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Thinking Machines Lab

Researches AI and builds tools to customize models

People Operations Generalist

HR Operations & Coordination +1Confirmed live in the last 24 hours
Full-timeSan Francisco, CA, USAIn-person

About the Job

Requirements

  • Demonstrated experience in HR operations, people operations, or a related field.
  • Strong knowledge of employment compliance, including I-9 requirements, state and federal regulations, and recordkeeping best practices.
  • Experience supporting immigration processes in coordination with outside counsel.
  • Hands-on experience with HRIS platforms such as Rippling, Workday, or SequoiaOne, and comfort evaluating new tools.
  • Meticulous attention to detail and an instinct for designing systems that fail gracefully and surface issues early.
  • Ability to operate with ambiguity and make principled tradeoffs in fast-moving environments.
  • Clear, concise written communication skills, including the ability to make complex policies accessible.
  • Sound judgment and discretion when handling sensitive employee information and complex situations.

Responsibilities

  • Own the onboarding experience end-to-end, from offer acceptance through completion of new hire training.
  • Manage I-9 verification, employee eligibility documentation, background checks, and compliance training; monitor federal and state employment law obligations as headcount grows; and build systems that make compliance straightforward for hiring managers and employees.
  • Own immigration case management in coordination with outside counsel across visa types including H-1B, O-1A, EB-1A, PERM, CPT/OPT, and others, including RFE response management and policy monitoring; support international hiring and employer-of-record arrangements for employees outside the United States.
  • Help design and manage onboarding curricula, manager training, and executive and team coaching engagements, including sourcing coaches, coordinating workshops, and measuring impact; build playbooks and feedback loops to improve these programs over time.
  • Evaluate, implement, and maintain HRIS, payroll, and adjacent systems, including leading migrations between platforms; balance vendor capabilities, integration requirements, and flexibility as needs change.
  • Administer benefits enrollment, answer employee questions, and coordinate with brokers and vendors during renewals; help employees understand and maximize their benefits, including health, fertility, mental health, retirement, and workers’ compensation.
  • Build playbooks, decision trees, and self-service resources to help employees find answers independently and maintain consistency as the organization grows; maintain dashboards and trackers across onboarding, immigration, and program health to provide leadership visibility.
  • Partner with finance, legal, IT, and hiring managers to ensure people operations supports company velocity while maintaining quality and compliance.
  • Build the infrastructure, operations, and team needed to help the organization scale.

Desired Qualifications

  • Experience at a high-growth technology or AI company.
  • Background in benefits administration or total rewards.
  • Familiarity with leave management, workers’ compensation, or other compliance-heavy HR domains.
  • Experience building onboarding programs or improving employee experience touchpoints.
  • Experience with international employment, including employer-of-record arrangements or cross-border hiring.

About the Company

Thinking Machines Lab

Researches AI and builds tools to customize models

Thinking Machines Lab researches and builds AI systems, aiming to make AI more widely understood, customizable, and capable. It publishes much of its research openly on its Connectionism blog, starting with work on making AI models give consistent answers to the same question. Its first product, Tinker, lets researchers and developers fine-tune open-weight AI models on their own data while Thinking Machines runs the computing clusters behind it, so customers focus on their data and training methods instead of managing hardware and pay for the computing they use. Former OpenAI chief technology officer Mira Murati founded the lab in 2025, and it is based in San Francisco.

Company size
201-500
Company stage
Series A
Total funding
$7B
Headquarters
San Francisco, CA
Founded
2024

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