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Thomson Reuters

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Thomson Reuters is a leading provider of news and information tools tailored for professionals in law, tax, compliance, and government.

Toronto, ON

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Software Development
5,001+ people

About

Thomson Reuters (TSX/NDAQ: TRI) 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. For more information on Thomson Reuters, visit tr.com and for the latest world news, reuters.com.

Open positions

Senior Software Engineer – AI, Tax and Audit, FDE

On-site · Toronto

Job Description Build and deploy production AI solutions that help tax and audit professionals improve accuracy, streamline complex work, and deliver better outcomes for their clients. As a Senior Software Engineer, you will combine Python, backend engineering, large language models (LLMs), and client-facing delivery to turn business needs into secure, reliable applications. You will work across client engagements, independently lead simpler builds, and partner with Staff and Principal engineers on complex solutions. Key Responsibilities Own client delivery on simpler builds and standard…

Senior Software Engineer - AI, CoCounsel FDE

On-site · Toronto

Job Description Are you a hands-on AI engineer who wants to build the next generation of legal AI solutions from the ground up? Do you thrive taking an architectural blueprint and turning it into a robust, production-ready system that lawyers actually rely on? Join Thomson Reuters' CoCounsel Forward Deployed Engineering team — a high-impact group working at the frontier of legal AI, where your code ships directly to law firms and corporate legal departments and your engineering shapes how the world's leading legal professionals work. With one million professionals now relying on CoCounsel ac…

Staff Software Engineer, Search Retrieval Platform

On-site · Toronto

Staff Software Engineer, Search Retrieval Platform  Our vision   We are building the next-generation search platform, with a vision to democratize knowledge construction and consumption at Thomson Reuters. The platform consolidates search systems across Thomson Reuters products and services, serving millions of end users, internal agents, and internal search teams, into a fully managed, customizable, sovereign, and self-serve search platform.     Job Description: Advanced Content Engineering (ACE) is seeking a Staff Software Engineer to democratize retrieval at Thomson Reuters. You will…

Staff Software Engineer, Search Control Plane

On-site · Toronto

Staff Software Engineer, Search Control Plane  Our vision   We are building the next-generation search platform, with a vision to democratize knowledge construction and consumption at Thomson Reuters. The platform consolidates search systems across Thomson Reuters products and services, serving millions of end users, internal agents, and internal search teams, into a fully managed, customizable, sovereign, and self-serve search platform.     Job Description: The AI Enabled Software Engineering (AIESE) team is seeking a Staff Software Engineer for a highly impactful role at the foundatio…

Senior Software Engineer, Search Platform

On-site · Toronto

Senior Software Engineer, Search Platform  Our vision   We are building the next-generation search platform, with a vision to democratize knowledge construction and consumption at Thomson Reuters. The platform consolidates search systems across Thomson Reuters products and services, serving millions of end users, internal agents, and internal search teams, into a fully managed, customizable, sovereign, and self-serve search platform.     Job Description The AI Enabled Software Engineering (AIESE) team within Thomson Reuters is seeking Senior Software Engineers to build the core of that p…

Software Engineer

On-site · Toronto

Thomson Reuters is looking for a Software Engineer with an appetite to learn AI-code generation skills within our Editorial Tools & Services team.   In this role, you will play an essential role in designing and deploying software applications AI-first, collaborating with cross-functional teams to deliver solutions that meet customer needs. Your primary focus will be on core development tasks, demonstrating a good handle on programming languages and the use of various development tools with a focus on AI-generative development tools. You will develop the ability to integrate and consume APIs,…

Staff Software Engineer - II (KeyCite)

On-site · Toronto

Job Description As a Staff Software Engineer II at KeyCite, you will lead complex, business-critical engineering initiatives from architecture through production. You will modernise established platforms while maintaining the reliability that customers depend on, and you will set technical direction across teams. Key Responsibilities Lead complex engineering initiatives, designing and delivering end-to-end solutions for large-scale, business-critical systems. Modernize core KeyCite platforms and services using modern architectural patterns without disrupting critical customer-facing produc…

Senior Software Engineer – AI, Tax and Audit, FDE

On-site · Toronto

Job Description Build and deploy production AI solutions that help tax and audit professionals improve accuracy, streamline complex work, and deliver better outcomes for their clients. As a Senior Software Engineer, you will combine Python, backend engineering, large language models (LLMs), and client-facing delivery to turn business needs into secure, reliable applications. You will work across client engagements, independently lead simpler builds, and partner with Staff and Principal engineers on complex solutions. Key Responsibilities Own client delivery on simpler builds and standard…

