Lead Software Engineer, CoCounsel AI Assistant

Lead Software Engineer, CoCounsel AI Assistant

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Thomson Reuters is seeking a Lead Software Engineer for the CoCounsel AI Assistant who will lead multiple significant projects, programs and business initiatives, demonstrating creativity and ingenuity. This role requires end‑to‑end technical solutions and solving complex ambiguous problems.

• Build user‑facing features which drive the CoCounsel chat application, and platform capabilities to enable partners across the company to reach customers.
• Develop delightful application code, easy‑to‑use framework and component libraries, and push the team to be efficient, productive, and nimble in a fast‑moving field.
• Bring deep expertise in backend engineering while considering frontend and platform implications, especially as evolving LLM capabilities (e.g., real‑time streaming) require coordinated changes across the stack.
• Act as an IC leadership role, expecting technical expertise and excellent interpersonal and communication skills with peers and stakeholders.
• Work collaboratively with colleagues up and down the technical stack.

You’re a fit for the role of Lead Software Engineer if your background includes…

• At least five years professional software development experience. Formal computer science education is a plus but not required.
• Experience in technical leadership such as mentoring other engineers, breaking features down into stories, and discussing implementations.
• Deep expertise in back‑end technologies and architectures (Python, React, FastAPI, event‑driven systems, API design, real‑time communication such as websockets, RPC, or SSEs).
• Excellent communication skills and ability to collaborate effectively, and a self‑starter mentality with quick learning and adaptability.
• Proven ability to execute both tactical and strategic solutions.

• Experience with AWS/GCP, large language models, machine learning applications, metrics, and agentic systems.
• Track record of utilizing the cutting edge of AI tooling and techniques.
• Have strong opinions about the future of LLM‑driven application UX.

• Flexibility & Work‑Life Balance:
  Flex My Way policies, up to 8 weeks of work‑from‑anywhere per year.
• Career Development and Growth:
  Grow My Way programming and skills‑first approach.
• Industry Competitive Benefits:
  Comprehensive benefit plans including flexible vacation, mental health days, Headspace app, retirement savings, tuition reimbursement, incentive programs, and wellness resources.
• Culture:
  Globally recognized reputation for inclusion, flexibility, work‑life balance, and values.
• Social Impact:
  Two paid volunteer days and ESG initiatives.
• Real‑World Impact:
  Helping customers pursue justice, truth, and transparency.

Thomson Reuters offers market‑competitive health, dental, vision, disability, and life insurance programs, a competitive 401(k) plan with company match, and work‑life benefits such as vacation, sick and safe paid time off, paid holidays (including two mental health days off), parental leave, sabbatical leave, and additional optional benefits.

Base compensation range for eligible US locations: $116,900 – $217,100. This role may also be eligible for an annual bonus based on enterprise and individual performance.

This job posting will close 01/31/2026.

Thomson Reuters is an Equal Employment Opportunity Employer. We seek talented, qualified employees in all operations worldwide regardless of race, color, sex/gender, pregnancy, gender identity and expression, national origin, religion, sexual orientation, disability, age, marital status, citizen status, veteran status, or any protected classification under applicable law. We also make reasonable accommodations for qualified individuals with disabilities and for sincerely held religious beliefs in accordance with applicable law.