Senior Software Engineer, CoCounsel AI Drafting

Overview

New Position : This position is open due to an existing vacancy to support our evolving business needs. Senior Software Engineer, AI

Are you ready to shape the future of legal technology with AI? Do you thrive in ambiguous, fast-moving environments where you can build products from the ground up? We are looking for a Senior Software Engineer to join the CoCounsel Drafting team. You will be hands-on designing and building the systems that transform how attorneys draft, review, and refine legal documents. You will work across the full stack — building AI pipelines, prompt layers, and frontend experiences into a seamless product. You will have the autonomy to focus on solving hard technical problems and shipping impactful products. If you are energized by ambiguity, take initiative, and love building new products, this role is for you.

Why this matters : Attorneys spend 60-70% of their time drafting documents. The tools we build transform the practice of law, giving legal professionals back countless hours to focus on higher-value work for their clients. We are deeply committed to our customers\' success and are looking for an engineer who shares that passion for making a real difference in how legal work gets done.

About The Role

In this opportunity as a Senior Software Engineer, AI, you will :

• Design and build AI-powered features for legal document drafting, owning features end-to-end across backend services and frontend experiences
• Build LLM-integrated systems — implementing prompt orchestration, AI pipelines, and the integration layers that connect AI capabilities to user-facing products
• Contribute to reliability and observability in AI systems, ensuring low-latency responses and high-quality outputs within the drafting engine
• Collaborate on technical decisions by evaluating trade-offs, proposing solutions, and implementing complex systems
• Thrive in ambiguity by proactively identifying problems, proposing solutions, and driving work forward without waiting for direction
• Collaborate cross-functionally with Product, Design, and Research to deliver impactful features that solve real customer problems
• Own quality and delivery by writing well-tested, maintainable code and shipping reliably

About You

You're a fit for the role of Senior Software Engineer, AI if you have the following required qualifications :

Additional Preferred Qualifications Include

Additional preferred qualifications include :

What’s in it For You?

Our use of AI in the recruitment process : Thomson Reuters uses AI to support parts of the global recruitment process. Unless you opt-out, our AI system will assess your information and present results to recruitment personnel for review. The AI system is a tool; a human makes the final decision on consideration for the role.

Thomson Reuters complies with local law regarding pay ranges. For Ontario, Canada, the base compensation range for this role is CAD 105,000 – CAD 155,000, with further components in a comprehensive Total Rewards package. This role may be eligible for an annual bonus based on performance.

About Us

Thomson Reuters informs the way forward by bringing together trusted content and technology for professionals across legal, tax, accounting, compliance, government, and media. Reuters, part of Thomson Reuters, is a world-leading provider of trusted journalism and news. We are powered by 26,000 employees across 70+ countries, committed to objectivity, accuracy, fairness, and transparency. We are an Equal Employment Opportunity Employer providing a drug-free workplace. We make reasonable accommodations for qualified individuals with disabilities and for sincerely held religious beliefs in accordance with applicable law. More information on accommodations and protecting yourself from fraudulent postings is available. Learn more at thomsonreuters.com.

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