Researcher, Evals

Evaluations Lead

The New Horizons Evaluations team is reimagining how we measure progress in interactive machine intelligence. As Evaluations Lead, you will design evaluation frameworks that capture not just what models know — but how they reason, remember, and interact over time. You'll work at the intersection of research, product, and infrastructure to develop metrics, systems, and studies that define what "intelligence" means in the next generation of AI.

This role is ideal for someone who combines scientific rigor with technical execution, and who's deeply curious about how people use — and want to use — intelligent systems. Your work will shape how Cartesia builds and evaluates frontier models, ensuring that progress isn't measured solely by static benchmarks, but by deeper qualities like understanding, naturalness, and adaptability in real-world interaction.

• Identify and define key model capabilities and behaviors that matter for next-generation model evals

• Develop and implement new evaluation pipelines with robust statistical analysis and clear reporting

• Partner closely with model training and research teams to embed evaluation systems directly into model development loops

• Prototype new user studies and behavioral experiments to ground evaluations in real-world use.

• Experience designing or implementing evaluation frameworks for generative models (audio, text, or multimodal)

• Strong technical and analytical skills, ability to take open-ended research ideas and translate them into production-ready systems

• Creativity in defining novel quantitative metrics for subjective or behavioral qualities

• Excitement for building evaluation systems that bridge research and real-world use

• Curiosity and rigor in equal measure; motivation driven by discovering how to measure meaningful progress in intelligent behavior

• Understanding of model alignment concepts and evaluation approaches

Note:

Cartesia participates in E-Verify and will provide the federal government with Form I-9 information to confirm employment eligibility after hire.

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 Commitment to Equal Opportunity:
Cartesia is an equal opportunity employer. We consider qualified applicants without regard to race, color, religion, sex, national origin, age, disability, veteran status, genetic information, or any other legally protected status.