion and transport systems; Scale and optimize multi-tenant Kafka infrastructure supporting real-time workloads; Extend and tune Spark, Flink, and Trino for demanding production pipelines; Build interfaces, APIs, and…
Sr. Network Security Engineer
15 months agoSpaceXSI · Austin, Texas, United States +3
Senior$180K – $330K a yearSecurityServe as a subject matter expert in network security, particularly firewalls, VPNs, IDS/IPS, routing protocols (e.g., BGP, OSPF), and switching technologies; Manage and update firewall configurations across our enterprise network to align with operational and security needs;…
Barista
17 months agoSpaceXSI · Palo Alto, California, United States
Mid levelFrom $26.00 an hourHospitality & retailSet up, work, and maintain a clean and safe work station; Complete daily prep tasks; Help the team meet time and quality standards set by supervisor; Clean and maintain departmental tools and equipment, i.e. drip coffee stations; Provide good customer service; Inventory/order…
Updated 07 Nov 2026 10:21 UTC from the OptiTalent job library.