Lead Data Scientist, Customer & Growth Analytics

On-site · Toronto

About the Role Thomson Reuters Legal is seeking a Lead Data Scientist to help power data-driven growth and adoption of our AI-enabled legal solutions. In this role, you will design, build, and maintain predictive models—including propensity-to-upgrade models—that identify customers most likely to expand into AI products such as CoCounsel. You will work closely with Lifecycle Marketing, Marketing Operations, and Customer Success to ensure insights and models are not only accurate, but actionable—embedded directly into our Customer Data Platform (Treasure Data) and downstream activation workfl…

Software Engineer

On-site · Toronto

Job Description As a Software Engineer on the Litigation Drafting team you will be building the next generation of AI agentic product for legal professionals. The team takes early Labs concepts and turns them into scalable, production-ready features.  You will be developing a product which is pushing the boundaries of agentic design by incorporating an complex workflow UI and a specialized Legal agent. This role is aimed at someone early in their career who wants to move quickly. You will get real ownership sooner than is typical, you will be expected to use AI tooling to multiply what one…

Senior Software Engineer

On-site · Toronto

Job Description We are looking for a hands-on Senior Software Engineer with strong DevOps and cloud platform expertise to design, build, deploy, and operate scalable cloud-native services and the engineering infrastructure that supports them. You will work primarily with Java, Spring Boot, AWS, PostgreSQL, CI/CD and Infrastructure as Code , taking ownership of solutions from development through production operations. You will partner with Product, Architecture, Security, DevOps and engineering teams to improve platform reliability, deployment velocity, operational maturity and developer exp…

Staff Software Engineer - AI I

Hybrid · Toronto

Architect and build enterprise-scale AI systems, including RAG pipelines, knowledge graphs, and autonomous agents. Provide technical leadership, mentor engineering teams, and drive AI strategy while ensuring operational excellence and security.

Staff Software Engineer - AI II

Hybrid · Toronto

Architect and build enterprise-scale AI systems, including RAG pipelines and autonomous agents, while providing senior technical leadership across the AI model lifecycle. Collaborate with cross-functional teams to drive AI innovation, ensure operational excellence, and deliver measurable business value.

Staff Software Engineer I

On-site · Toronto

Job Description   The Staff Software Engineer provides technical leadership across the Cloud Cost Management and Reporting portfolio, including home grown built tools for cost reporting, forecasting, optimization, software inventory, and related internal engineering tools. This role is responsible for driving architectural direction, delivering complex cross-functional initiatives, mentoring engineers, and ensuring the long-term scalability, reliability, and effectiveness of our solutions. The Staff Software Engineer partners closely with engineering leadership, product stakeholders, FinOps…

Staff Software Engineer I (Open)

Hybrid · Toronto

Define the technical direction and architecture for Content Tools that provide AI agents with governed access to proprietary legal content. Lead cross-team initiatives, establish evaluation standards, and ensure the reliability and performance of retrieval systems.

Principal Software Engineer – AI Platform & Architecture

Hybrid · Toronto

The Principal Software Engineer will own the architecture and AI strategy for the Cloud Audit Suite, leading cross-functional teams to integrate AI-native solutions. They will design scalable backend systems and mentor engineering staff to ensure high-quality, reliable, and auditable AI-driven workflows.

Senior Software Engineer

Hybrid · Toronto

Design, develop, and own production-grade content APIs and retrieval components that enable AI agents to access proprietary legal content. Collaborate with research scientists to improve search relevance while maintaining high standards for reliability, observability, and operational ownership.

Senior Software Engineer I

Hybrid · Toronto

You will design and ship scalable cloud services and REST APIs to support AI-driven document processing platforms. Additionally, you will collaborate with cross-functional teams and mentor junior engineers to maintain high engineering standards.

Software Engineer - AI – CoCounsel Forward Deployed Engineering

Hybrid · Toronto

Design, build, and deploy AI-powered solutions for legal workflows by partnering with cross-functional teams and clients. Evaluate LLM outputs for accuracy and compliance while integrating systems like CoCounsel and Westlaw into customer environments.