Lead Applied Scientist in London

This posting is for proactive recruitment purposes and may be used to fill current openings or future vacancies within our organization. Are you excited about working at the forefront of applied research in an industry setting? TR Labs is the AI Research & Development arm of Thomas Reuters. We are seeking scientists with a passion for solving problems using state‑of‑the‑art artificial intelligence and machine learning.

What does Thomson Reuters Labs do? We experiment, we build, we deliver. Our core mission is to innovate industry‑leading solutions for Legal, Tax & Accounting, Risk, and News Media professionals. We systematically explore and develop new technologies, particularly those in relevant areas of AI/ML, with an unwavering focus on customer problems and opportunities.

About The Role: As a Lead Applied Scientist, you will define research strategy and lead high‑impact initiatives that shape Thomson Reuters’ AI/ML roadmap across multiple product features. You will drive innovation in specialized domains such as legal reasoning, document understanding, or knowledge graphs, establishing best practices and technical vision. You will provide thought leadership internally and externally, mentoring scientists across Labs and leading stakeholder engagement. You will develop a deep understanding of customer problems and the data that informs them.

About You:

• PhD or Master’s degree with equivalent industry experience in Computer Science, Machine Learning, or related field
• 7+ years of hands‑on experience building production IR, NLP, ML, or GenAI systems leveraging modern techniques
• Demonstrated experience leading through others in cross‑functional teams to deliver end‑to‑end AI capabilities
• Strong product mindset with ability to translate complex customer problems into successful AI applications
• Proven ability to demonstrate novel methods that influence product roadmaps and business outcomes
• Outstanding communication and analytical skills
• Deep expertise in RAG architectures, agentic frameworks, tool‑using systems, and evaluation methodologies
• Significant experience developing novel methods for complex professional domains such as medical, tax, or law
• Publications at top‑tier venues (ACL, EMNLP, NAACL, NeurIPS, ICLR, SIGIR, KDD)
• Experience delivering production code with well‑managed software/MLOps practices

What’s in it For You?

• Hybrid Work Model: flexible hybrid working environment (2–3 days a week in the office depending on the role) for office‑based roles.
• Flex My Way: supportive workplace policies designed to help manage personal and professional responsibilities, allowing up to 8 weeks of work from anywhere per year.
• Career Development and Growth: culture of continuous learning and skill development, including Grow My Way programming and skills‑first approach.
• Industry Competitive Benefits: comprehensive benefit plans including flexible vacation, two company‑wide mental health days off, access to Headspace app, retirement savings, tuition reimbursement, employee incentive programs, and resources for mental, physical, and financial well‑being.
• Culture: globally recognized reputation for inclusion and belonging, flexibility, work‑life balance, etc.
• Social Impact: two paid volunteer days off annually and opportunities to get involved with pro‑bono projects and ESG initiatives.
• Making a Real‑World Impact: helping customers pursue justice, truth, and transparency.

Our use of AI within the recruitment process supports parts of our global recruitment. Unless you opt‑out, the AI system will assess the information provided and compare it to the requirements listed for the role, presenting the result to our recruitment personnel for further review. This tool assists human decision‑making. In the United States, Thomson Reuters offers a comprehensive benefits package, including flexible work‑life benefits and a competitive 401(k) plan with company match. We are proud to be an Equal Employment Opportunity Employer providing a drug‑free workplace. Thomson Reuters makes reasonable accommodations for applicants with disabilities and for sincerely held religious beliefs in accordance with applicable law.