Member of Technical Staff Full Stack Front End

21 hours 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 [&>svg]:size-3 border-transparent bg-secondary text-secondary-foreground [a&]:hover:bg-secondary/90">0 current maintainerssvg]:pointer-events-none [&>svg]:size-3 border-transparent bg-secondary text-secondary-foreground [a&]:hover:bg-secondary/90">0 active leadssvg]:pointer-events-none [&>svg]:size-3 text-foreground [a&]:hover:bg-accent [a&]:hover:text-accent-foreground" href="https://ecosystem.vision/organizations/info/typesafe-ai~99011425/team">Team intelligence Maintainer signals as of 9/25/2026 San Francisco, USA Projects Jevsvg]:pointer-events-none [&>svg]:size-3 border-transparent bg-secondary text-secondary-foreground [a&]:hover:bg-secondary/90 ml-auto shrink-0 text-[10px]">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">View jobs by TypeSafe AI Skills Data ScienceDatasetEvaluationFull-Stack EngineeringKubernetesLlmNext.JsPythonTailwind CssTypescriptUser Interface Candidate Availability svg]:pointer-events-none [&>svg]:size-3 [a&]:hover:bg-accent [a&]: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">Onsite San Francisco Required 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 Full-stack engineering fundamentalsCodingProduct intuitionLLM implementationKnowledge of LLM capabilities and limitations Responsibilities Create datasets, products, and user interfaces that unlock model capabilities and use casesBuild internal data-tooling and evaluation interfaces for evaluation, debugging, and data inspectionDevelop and own evaluation frameworks for model quality, reliability, and emergent characteristicsRun analyses and experiments on the effects of data, training choices, and interventions on model behaviorTurn model outputs and data into clear, inspectable user interfacesPartner with product managers and customers to translate needs into model and system improvementsIterate on techniques for building trustworthy AI products Benefits Equity100% covered health insuranceDaily lunch and dinnerVisa sponsorship401K plans