Senior Applied Scientist, Document Understanding

Senior Applied Scientist, Document Understanding About the Role This is an

applied science position focused on designing, building, and deploying

production-grade document understanding systems that power Westlaw,

PracticalLaw, and CoCounsel. You will work across semantic chunking, document

enrichment, and knowledge graph construction for complex legal, tax, and

accounting content — delivering foundational intelligence that multiple product

teams depend on at scale. About You You hold a PhD or Master's in Computer

Science, AI, NLP, or a related field, with 5+ years of post-degree industry

experience shipping document understanding, information extraction, or knowledge

graph systems into production. You have hands-on depth across model development,

distillation, evaluation, and deployment. You work independently, lead through

influence in an applied research setting, and measure success by what ships and

performs in production.

What You'll Do

• Design and deploy semantic chunking
• models for lengthy, non-uniformly structured legal documents with adjustable
• granularity across use cases Build document enrichment systems that classify
• documents according to legal and customer-defined taxonomies and extract rich
• metadata Develop LLM-based knowledge graph construction pipelines that extract
• and link citations, entities, and legal concepts across diverse legal content
• Build scalable synthetic data generation systems for model training, multi-hop
• query simulation, and hallucination-free answer generation Apply knowledge
• distillation techniques to compress large models into latency-constrained,
• production-ready SLMs Design evaluation frameworks — component-level and
• end-to-end — using expert annotation and synthetic data Drive independent
• technical decisions on chunking strategy, classification approach, knowledge
• extraction methods, and multi-document reasoning architecture Partner with
• engineering on delivery, reliability, and scale across multiple product lines
• Contribute to published research at venues such as ACL, EMNLP, ICLR, NeurIPS,
• SIGIR, and KDD, and to intellectual property Required Qualifications PhD or
• Master's in Computer Science, AI, NLP, or a related field 5+ years of
• post-degree industry experience shipping document understanding, information
• extraction, or knowledge graph systems into production — not research-only
• experience Publications at ACL, EMNLP, ICLR, NeurIPS, SIGIR, KDD, or equivalent
• Experience leading through influence in an applied research setting Production
• Python and experience with PyTorch, Hugging Face Transformers, and DeepSpeed
• Hands-on production depth required in: Document layout analysis and semantic
• chunking beyond fixed-size or paragraph-based methods Hierarchical, multi-label
• document classification with domain-specific and customer-defined schemas Entity
• recognition and linking, relation extraction, citation parsing, and knowledge
• graph construction from unstructured text LLM-based information extraction,
• few-shot and multi-task learning, and post-training Knowledge distillation,
• model compression, and SLM deployment under latency constraints Synthetic data
• generation for NLP: query-answer generation with verification and scalable data
• augmentation Annotation workflow design and evaluation framework development for
• document understanding tasks Preferred Qualifications Legal document
• understanding, legal information extraction, or legal AI applications Complex
• document structures common in legal content: nested hierarchies,
• cross-references, non-uniform formatting, and embedded elements Retrieval, QA,
• or analysis systems over large document collections Knowledge graph frameworks
• for legal or enterprise applications RAG and agentic workflows for enterprise
• knowledge systems AzureML or AWS SageMaker #LI-LP2 New Position: This position
• is open due to an existing vacancy to support our evolving business needs.
• What’s in it For You? Flexibility & Work-Life Balance: Flex My Way is a set of
• supportive workplace policies designed to help manage personal and professional
• responsibilities, whether caring for family, giving back to the community, or
• finding time to refresh and reset. This builds upon our flexible work
• arrangements, including work from anywhere for up to 8 weeks per year,
• empowering employees to achieve a better work-life balance. Career Development
• and Growth: By fostering a culture of continuous learning and skill development,
• we prepare our talent to tackle tomorrow’s challenges and deliver real-world
• solutions. Our Grow My Way programming and skills-first approach ensures you
• have the tools and knowledge to grow, lead, and thrive in an AI-enabled future.
• Industry Competitive

