Cohere

Cohere

Posted via Ashby

Member of Technical Staff, Data Analysis and Evaluation

Posted Aug 5, 2026

Role at a glance

Salary
Not Disclosed
Location
London San Francisco
Work arrangement
Remote
Employment
Full-time

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Role Summary

AI-generated

As a Member of Technical Staff in Data Analysis and Evaluation, this role focuses on the quality, reliability, and performance of Cohere’s large language models. The role works with researchers, engineers, and data annotators to improve dataset quality, model robustness, and the effectiveness of Cohere’s AI systems.

What You'll Do

  • Design and oversee data collection tasks, including supporting human annotators and ensuring data quality.
  • Develop and apply statistical methods to evaluate the quality and reliability of datasets.
  • Analyse and assess the generalisability and robustness of ML systems across diverse use cases.
  • Collaborate with teams to improve dataset quality and model performance.
  • Train and fine-tune large language models (LLMs) on distributed training infrastructures.
  • Conduct experiments to evaluate model performance and identify areas for improvement.

Generated from the employer's posting. Verify important details before applying.

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Qualifications

Extremely strong software engineering skills; expertise in designing and conducting data collection tasks with human annotators; strong statistical skills and experience evaluating scientific experiments; experience analysing dataset quality, biases, and suitability for training ML models; hands-on experience training LLMs on distributed training infrastructures; familiarity with evaluating and improving ML system generalisability and robustness; proficiency in Python and ML frameworks such as PyTorch, TensorFlow, or JAX; excellent communication skills.

Required

  • Extremely strong software engineering skills
  • Strong expertise in designing and conducting data collection tasks, including working with human annotators
  • Strong statistical skills and experience evaluating scientific experiments related to data collection and model performance
  • Experience analysing datasets with respect to their quality, biases, and suitability for training ML models
  • Hands-on experience training large language models (LLMs) on distributed training infrastructures
  • Familiarity with evaluating and improving the generalisability and robustness of ML systems
  • Proficiency in programming languages such as Python and ML frameworks (e.g., PyTorch, TensorFlow, JAX)
  • Excellent communication skills to collaborate effectively with cross-functional teams and present findings

Preferred

  • One or more papers at top-tier venues (such as NeurIPS, ICML, ICLR, AIStats, MLSys, JMLR, AAAI, Nature, COLING, ACL, EMNLP)

Original job description

Content provided by the employer

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 headquartered in Toronto with key offices in London, New York City, San Francisco, Montreal, Paris, Berlin and Seoul. Join us!

Why this role?

As a Member of Technical Staff in Data Analysis and Evaluation, you will play a pivotal role in ensuring the quality, reliability, and performance of our large language models (LLMs). Your primary focus will be on designing and conducting data collection tasks, assessing and evaluating dataset quality, and analysing the robustness and generalisability of our models. You will work closely with cross-functional teams, including researchers, engineers, and data annotators, to conduct data-driven decision-making and improve the overall effectiveness of our AI systems.

This role combines expertise in statistics, experimental design incl. human annotators, and machine learning to ensure that our models are trained on high-quality data and perform reliably across diverse scenarios. You will contribute to Cohere’s mission of advancing AI by ensuring our systems are robust, scalable, and impactful.

Please Note: We have offices in London, Paris, Toronto, San Francisco, and New York, but we also embrace being remote-friendly! There are no restrictions on where you can be located for this role.

As a Member of Technical Staff for Data Analysis and Evaluation you will:

  • Design and oversee data collection tasks, including supporting human annotators and ensuring data quality.

  • Develop and apply statistical methods to evaluate the quality and reliability of datasets.

  • Analyse and assess the generalisability and robustness of ML systems across diverse use cases.

  • Collaborate with teams to improve dataset quality and model performance.

  • Train and fine-tune large language models (LLMs) on distributed training infrastructures.

  • Conduct experiments to evaluate model performance and identify areas for improvement.

You may be a good fit if you have:

  • Extremely strong software engineering skills.

  • Strong expertise in designing and conducting data collection tasks, including working with human annotators.

  • Strong statistical skills and experience evaluating scientific experiments related to data collection and model performance.

  • Experience analysing datasets with respect to their quality, biases, and suitability for training ML models.

  • Hands-on experience training large language models (LLMs) on distributed training infrastructures.

  • Familiarity with evaluating and improving the generalisability and robustness of ML systems.

  • Proficiency in programming languages such as Python and ML frameworks (e.g., PyTorch, TensorFlow, JAX).

  • Excellent communication skills to collaborate effectively with cross-functional teams and present findings.

  • One or more papers at top-tier venues (such as NeurIPS, ICML, ICLR, AIStats, MLSys, JMLR, AAAI, Nature, COLING, ACL, EMNLP).

* This is neither an exhaustive nor necessary set of attributes. Even if none of these apply to you, but you believe you will contribute to Cohere, please reach out. We value diverse backgrounds and perspectives at Cohere.

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, but we also have offices in Toronto, London, New York City, San Francisco, Montreal, Paris, Berlin and Seoul with more opening 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 an 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.

Beware of Scams: Cohere will never ask for payment or third-party services (e.g., CV writing) as part of our hiring process. All legitimate roles are listed on the Cohere careers page and LinkedIn only, with all communications from Cohere employees coming from an @cohere.com or @cw.cohere email alias. If jobs are viewed on other sites then please verify these through our official careers page.

Cohere

About the company

Cohere

Startup

Cohere is a cutting-edge technology company specializing in natural language processing and artificial intelligence solutions. Founded with the mission to empower businesses with advanced language understanding capabilities, Cohere's platform enables organizations to harness the power of language data for improved decision-making and enhanced customer engagement. With a commitment to innovation and a strong focus on research and development, Cohere is at the forefront of AI-driven solutions that streamline communication and drive operational efficiency across various industries.