Human Data Operations Manager

About CartesiaOur mission is to architect AI that learns from and interacts with the world like humans do.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.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.The RoleWe are looking for a Human Data Operations Manager to design, scale, and operate Cartesia's global scaled evaluation workforce. This role sits at the intersection of product operations, data operations, and vendor management, and directly impacts model quality and customer outcomes. You will own the end-to-end workforce system: hiring pipelines, vendor strategy, workforce planning, quality control, and operational performance.You are building a production system of humans-in-the-loop for AI, translating ambiguous product needs into operational workflows and partnering across product, engineering, data, and customer-facing teams to support real-world evaluation at scale.Your ImpactDesign and implement workforce structure across languages, skill tiers, and use cases, including evaluators, auditors, and leads for TTS productsBuild capacity models to support continuous eval pipelines and data production workflowsOwn relationships with vendors such as data annotation firms and contractor platforms, negotiating rate cards, SLAs, and throughput guaranteesDecide on build, buy, or hybrid workforce models and continuously benchmark cost and performance across regionsDesign multi-layer QA systems spanning self-checks, peer review, audits, and gold tasksDefine and track inter-rater reliability, error rates by category, and annotator-level performance distributionsBuild escalation and retraining workflows to maintain quality at scaleRun day-to-day operations including task allocation, throughput tracking, and SLA adherenceBuild systems to reduce evaluator fatigue, rotate task types, and maintain consistency across large-scale evaluationsPartner with tooling teams to improve evaluator UX and with data teams to ensure clean, structured outputs for model trainingWhat You Bring5+ years in operations, workforce management, or data annotation systemsExperience managing large contractor or vendor-based workforcesProven ability to scale operations from zero to productionSystems thinking with the ability to design scalable operational frameworksStrong analytical skills with comfort around metrics like inter-rater reliability, precision, and throughputAbility to execute quickly under ambiguity with close attention to quality and edge casesNice to HaveExperience in AI/ML data operations or evaluation pipelinesBackground in audio, speech, or language-related workflowsFamiliarity with QA systems and annotation toolingExperience with marketplace platforms such as Upwork or MercorExposure to multilingual operationsMore Details🏢 In-office policy: We’re an in-person team based out of offices in 🇺🇸 San Francisco, 🇬🇧 London and 🇮🇳 Bangalore We love being in the office, hanging out together, and learning from each other every day.🌎 Visa sponsorship: We provide visa sponsorship support and assess each circumstance on a case-by-case basis. However, visa sponsorship is dependent on many factors, including the role you are applying for, and the location you are going to be based, and so we can't always guarantee success. Your Recruiter will work with you to understand your visa sponsorship needs from the first call.🚢 We ship fast. All of our work is novel and cutting edge, and execution speed is paramount. We have a high bar, and we don’t sacrifice quality or design along the way.🤝 We support each other. We have an open & inclusive culture that’s focused on giving everyone the resources they need to succeed.Our Benefits💰 Compensation. Competitive base salary alongside attractive equity package.🚆 Commuter Allowance. A monthly stipend to help you get to and from the office.🏖️ Flexible PTO. Take as much time as you need to recharge your batteries.🍲 Meals & Snacks. Lunch, dinner and plenty of snacks, provided daily.🦖 Your own personal Yoshi.