Senior Software Engineer, AI

Thomson Reuters; Toronto; Hybrid; CAD 90,000 - 150,000; Full time

Job summary

An innovative firm is seeking a Senior Software Engineer to join a dynamic team focused on developing AI-driven solutions for legal professionals. In this role, you will design user interfaces and backend services using a micro-frontend architecture, leveraging technologies like Python, AWS, and modern frameworks. Collaborate with top experts in AI and software development to create impactful solutions that enhance legal practices. This position offers a hybrid work model, competitive benefits, and a commitment to professional growth, making it an exciting opportunity for those passionate about technology and innovation.

Benefits

Flexible working arrangements

Vacation days

Mental health days

Retirement plans

Supportive work-life balance policies

Qualifications

• 5+ years in backend development, building scalable web services.
• 3+ years of Python experience with FastAPI and PostgreSQL.

Responsibilities

• Develop backend services with Python and FastAPI for AI integration.
• Ensure systems are secure, scalable, and optimized for AI applications.

Skills

Python

AWS

FastAPI

PostgreSQL

Java

React

Angular

REST APIs

Data Engineering

DevOps

Education

Bachelor's Degree in Computer Science

Tools

Terraform

Job description

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Senior Software Engineer, AI - Westlaw AI

We are looking for a highly motivated and experienced Senior Software Engineer to become part of our dynamic and innovative team focused on developing content-centric AI-driven solutions for legal professionals, including our flagship product, Westlaw. In this role, you will be responsible for designing and developing user interfaces and backend services using a micro-frontend architecture, utilizing technologies such as Java, React/Angular, Python, REST APIs, and AWS cloud infrastructure.

About the Role:

As a Senior Software Engineer - AI, your responsibilities include:

1. Innovating, implementing, and operationalizing solutions in a fast-paced environment.
2. Creating AI-driven software for legal professionals, working with top AI and software development experts.
3. Designing and implementing backend services for generative AI agents and orchestration systems.
4. Collaborating with AI/ML engineers, frontend developers, product managers, and designers to build AI interfaces like Conversations, Workspaces, Grid, and Knowledge Base.

Key Responsibilities:

1. Backend Development & AI Integration: Develop backend services with Python, FastAPI, and PostgreSQL; implement AI orchestration systems; design APIs for real-time AI interactions.
2. Performance & Scalability: Ensure systems are secure, scalable, and optimized for AI applications; monitor and improve system performance.
3. Collaboration & Leadership: Work with AI researchers and product teams; foster a culture of experimentation and continuous improvement.

About You:

You should have:

• Bachelor's Degree in Computer Science or related field, or equivalent experience.
• 5+ years in backend development, building scalable web services and APIs.
• 3+ years of Python experience with FastAPI and PostgreSQL.
• Expertise in AWS cloud services and infrastructure management tools like Terraform.
• Strong background in Data Engineering and retrieval systems.
• Experience with modern DevOps practices, LLMs, AI solutions, and agentic systems.
• Excellent interpersonal and communication skills, with a pragmatic and curious mindset.

What’s in it For You?

• Hybrid work model with flexible working arrangements.
• Supportive policies for work-life balance and professional growth.
• Competitive benefits including vacation, mental health days, retirement plans, and more.
• A culture committed to inclusion, social impact, and making a real-world difference.

About Us

Thomson Reuters provides trusted content and technology for legal, tax, accounting, compliance, government, and media professionals. With over 26,000 employees worldwide, we are committed to objectivity, accuracy, fairness, and transparency. Join us to help shape industries that move society forward.