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Jobs at SpaceXSI
270 open roles read nightly from companies’ own hiring pages. Each one links to the original ad.
241–260 of 270 jobs
AI Tutor, Writing - Temporary
10 months agoSpaceXSI · International, United States
RemoteTemporarySeniorFrom $35.00 an hourEducationUse proprietary software to label, annotate, and refine AI-generated text for clarity, structure, engagement, and domain-specific accuracy; Apply your writing specialty (e.g., creative fiction, game writing, technical writing) to deliver high-quality curated data that improves…
Structural Engineer, Data Center - Memphis
10 months agoSpaceXSI · Memphis, Tennessee, United States
Full-timeData & AILead structural design and analysis for large-scale data center and compute facilities, from conceptual design through construction administration; Develop and review structural models, calculations, drawings, and specifications using tools like Tekla Structures, ETABS, RISA,…
Sr. Backend Engineer, Enterprise
10 months agoSpaceXSI · Japan
SeniorEngineeringBuild 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. 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;…
Facilities Maintenance Assistant - Memphis
12 months agoSpaceXSI · Memphis, Tennessee, United States
Entry levelOperationsAssist in performing non-critical maintenance and repair work, including people door repairs, administrative area upkeep, building envelope maintenance, and/or landscaping; Under direct supervision of an operator, assist as required in the operation of critical equipment;…
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…
Dispute Analyst, X Money
12 months agoSpaceXSI · Bastrop, Texas, United States
Mid levelInvestigate incoming customer disputes across P2P, debit/credit card, and ACH transactions, ensuring compliance with internal policies and regulatory standards; Validate chargeback rights and ensure required documentation is complete before initiating a dispute with networks or…
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…
Support Agent, X Money
12 months agoSpaceXSI · Austin, Texas, United States +1
Mid levelCustomer success & supportServe as the first point of contact, embodying X Payments’s commitment to trust and excellence in every customer interaction; Respond to customer inquiries via phone, chat, and email with clarity, empathy, and precision, addressing issues related to login access, card usage,…
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…
AI Tutor, Legal & Compliance - Temporary
13 months agoSpaceXSI · International, United States
RemoteTemporaryMid levelFrom $50.00 an hourLegal & complianceUse proprietary software to provide accurate labels, annotations, and inputs on legal materials for AI model training; Curate high-quality data across a range of legal topics and scenarios, including legal research, analysis, writing, and the application of law to facts;…
AI Tutor, Applied Math - Temporary
13 months agoSpaceXSI · International, United States
RemoteTemporaryFrom $45.00 an hourEducationEvaluate model outputs, independently verify mathematical solutions, identify subtle errors in reasoning, modelling, or numerical computations, and produce clear, rigorous, and technically sound solutions and explanations; Use proprietary software applications to annotate and…
AI Tutor, Math - Temporary
13 months agoSpaceXSI · International, United States
RemoteTemporaryFrom $45.00 an hourEducationUse proprietary software applications to annotate and label data for designated projects; Support the delivery of high-quality, accurate, and well-curated datasets that meet project standards; Collaborate with technical teams to develop and train new tasks, contributing to the…
AI Tutor, Physics - Temporary
13 months agoSpaceXSI · International, United States
RemoteTemporaryFrom $45.00 an hourEducationUtilize proprietary software applications to annotate and label data for designated projects; Ensure the delivery of high-quality, accurate, and well-curated datasets that meet project standards; Play a key role in training and developing new tasks by collaborating closely with…
AI Tutor, Materials Science - Temporary
13 months agoSpaceXSI · International, United States
RemoteTemporaryFrom $45.00 an hourEducationUse proprietary software applications to annotate and label data for designated projects; Support the delivery of high-quality, accurate, and well-curated datasets that meet project standards; Collaborate with technical teams to develop and train new tasks, contributing to the…
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,…
Power Generation Engineer - Memphis
14 months agoSpaceXSI · Southaven, Mississippi, United States +1
Entry levelEngineeringOversee the daily operations of natural gas turbines and associated power generation equipment, ensuring optimal performance and compliance with safety and environmental standards; Monitor and analyze power generation systems to detect and resolve issues proactively, minimizing…
Software Engineer, Platform Security
14 months agoSpaceXSI · Palo Alto, California, United States
Mid level$140K – $225K 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…
Updated 06 Nov 2026 09:37 UTC from the OptiTalent job library.