OptiTalent · Job Finder
Engineering jobs
92 open roles read nightly from companies’ own hiring pages. Each one links to the original ad.
61–80 of 92 jobs
Counts are paused for a minute after many searches; results are still current.
Software Engineer, Network (C++)
4 months agoSpaceXSI · Palo Alto, California, United States +1
Mid level$140K – $225K a yearEngineeringDevelop 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; Participate in and…
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. Backend Engineer, API
6 months agoSpaceXSI · London, England, United Kingdom
Senior£107K – £262K a yearEngineeringBuild and maintain the unified inference stack as the single surface area for all inference needs across the company; Own and evolve the platform services that power Chat API, Imagine API, Voice API, Grok Build, and Grok Bot; Design, build, and maintain Chat API features…
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 · London, England, United Kingdom
Senior£107K – £262K 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. 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…
Updated 07 Nov 2026 10:21 UTC from the OptiTalent job library.