Language Lead - Japanese (Contract)

<h1><strong>About Cartesia</strong></h1><p style="min-height:1.5em">Our mission is to architect AI that learns from and interacts with the world like humans do.</p><p style="min-height:1.5em">We're pioneering the model architectures that will make this possible. Our founding team met as PhDs at the Stanford AI Lab, where we invented State Space Models or SSMs, a new primitive for training efficient, large-scale foundation models. Our team combines deep expertise in model innovation and systems engineering paired with a design-minded product engineering team to build and ship cutting edge models and experiences.</p><p style="min-height:1.5em">We're funded by leading investors at Index Ventures and Lightspeed Venture Partners, along with Factory, Conviction, A Star, General Catalyst, SV Angel, Databricks and others. We're fortunate to have the support of many amazing advisors, and 90+ angels across many industries, including the world's foremost experts in AI.</p><p style="min-height:1.5em"></p><h2><strong>Overview</strong></h2><p style="min-height:1.5em">We are seeking native-level Japanese speakers with a linguistics background to serve as the primary language resource for voice AI in their language. You will be the trusted point of contact for all questions, quality decisions, and language-specific work related to Japanese.</p><p style="min-height:1.5em">This is not a standard annotation engagement. You will own your language end to end, which includes managing annotation quality, auditing data, monitoring product performance, investigating customer-reported issues, and executing projects that require deep linguistic expertise and attention to detail. You will operate independently across these workstreams and serve as the team's go-to resource for anything related to your language.</p><p style="min-height:1.5em">This is an ongoing contractor engagement. Availability during some US Pacific business hours is preferred to allow for team syncs and real-time support.</p><div style="min-height:1.2em;margin-top:0;margin-bottom:0"> </div><h2><strong>About the Engagement</strong></h2><p style="min-height:1.5em">You will coordinate with the Human Evals Manager on project deliverables and timelines. Some examples of what your day-to-day work may include:</p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Answer questions from annotators about guidelines, edge cases, or language-specific issues via an agreed project communication channel.</p></li><li><p style="min-height:1.5em">Cascade new feedback, instructions, or rubric updates to annotators workin...

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