Research Scientist Intern

Thomson Reuters•Toronto, ON

About The Position

Thomson Reuters Labs is seeking a machine learning scientist intern to conduct foundational research on machine learning systems that power its products. The Labs team applies research and development to create products and technologies across Legal, Tax & Accounting, Government, and Reuters News, while also investing in long-term research. The intern will research and design a novel method, framework, or evaluation for search, deep research, or document drafting, building on state-of-the-art machine learning literature. They will test their ideas with internal and public data, assess the generality and practicality of their approach, and may publish their research. At the end of the internship, they will share experimental findings and recommendations for applying their work within internal systems.

Requirements

Currently enrolled in a PhD program in a relevant discipline and have research experience.
Published research in top conferences such as ACL, NAACL, EMNIGIR, ECIR, AAAI, or related venues.
Expertise in Information Retrieval and Natural Language Processing, including training and evaluating language models and building AI agents.
Knowledge of the scientific method and strong statistical skills for designing and evaluating machine learning experiments.
Experience with one or more programming languages, preferably Python, and experience working in the cloud, such as AWS or Azure.
Experience with ML/NLP libraries such as PyTorch, TensorFlow, and Hugging Face.
Comfort using AI coding agents such as Claude Code or Codex.
Experience with unstructured datasets and knowledge of data-cleaning and processing techniques.
Good communication and writing skills, and ability to work collaboratively as part of a team.
Experience using AI as an assistant without outsourcing critical thinking.

Responsibilities

Research and design a novel method, framework, or evaluation for search, deep research, or document drafting, building on machine learning research.
Run experiments using internal and public data to validate the generality and practicality of the approach.
Have the opportunity to publish research and influence applied science work within Thomson Reuters Labs.
Share experimental findings and recommendations for using the work within internal systems at the end of the internship.

Benefits

Flexible work arrangements, including work from anywhere for up to 8 weeks per year.
Flexible vacation and paid time off, including two company-wide Mental Health Days and paid holidays.
Access to the Headspace app and resources for mental, physical, and financial wellbeing.
Retirement savings plan and 401(k) plan with company match.
Tuition reimbursement.
Employee incentive programs.
Two paid volunteer days annually and opportunities for pro-bono consulting and ESG initiatives.
Health, dental, vision, disability, and life insurance programs.
Parental leave and sabbatical leave.
Flexible Spending and Health Savings Accounts.
Fitness reimbursement and Employee Assistance Program.
Optional hospital, accident and sickness insurance; optional life and AD&D insurance.
Group Legal Identity Theft Protection benefit.
Access to a 529 Plan and commuter benefits.
Adoption and surrogacy assistance.
Employee Stock Purchase Plan.