Senior Research Engineer, Model Evaluation

cohere; New York (NY); Hybrid; USD 150,000 - 210,000; Full time

Benefits offered by this job

A weekly lunch stipend of $75/£75 or?e

Full health and dental benefits

RRSP matching, 401K, Pension Scheme

100% Parental Leave top‑up

Annual enrichment benefits and cowork/

Job summary

Cohere is seeking a Senior Research Engineer, Model Evaluation, to create next‑generation evaluation methods and scalable infrastructure. You will develop benchmarks, datasets, and environments to measure frontier model capabilities, and you will push the state‑of‑the‑art in LLM evaluation methods while building tools used across technical staff and leadership.

You will collaborate with leading researchers and engineers, focusing on improving evaluation efficiency and scalable dataset

Qualifications

• You enjoy pushing the limits of LLM evaluation and have built high‑quality evaluation resources (datasets, simulators, environments).
• You have a track record of developing new methods or data to evaluate LLMs, e.g. publications or benchmarks.
• You have deep experience building with and around LLMs and you’ve built tools to analyze performance.

Responsibilities

• Develop evaluation benchmarks, datasets, and environments for measuring cutting‑edge model capabilities.
• Conduct research to advance LLM evaluation methods, including training LLM judges and efficient evaluation.
• Build scalable tools to investigate and understand evaluation results for the org and leadership.
• Collaborate with top researchers and engineers to push state‑of‑the‑art in evaluation.

Skills

LLM evaluation

Research engineering

Software engineering

Publications / benchmarks

Tools

Python

PyTorch / TensorFlow

Datasets & evaluation tooling

Job description

Who are we?

Cohere is the leading security-first enterprise AI company. We build cutting‑edge foundation AI models and end‑to‑end products that are designed to solve real-world business problems.

We’re training and deploying frontier models for enterprises who are building AI systems. We believe that our work is instrumental to the widespread adoption of AI and we are looking for folks that want to be part of that.

We obsess over what we build. Each one of us is responsible for contributing to increasing the capabilities of our models and the value they drive for our customers. Cohere is a team of researchers, engineers, designers, and more, who are all passionate about their craft.

We are a global technology company co‑headquartered in Toronto and San Francisco, with key offices in London, New York City, Montreal, Seoul, Germany and Paris. Join us!

Why this role?

Evaluation is critical to making progress in scaling intelligence. As models continue to become superhuman in many real‑world use cases, we must continue to develop new techniques to accurately measure our models' performance on frontier capabilities. In this role, you are responsible for creating next‑generation evaluation methods and scalable infrastructure to measure LLM progress.

As a Senior Research Engineer, Model Evaluation, you will:

• Develop evaluation benchmarks, datasets, and environments for measuring the bleeding edge of model capabilities
• Conduct research to push the state‑of‑the‑art in LLM evaluation methods, including training LLM judges; improving evaluation efficiency; and scalably building high‑quality datasets
• Build scalable tools for investigating and understanding evaluation results that are used by all members of technical staff at Cohere, as well as leadership and our CEO
• Learn from and work with the best researchers and engineers in the field

You may be a good fit if:

• You enjoy pushing the limits of what LLMs are capable of, and you have built high‑quality evaluation resources to measure those capabilities (datasets, simulators, environments, etc.)
• You have a track record of developing new methods and/or data to evaluate LLMs, e.g. publications at top‑tier conferences, popular benchmarks, etc.
• You have deep experience building with and around LLMs, and you have built tools for analyzing and understanding their performance
• You have strong software engineering skills

Full‑Time Employees at Cohere enjoy these Perks:

• A weekly lunch stipend of $75/£75 or equivalent in your local currency for lunch.
• Full health and dental benefits, including a separate budget for mental health.
• RRSP matching, 401K, Pension Scheme.
• 100% Parental Leave top‑up for up to 6 months, for either parent.
• Annual enrichment benefits: Arts & culture, fitness/wellness, quality time, and a workspace improvement credit. Education & learning stipend for conferences, courses, and coaching.
• 6 weeks of paid vacation (30 working days!)
• Budget for traveling to other offices if you are remote, plus an annual company offsite.

How and Where We Work:

• Cohere is remote‑friendly. We have offices in Toronto, San Francisco, New York City, London, Paris, Montreal, and more coming soon.
• For those in the office: a daily lunch program, plenty of snacks, and regular community and social events.
• For those not near an office: a co‑working benefit so you can work alongside others in your city.
• Everyone receives a $500 home office stipend to set up your workspace properly.

If any of the above doesn’t line up exactly with your experience, we still encourage you to apply.

We strive to create an inclusive work environment for all; we welcome applicants from all backgrounds and are committed to providing equal opportunities. Should you require any accommodations during the recruitment process, please submit Accommodations Request Form, and we will work together to meet your needs.

We may use AI‑enabled tools to screen and assess applicants against the criteria for this position. This helps our recruiters identify potentially qualified candidates, but it doesn't limit the applications our recruiters may review or consider.