Senior Applied Scientist – Legal Tech

TRSSToronto, ON, Canada

15 days ago

Job description

Senior Applied Scientist – Legal Tech

Are you passionate about developing AI systems that transform the way professionals work? Join Thomson Reuters Labs, where we experiment, build, and deliver cutting-edge solutions in machine learning, natural language processing (NLP), and generative AI.

Our flagship AI assistant, CoCounsel, is designed to streamline complex workflows for legal, tax, and business professionals. We’re seeking innovators to help expand its capabilities and impact. At Thomson Reuters Labs, we combine rigorous research with applied development to solve real-world challenges. From enhancing large language model (LLM) reasoning to creating new skills for task-specific applications, we drive impactful solutions for professionals worldwide.

About the Role

As a Senior Applied Scientist, you will :

Innovate : Develop new skills and capabilities for CoCounsel, focusing on areas such as document summarization, legal research, contract analysis, and reasoning improvement. Lead research initiatives in LLM benchmarking, grounding, LLM agents, and enhancing the reasoning abilities of large language models.
Build & Experiment : Design, test, and deploy state-of-the-art models that expand CoCounsel’s ability to address complex, real-world tasks.
Collaborate : Partner with engineering teams, product managers, and stakeholders to translate complex challenges into impactful solutions.
Monitor & Lead : Guide and support junior researchers, fostering a culture of learning, creativity, and collaboration.
Communicate : Publish findings at top-tier conferences (e.g., NeurIPS, ACL, EMNLP, SIGIR) and contribute to patents, ensuring our solutions are cutting-edge and competitive.
Drive the development of AI models to expand CoCounsel’s task-specific capabilities and overall performance.
Enhance CoCounsel’s reasoning, grounding, and responsiveness, ensuring it meets the needs of professional users.
Conduct experiments to evaluate AI performance, focusing on reliability, ethical considerations, and user alignment.
Work with engineering teams to deploy scalable, production-ready models and co-design ML Ops processes for monitoring and retraining.

About You

Required Qualifications :

PhD in Computer Science, AI, or a related field, or Master’s with equivalent research / industry experience.

5+ years of hands-on experience building and deploying machine learning models in NLP or IR applications.

Expertise in LLMs, including alignment, reasoning enhancement, and grounding techniques.

Strong programming skills (e.g., Python) and experience with modern ML frameworks (e.g., PyTorch, TensorFlow).

Proven ability to translate complex problems into innovative AI applications.

Preferred Qualifications :

Experience developing and deploying AI assistants or task-specific skills in production environments.

Familiarity with cloud platforms (AWS, Azure, or Google Cloud) and distributed machine learning systems.

Knowledge of retrieval-augmented generation, synthetic data creation, and efficient fine-tuning methods.

Publications in top-tier ML or NLP conferences.

Do you want to be part of a team helping re-invent the way knowledge professionals work? How about a team that works every day to create a more transparent, just and inclusive future? At Thomson Reuters, we’ve been doing just that for almost 160 years. Our industry-leading products and services include highly specialized information-enabled software and tools for legal, tax, accounting and compliance professionals combined with the world’s most global news services – Reuters. We help these professionals do their jobs better, creating more time for them to focus on the things that matter most : advising, advocating, negotiating, governing and informing.

We are powered by the talents of 26,000 employees across more than 70 countries, where everyone has a chance to contribute and grow professionally in flexible work environments that celebrate diversity and inclusion. At a time when objectivity, accuracy, fairness and transparency are under attack, we consider it our duty to pursue them. Sound exciting? Join us and help shape the industries that move society forward.

Accessibility

As a global business, we rely on diversity of culture and thought to deliver on our goals. To ensure we can do that, we seek talented, qualified employees in all our operations around the world regardless of race, color, sex / gender, including pregnancy, gender identity and expression, national origin, religion, sexual orientation, disability, age, marital status, citizen status, veteran status, or any other protected classification under applicable law. Thomson Reuters is proud to be an Equal Employment Opportunity / Affirmative Action Employer providing a drug-free workplace.

We also make reasonable accommodations for qualified individuals with disabilities and for sincerely held religious beliefs in accordance with applicable law.

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