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x.ai
x.ai
201 – 500 Employees
APIArtificial Intelligence
x.ai develops artificial intelligence technologies centered on Grok, its family of language models. The company provides an API that enables developers to build applications with Grok foundation models, including capabilities focused on advanced reasoning. Its public beta program supports experimentation with the API through free developer credits. x.ai’s work spans AI engineering and research, with opportunities particularly related to reasoning, data, and language-model development.
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Lead Software Engineer, Human Data Operations – California Remote

Lead AI Tutor teams that produce training data and evaluations for SpaceXAI models. Oversee quality, coaching, labeling operations, certifications, and process improvement across Human Data projects.

USUnited StatesCACalifornia
$104,000 – $170,400 / year
RemoteFull-timeSeniorEnglish RequiredFull-stack EngineerSoftware Engineer
SQL

Description

  • Lead AI Tutors delivering training data and evaluations for SpaceXAI models
  • Own end-to-end quality and delivery for assigned Human Data projects
  • Review domain work for accuracy, consistency, guideline compliance, and scalable quality
  • Manage AI Tutor performance through coaching, reviews, records, action plans, shadow sessions, and continuous improvement
  • Oversee and contribute to labeling and review activities
  • Manage taxonomies and quality assurance workflows
  • Identify operational bottlenecks, improve processes, and monitor KPIs through dashboards
  • Create, maintain, and deliver training materials, practice tasks, and certification benchmarks
  • Manage certifications and workforce adjustments
  • Partner with Human Data Managers, Team Leads, and Engineering on labeling strategies and requirements
  • Develop talent while supporting accountability, performance standards, and disciplinary processes
  • Document outcomes and report project status, risks, and results
  • Represent tutors and strengthen collaboration across the Human Data organization

Requirements

  • At least one year of hands-on experience in data labeling, annotation, AI training or evaluation, content quality, or a comparable operational field
  • Professional experience developing scalable, high-performance technology applications
  • Experience with data quality metrics, annotation workflows, and guideline-based processes
  • Foundational knowledge of AI and machine learning, including how training data quality affects model performance
  • Experience in performance management, coaching, training program development, and certification frameworks
  • Must be based in one of the listed countries where SpaceXAI maintains a physical office; remote work is available
  • Preferred experience leading small teams in data labeling, annotation, or related operations
  • Preferred data analysis skills and experience with relevant tools; SQL is a plus
  • Preferred experience managing mixed employment types or distributed teams
  • Preferred specialization or strong domain expertise in Finance, STEM, Coding/Software Engineering, or another technical field

Benefits

  • Equity
  • Comprehensive medical, vision, and dental coverage
  • 401(k) retirement plan
  • Short- and long-term disability insurance
  • Life insurance
  • Various discounts and perks
  • Health insurance for eligible U.S.-based positions
  • Paid sick leave for eligible U.S.-based positions

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