Senior Member of Technical Staff, Synthetic Data

Appletreeatl; Quebec; On-site; CAD 250,000 - 535,000; Full time

Benefits offered by this job

Lunch stipend

Health benefits

Parental leave top-up

Learning stipend

6 weeks vacation

Home office stipend

Travel to other offices

Job summary

Cohere is a leading security-first enterprise AI company focused on foundation AI models and end-to-end products. We develop frontier models for enterprises building AI systems and aim to improve training throughput and model quality.

The Senior ML Engineer role focuses on synthetic data pipelines, data analysis, ablations, and model evaluation, bridging research and engineering to advance NLP capabilities. Remote-friendly with CET/ET hours and global offices.

Qualifications

• Strong software engineering with Python and data pipelines.
• Experience with data processing frameworks such as Spark/Beam, Pandas.
• Experience with LLMs in projects, open-source or personal.
• Familiarity with LLM inference frameworks like vLLM and TensorRT.
• Experience with large-scale datasets including web/code data and multilingual corpora.
• Bridge research and engineering to solve data challenges in AI model training.

Responsibilities

• Design and build scalable inference pipelines that run on large GPU clusters.
• Conduct data ablations to assess data quality and experiment with data mixtures to enhance model performance.
• Research and implement innovative synthetic data curation methods leveraging Cohere’s infrastructure.
• Collaborate with researchers and engineers to ensure data pipelines meet model demands.

Skills

Python

Data pipelines

LLMs

Large-scale data

Tools

Apache Spark

Apache Beam

Pandas

vLLM

TensorRT

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

Role Overview

As a Senior Machine Learning Engineer specializing in synthetic data, you will play a pivotal role in developing the synthetic data pipeline that is crucial to Cohere’s advanced language models. Your responsibilities will encompass the end-to-end management of synthetic data, including maintaining and optimizing the synthetic data pipeline, data analysis and generation, as well as conducting data ablations and model evaluation to gauge data quality. You will work with diverse web data and code data and transform them using generative models to improve token efficiency and model quality. By combining research and engineering, you will bridge the gap between raw data and cutting-edge AI models, directly contributing to improvements in critical training metrics like throughput and accelerator utilization. Your work will be essential to Cohere’s mission of delivering efficient and reliable language understanding and generation capabilities, driving innovation in natural language processing. If you are passionate about transforming data into the foundation of AI systems, this role offers a unique opportunity to make a meaningful impact. Note: We have offices in London, Toronto, New York and San Francisco, but we’re also remote-friendly! This team operates primarily between ET to CET time zones, so we’re seeking candidates in locations that align with these hours for effective collaboration.

Key Responsibilities

• Design and build scalable inference pipelines that run on large GPU clusters.
• Conduct data ablations to assess data quality and experiment with data mixtures to enhance model performance.
• Research and implement innovative synthetic data curation methods, leveraging Cohere’s infrastructure to drive advancements in natural language processing.
• Collaborate with cross-functional teams, including researchers and engineers, to ensure data pipelines meet the demands of cutting-edge language models.

Qualifications

• Strong software engineering skills, with proficiency in Python and experience building data pipelines.
• Familiarity with data processing frameworks such as Apache Spark, Apache Beam, Pandas, or similar tools.
• Experience working with LLMs through work projects, open-source contributions or personal experimentation.
• Familiarity with LLM inference frameworks such as vLLM and TensorRT.
• Experience working with large-scale datasets, including web data, code data, and multilingual corpora.
• A passion for bridging research and engineering to solve complex data-related challenges in AI model training.

Bonus: paper at top-tier venues (such as NeurIPS, ICML, ICLR, AIStats, MLSys, JMLR, AAAI, Nature, COLING, ACL, EMNLP).

Working Location

This role can be based remotely or from one of our office locations listed on the job description - there is no minimum in-office qualification requirement. We care most about hiring exceptional people regardless of locations, though please check the location listed on the posting for guidance around the core time zone or working hours alignment expected for the role.

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.

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.

Compensation Range: CA$250K - CA$535K