Senior Software Engineer (Backend) - Materia AI

Thomson Reuters; Toronto; Hybrid; CAD 90,000 - 140,000; Full time

Job summary

An innovative company is seeking a Senior Backend Engineer to join a dynamic team focused on creating AI-driven software for accounting professionals. In this role, you'll design and implement backend services that power generative AI agents, ensuring performance and reliability. Collaborate with top experts in AI and software development while fostering a culture of continuous improvement. Enjoy a flexible hybrid work model, comprehensive benefits, and opportunities for career growth in a supportive environment that values diversity and inclusion. This is your chance to make a significant impact in a fast-paced, evolving industry.

Benefits

Flexible hybrid work model

Comprehensive benefits

Flexible vacation

Mental health days

Wellness resources

Career growth opportunities

Volunteer days

ESG initiatives

Qualifications

• 4+ years in backend development with strong Python skills.
• Experience in building scalable web services and APIs.

Responsibilities

• Develop and maintain backend services using Python and FastAPI.
• Implement AI orchestration systems integrating LLMs.

Skills

Python

FastAPI

PostgreSQL

AWS

API Design

Debugging

Collaboration

Problem Solving

Education

Bachelor's in Computer Science

Tools

AI APIs

Vector Databases

Job description

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About the Role

As a Senior Backend Engineer, you will:

• Innovate in a Startup-Like Environment: Be part of a fast-moving, forward-thinking group creating AI-driven software for accounting professionals. Work with top AI and software development experts, leveraging cutting-edge technology. This team was formed from the recent acquisition of Materia.
• Build AI-Driven Systems: Design and implement backend services powering generative AI agents and orchestration systems, ensuring performance, reliability, and adaptability.
• Collaborate Across Functions: Work with AI/ML engineers, frontend developers, product managers, and designers to build robust services supporting AI experiences, including Conversations, Workspaces, Grid, and Knowledge Base.

Key Responsibilities

Backend Development & AI Integration

• Develop and maintain backend services using Python, FastAPI, and PostgreSQL.
• Implement AI orchestration systems integrating LLMs from OpenAI, Anthropic, and other providers.
• Design APIs and backend logic for real-time AI interactions.
• Help design our AI Platform to automate various AI-driven tasks in accounting.

Performance & Scalability

• Ensure backend systems are secure, scalable, and optimized for AI applications.
• Monitor and improve system performance across millions of documents and AI interactions.

Collaboration & Leadership

• Work with AI researchers, engineers, and product teams to translate AI capabilities into applications.
• Foster a culture of experimentation and continuous improvement, exploring new AI technologies.

About You

You are a fit if your background includes:

Required Skills & Experience

• Bachelor’s in Computer Science, Engineering, or related field, or equivalent experience.
• 4+ years in backend development, building scalable web services and APIs.
• Strong Python skills, with experience in FastAPI, PostgreSQL, and AWS.
• Experience designing APIs and data models.
• Proven debugging skills and experience in production-grade software.
• Excellent communication and collaboration skills.
• Passion for AI-driven software and new engineering paradigms.
• Creative problem solver interested in exploring new technologies.
• Committed to building reliable AI-first systems.
• Comfortable in a fast-paced, evolving environment.

Preferred Skills & Experience

• Experience with AI systems, agent architectures, or AI APIs from providers like OpenAI and Anthropic.
• Knowledge of vector databases, embeddings, or search-based AI.
• Strong opinions on testing strategies and automation.

What’s in it for You

• Flexible hybrid work model (2-3 days in office, depending on role).
• Supportive policies for work-life balance, including flexible work arrangements and up to 8 weeks of remote work per year.
• Opportunities for career growth, continuous learning, and skill development.
• Comprehensive benefits including flexible vacation, mental health days, wellness resources, and more.
• Inclusive culture emphasizing belonging, flexibility, and shared values.
• Opportunities to make social impact through volunteer days and ESG initiatives.
• Work in a company that helps uphold justice, truth, and transparency globally.

About Us

Thomson Reuters brings together trusted content and technology to help professionals make informed decisions across legal, tax, accounting, compliance, government, and media sectors. Our products combine specialized software and insights, empowering professionals worldwide. With over 26,000 employees in more than 70 countries, we prioritize objectivity, accuracy, fairness, and transparency. We are committed to diversity and inclusion and offer accommodations for individuals with disabilities or religious beliefs.