JobStash

1 day ago Salary: 210K - 285K San Francisco Office Onsite Full Time Fullstack Jobs by TypeSafe AI
TypeSafe AI Visit TypeSafe AI website
TypeSafe AI is an AI lab building machine-native intelligence infrastructure for software automation. Its flagship System One model, Jev, provides typed decisions, probabilities, and confidence scores through an API and SDKs for developers building automated workflows.
TypeSafe AI on X (Twitter) TypeSafe AI on Discord TypeSafe AI on GitHub TypeSafe AI on Documentation
svg]:pointer-events-none [&amp;&gt;svg]:size-3 border-transparent bg-secondary text-secondary-foreground [a&amp;]:hover:bg-secondary/90"&gt;0 current maintainerssvg]:pointer-events-none [&amp;&gt;svg]:size-3 border-transparent bg-secondary text-secondary-foreground [a&amp;]:hover:bg-secondary/90"&gt;0 active leadssvg]:pointer-events-none [&amp;&gt;svg]:size-3 text-foreground [a&amp;]:hover:bg-accent [a&amp;]:hover:text-accent-foreground" href="<a href="https://ecosystem.vision/organizations/info/typesafe-ai~99011425/team%22%3ETeam" rel="nofollow noopener" target="_blank">https://ecosystem.vision/organizations/info/typesafe-ai~99011425/team"&gt;Team</a> intelligence
Maintainer signals as of 9/25/2026
San Francisco, USA
Projects
Jevsvg]:pointer-events-none [&amp;&gt;svg]:size-3 border-transparent bg-secondary text-secondary-foreground [a&amp;]:hover:bg-secondary/90 ml-auto shrink-0 text-[10px]"&gt;Uncategorized
About TypeSafe AI
TypeSafe AI develops System One models for fast, structured decisions that software can consume directly rather than generated text. Its flagship model, Jev, evaluates supplied state against typed Choice, Score, and Noul questions, returning constrained results, probabilities, and confidence values. The company provides an API, Python and JavaScript SDKs, developer documentation, a console playground, and tools intended for developers building reliable automated software workflows.
svg]:px-3 w-full" data-slot="button" data-variant="secondary" data-size="default" href="/o-typesafe-ai~99011425"&gt;View jobs by TypeSafe AI
Skills
Data ScienceDatasetEvaluationFull-Stack EngineeringKubernetesLlmNext.JsPythonTailwind CssTypescriptUser Interface
Candidate Availability
svg]:pointer-events-none [&amp;&gt;svg]:size-3 [a&amp;]:hover:bg-accent [a&amp;]:hover:text-accent-foreground border-sky-500/20 bg-sky-500/5 text-sky-200 transition-colors cursor-pointer hover:border-sky-400/50 hover:bg-sky-500/15 focus-visible:border-sky-400/50" title="San Francisco Office"&gt;Onsite
<ul>
<li>San Francisco</li>
<li>Required</li>
</ul>
Required and preferred rules are kept separate and reflect the wording in the original posting.
About The Role
You will build datasets, internal data-tooling, and evaluation interfaces that support model development. You will own evaluation frameworks, analyze model behavior, turn data and model outputs into inspectable user interfaces, and translate product and customer needs into system improvements.
Requirements
<ul>
<li>Full-stack engineering fundamentals</li>
<li>Coding</li>
<li>Product intuition</li>
<li>LLM implementation</li>
<li>Knowledge of LLM capabilities and limitations</li>
</ul>
Responsibilities
<ul>
<li>Create datasets, products, and user interfaces that unlock model capabilities and use cases</li>
<li>Build internal data-tooling and evaluation interfaces for evaluation, debugging, and data inspection</li>
<li>Develop and own evaluation frameworks for model quality, reliability, and emergent characteristics</li>
<li>Run analyses and experiments on the effects of data, training choices, and interventions on model behavior</li>
<li>Turn model outputs and data into clear, inspectable user interfaces</li>
<li>Partner with product managers and customers to translate needs into model and system improvements</li>
<li>Iterate on techniques for building trustworthy AI products</li>
</ul>
Benefits
<ul>
<li>Equity</li>
<li>100% covered health insurance</li>
<li>Daily lunch and dinner</li>
<li>Visa sponsorship</li>
<li>401K plans</li>
</ul>

Member of Technical Staff Full Stack Front End

Member of Technical Staff Full Stack Front End

This job is no longer available

Talents

Recruiters

About