Research Engineer, Data (India)
Quick Summary
About Cartesia Our 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.
Design and build large-scale datasets for model training, and run controlled modeling experiments to measure their impact on model performance and behavior.
Experience building or working with large multilingual datasets Experience with generative models (speech, text, or multimodal). Ability to help guide human annotation and evaluation across multiple languages.
Our 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.
About the Role
~1 min readTo build truly global AI, our models must be trained on data that reflects the world's diversity of languages and cultures. We are searching for a Research Engineer to own the quality and coverage of the data behind our models. You will be our in-house expert on global data, ensuring our models perform exceptionally well across dozens of languages. You have a keen eye for linguistic nuance, and a passion for building inclusive and representative datasets at scale.
Design and build large-scale datasets for model training, and run controlled modeling experiments to measure their impact on model performance and behavior.
Build evaluations of speech models, both via manual annotation and at scale with automated metrics.
Implement techniques for steering data generation to improve model intelligence through data and mitigate bias.
Build automated quality control systems to validate and filter generated data
Partner with product teams to ensure support for key languages and markets.
Experience building or working with large multilingual datasets
Experience with generative models (speech, text, or multimodal).
Ability to help guide human annotation and evaluation across multiple languages.
Strong applied ML background with a focus on data-centric approaches.
Excitement for building scalable systems that bridge research and production.
🏢 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.
What We Offer
~1 min readLocation & Eligibility
Listing Details
- Posted
- February 20, 2026
- First seen
- May 5, 2026
- Last seen
- May 8, 2026
Posting Health
- Days active
- 0
- Repost count
- 0
- Trust Level
- 23%
- Scored at
- May 6, 2026
Signal breakdown
Please let cartesia know you found this job on Jobera.
4 other jobs at cartesia
View all →Explore open roles at cartesia.
Similar Research Engineer jobs
View all →Browse Similar Jobs
Stay ahead of the market
Get the latest job openings, salary trends, and hiring insights delivered to your inbox every week.
No spam. Unsubscribe at any time.