OptiTalent · Job Finder
Engineering jobs in United States
88 open roles read nightly from companies’ own hiring pages. Each one links to the original ad.
61–80 of 88 jobs
Counts are paused for a minute after many searches; results are still current.
SpaceXSI · Southaven, Mississippi, United States +1
Mid levelEngineeringDevelop internal visual standards for internal work boards, JIRA queuing, PowerBI dashboards, and department workflow; Support department continuous improvement projects such as new process rollouts/standardization; Integrate with all levels of the business to understand…
Software Engineer, Ads Product
5 months agoSpaceXSI · Palo Alto, California, United States
$140K – $225K a yearEngineeringBuild and ship product features across the X Ads Platform; Work on systems related to ad delivery, targeting, optimization, measurement, and advertiser experience; Use SpaceXSI's infrastructure and AI capabilities to improve the performance and quality of advertising products;…
Software Engineer, Imagine Safety
5 months agoSpaceXSI · New York, United States +2
$140K – $225K a yearEngineeringDesign and implement scalable safety systems for Grok’s media generation platform, including real-time content moderation, risk detection, and safeguard enforcement for images, video, and audio; Build infrastructure to measure, monitor, and mitigate safety risks such as harmful…
SpaceXSI · Southaven, Mississippi, United States +2
Mid levelEngineeringManage the full lifecycle of project documents including engineering drawings, specifications, submittals, RFIs, change orders, test reports, quality records, permits, as-built drawings, and operations & maintenance manuals; Implement and maintain document control processes…
Civil Engineer - Memphis
5 months agoSpaceXSI · Memphis, Tennessee, United States
EngineeringOwn end-to-end civil and land development engineering for hyperscale data center campuses, power generation sites, turbine support areas, transformer yards, and industrial infrastructure — delivering complete site grading, stormwater management, underground utilities, and…
Electrical Engineer - Memphis
5 months agoSpaceXSI · Southaven, Mississippi, United States +1
Full-timeEngineeringDesign and engineer electrical systems for on-site power generation, high-voltage transmission, and large-scale battery energy storage supporting AI superclusters; Develop single-line diagrams, protection & control schematics, relay settings, and interconnection designs;…
Sr. Maching Learning Engineer, Search Ranking
6 months agoSpaceXSI · Palo Alto, California, United States
Senior$180K – $330K a yearEngineeringBuild search and retrieval algorithms that scale to millions of users; Build and operate large scale search engine and search infrastructure; Train state of the art ML ranking models; Integrate Grok in search systems and products
Model Engineer, Post-Training & RL
6 months agoSpaceXSI · Palo Alto, California, United States
$180K – $400K a yearEngineeringDesign and run rigorous experiments that turn research ideas into measurable gains in model capability; Improve model recipes through data quality, deduplication, and mixture experiments; Define what makes RL data and rewards good, including grader design and preventing reward…
Sr. Model Engineer, Multimodal Understanding
6 months agoSpaceXSI · Palo Alto, California, United States
Senior$220K – $357K a yearEngineeringDesign, build, and optimize large-scale distributed systems for multimodal pre-training, post-training, inference, data processing, and tokenization at web/petabyte scale; Develop high-throughput pipelines for data acquisition, preprocessing, filtering, generation, decoding,…
Sr. Software Engineer, Consumer Subscriptions
6 months agoSpaceXSI · Palo Alto, California, United States
Senior$180K – $330K a yearEngineeringOwn the complete billing infrastructure for consumer subscriptions end-to-end, ensuring world-class reliability, security, and scalability; Design and build sophisticated promotional offer infrastructure and internal tools to supercharge the revenue organization; Develop…
Sr. Software Engineer, X Money
6 months agoSpaceXSI · New York, United States +1
Senior$180K – $330K a yearEngineeringDevelop backend services, APIs, and data models to support high-volume, multi-user environments; Work with iOS, Android & Web client engineers to ship products; Design robust infrastructure and microservices for payments, transactions, growth, monetization, and engagement…
Sr. Web Engineer (X)
7 months agoSpaceXSI · Palo Alto, California, United States
Senior$180K – $330K a yearEngineeringOwn 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…
Software Engineer, Voice Product
7 months agoSpaceXSI · New York, United States +2
$140K – $225K a yearEngineeringOwn 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; Drive performance, reliability, and quality of voice interactions at global…
Model Engineer, Voice
7 months agoSpaceXSI · Palo Alto, California, United States
$160K – $250K a yearEngineeringDesign, build, and maintain large-scale distributed data pipelines that ingest, process, and annotate real-world and synthetic audio, so the training and evaluation systems get reliable, high-quality data; Build and optimize the distributed training infrastructure and software…
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…
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…
Updated 07 Nov 2026 10:21 UTC from the OptiTalent job library.