Benefits

We offer comprehensive benefit plans to include

flexible vacation, two company-wide Mental Health Days off, access to the

Headspace app, retirement savings, tuition reimbursement, employee incentive

programs, and resources for mental, physical, and financial wellbeing. Culture:

Globally recognized, award-winning reputation for inclusion and belonging,

flexibility, work-life balance, and more. We live by our values: Obsess over our

Customers, Compete to Win, Challenge (Y)our Thinking, Act Fast / Learn Fast, and

Stronger Together. Social Impact: Make an impact in your community with our

Social Impact Institute. We offer employees two paid volunteer days off annually

and opportunities to get involved with pro-bono consulting projects and

Environmental, Social, and Governance (ESG) initiatives. Making a Real-World

Impact: We are one of the few companies globally that helps its customers pursue

justice, truth, and transparency. Together, with the professionals and

institutions we serve, we help uphold the rule of law, turn the wheels of

commerce, catch bad actors, report the facts, and provide trusted, unbiased

information to people all over the world. Our use of AI within the recruitment

process Thomson Reuters utilizes Artificial Intelligence (AI) to support parts

of our global recruitment process. Unless you opt-out, our AI system will assess

the information provided by you and compare it to the requirements listed for

the role, and present the result to our recruitment personnel for further

review. The AI system acts as a supporting tool, but there is always a human

making the decision if you will be considered for the role. In the United

States, Thomson Reuters offers a comprehensive benefits package to our

employees. Our benefit package includes market competitive health, dental,

vision, disability, and life insurance programs, as well as a competitive 401k

plan with company match. In addition, Thomson Reuters offers market leading work

life benefits with competitive vacation, sick and safe paid time off, paid

holidays (including two company mental health days off), parental leave,

sabbatical leave. These benefits meet or exceeds the requirements of paid time

off in accordance with any applicable state or municipal laws. Finally, Thomson

Reuters offers the following additional benefits: optional hospital, accident

and sickness insurance paid 100% by the employee; optional life and AD&D

insurance paid 100% by the employee; Flexible Spending and Health Savings

Accounts; fitness reimbursement; access to Employee Assistance Program; Group

Legal Identity Theft Protection benefit paid 100% by employee; access to 529

Plan; commuter benefits; Adoption & Surrogacy Assistance; Tuition Reimbursement;

and access to Employee Stock Purchase Plan. Thomson Reuters complies with local

laws that require upfront disclosure of the expected pay range for a position.

The base compensation range varies across locations. For any eligible US

locations, unless otherwise noted, the base compensation range for this role is

$127,400 USD - $236,600 USD. For Ontario, Canada, the base compensation range

for this role is $100,000 CAD - $145,000 CAD. Base pay is positioned within the

range based on several factors including an individual’s knowledge, skills and

experience with consideration given to internal equity. Base pay is one part of

a comprehensive Total Reward program which also includes flexible and supportive

benefits and other wellbeing programs. This role may also be eligible for an

Annual Bonus based on a combination of enterprise and individual performance.

This job posting will close 09/30/2026. About Us Thomson Reuters informs the way

forward by bringing together the trusted content and technology that people and

organizations need to make the right decisions. We serve professionals across

legal, tax, accounting, compliance, government, and media. Our products combine

highly specialized software and insights to empower professionals with the data,

intelligence, and solutions needed to make informed decisions, and to help

institutions in their pursuit of justice, truth, and transparency. Reuters, part

of Thomson Reuters, is a world leading provider of trusted journalism and news.

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. 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. As a

global business, we rely on the unique backgrounds, perspectives, and

experiences of all employees to deliver on our business 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

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. More

information on requesting an accommodation here. Learn more on how to protect

yourself from fraudulent job postings here. More information about Thomson

Reuters can be found on thomsonreuters.com At Thomson Reuters, we’re not riding

the AI wave — we’re reshaping the future of professional work across law, tax,

compliance, and journalism. Here, you will collaborate with smart, ambitious

people who thrive on solving complex problems, delivering market-leading

solutions, and innovating with curiosity and care. Learn more about a career

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careers Our focus on a skills-first approach ensures you’ll have the tools and

knowledge to grow, lead, and thrive in an AI-enabled future.