Job Description

This posting is for proactive recruitment purposes and may be used to fill current openings or future vacancies within our organization.

Lead Software Engineer - AI, QA
We are seeking an experienced Lead Software Engineer to join our fast-moving, forward-thinking group that is creating AI-driven software for legal professionals, and our flagship product, Westlaw. You will be testing and implementing cutting-edge solutions using Python, REST APIs, AI technologies, and AWS cloud infrastructure.
About the Role:
In this role as a Lead Software Engineer - AI, QA, you will:
Lead AI quality strategy for the content engineering team and come up with a framework using AI that can be used for quality checks of content migration.

• Ability to work closely with the partners in coming up with testing plans, timelines, and release strategy for all of the content migration.

Innovate, implement and operationalize test frameworks in a fast-paced Environment
Be part of a fast-moving, forward-thinking group that is creating AI-driven software for legal professionals. You'll work with top AI and software development experts, leveraging cutting-edge technology to build intelligent and scalable systems. This role is for the developing backend services for Legal Research products.
Design and implement backend services that power generative AI agents and orchestration systems. This role requires both creativity and rigor to ensure our AI-driven solutions are performant, reliable, and adaptable to real-world use cases.
Work closely with AI/ML engineers from TR Labs, developers, product managers, and designers to build robust services that support generative AI experiences. Help to build out our core AI interfaces such as Conversations, Workspaces, Grid, and Knowledge Base.
Key Responsibilities:
Backend Development & AI Integration
Develop test suites for backend services using Python, FastAPI, and PostgreSQL.
Implement AI orchestration systems integrating LLMs from OpenAI, Anthropic, and other providers.
Design testing strategies for APIs and backend logic for real-time AI interactions.
Help to build our content services to automate many different AI driven workflows across the legal professional domain
Performance & Scalability
Ensure backend systems are secure, scalable, and optimized for AI-driven applications.
Monitor and enhance system performance, across millions of documents and AI driven interactions
Work closely with AI researchers, engineers, and product teams to translate AI capabilities into real-world applications.
Foster a culture of experimentation and continuous improvement, exploring new AI technologies and methodologies.
Work closely with AI researchers, engineers, and product teams to translate AI capabilities into real-world applications.
Foster a culture of experimentation and continuous improvement, exploring new AI technologies and methodologies.
About You
You're a fit for the role of Lead Software Engineer - AI, QA if your background includes:
Bachelor's degree in computer science, Computer Engineering, Related Field, or Equivalent Experience.
7+ years of hands-on software development experience in test automations, building scalable web services, and APIs.
3+ years of hands-on using Python
Expertise in AWS cloud services (Redis, DynamoDB, S3, SQS, Kinesis, KMS, IAM, Secret Manager, etc) or similar cloud services.
Experience managing infrastructure with Terraform, CloudFormation, or similar IaC tooling.
Strong Data Engineering background and experience with Retrieval Systems leveraging tools like OpenSearch.
Experience implementing modern DevOps best practices in production environments (CI/CD using GitHub Actions and AWS services (Code Pipeline/Code Build)
Experience with LLMs, AI Solutions, and evaluation and understanding of agentic systems and workflow
Excellent interpersonal skills with the ability to influence across organizational boundaries
A pragmatic and curious mindset that drives you to find elegant solutions to complex problems
Strong communication skills that enable you to articulate technical concepts to diverse audience
Demonstrated ability to mentor others and contribute to engineering culture
Experience in using AI-powered tools in SDLC is required
#LI-SM2
What's in it For You?
Hybrid Work Model: We've adopted a flexible hybrid working environment (2-3 days a week in the office depending on the role) for our office-based roles while delivering a seamless experience that is digitally and physically connected.
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
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 Ontario, Canada, the base compensation range for this role is $140,000 CAD - $175,000 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.
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
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Skills Required