Thinking Machines Lab

Thinking Machines Lab

Model Designer

San Francisco

H1B sponsorship available$300k-$400kDetected 16 days ago
ExpressLLMsUX ResearchLogisticsResearchCommunication

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odds of building a lasting career here

59Sponsors, lottery-bound
Cap-exempt (no lottery)0
Sponsors this role80
Entry-level history0
PERM / green-card track0
Lottery odds (Level IV)94
Fits your clock70

Sponsors, but it's cap-subject — you still face the weighted lottery (~61% per draw at Level IV). Good if you win; have a cap-exempt backup on your list.

Lottery odds assume a STEM candidate.

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Employer immigration record

from this employer's Department of Labor filings

Files H-1B transfers

16 transfer filings in the last year, covering 16 workers. Median labor-condition decision: 7 days. An employer that already files transfers is one that can take over an existing H-1B.

Sourced from Department of Labor LCA, PERM and prevailing-wage disclosure data. Employer matching is by name, so figures may be split across an employer's legal entities. Absence of a filing means none appears in our copy of the data, not that none exists.

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About the role

  • As a Model Designer, you'll shape how our models behave and feel, and how people experience working with them.
  • You'll hold several things in tension: pushing what our models can do, anticipating what someone is reaching for before they've fully said it, and keeping the person's judgment at the center of the work.
  • pushing what our models can do, anticipating what someone is reaching for before they've fully said it, and keeping the person's judgment at the center of the work.

Responsibilities

  • Work closely with researchers to understand, predict, and shape model behavior, translating design judgment into training data, evaluations, and lasting changes in the models themselves.
  • Design how our models collaborate: when to take initiative, when to invite oversight or feedback, and how to earn the trust to act on someone's behalf over time.
  • Build strong, thoughtful defaults that people can reshape around their own knowledge, preferences, and values.
  • Partner with research, product, design, and engineering from the earliest questions and prototypes to develop interfaces that widen the channel between people and models, including live and multimodal interaction.
  • Find creative ways to collect high-quality data, especially the tacit, hard-to-articulate knowledge people build through doing real work.
  • Demonstrated ability to understand users whose needs and contexts differ from your own, through work across varied populations, domains, or cultures.

Requirements

  • Clear communication, including the ability to explain complex technical concepts in writing.
  • Several years of experience in a role focused on how people interact with technology, such as product design, UX research, content or conversation design, or model behavior work at an AI lab.

Nice to have

  • We encourage you to apply if you bring some of the following
  • we don't expect anyone to bring all of them.
  • Experience designing model behavior or personality, or influencing technical roadmaps in domains where quality depends on judgment and there is no single right answer.
  • Experience shaping how models approach research, exercise judgment, express uncertainty, or reflect a coherent set of values.
  • Hands-on experience with large language models, including writing and iterating on prompts, evaluating outputs, and building an intuition for why a model behaves the way it does.
  • A portfolio or writing samples that show exceptional taste, craft, and clarity, ideally including work that shaped how a product or system communicates with people.
  • A track record of taking ambiguous problems from framing to shipped results, working across research, product, and engineering.
  • Comfort with quantitative analysis: you can read evaluation results, find patterns in data, and explain findings to both technical and non-technical audiences.

Compensation

  • Depending on background, skills, and experience, the expected annual salary range for this position is $300,000-$400,000 USD.

Benefits

  • Thinking Machines offers generous health, dental, and vision benefits, unlimited PTO, paid parental leave, and relocation support as needed.

Company info

  • The mission of Thinking Machines is to build AI that extends human will and judgment.
  • We are training frontier models with Inkling, developing Tinker to let people make models their own, and crafting interfaces that broaden human-AI communication.

Visa & Work Authorization

  • We sponsor visas.
  • While we can't guarantee success for every candidate or role, if you're the right fit, we're committed to working through the visa process together.
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This listing is sourced directly from Thinking Machines Lab's careers page and normalized into a canonical job model.