Software engineer senior H/F (IT)

Join Team CARFAX as a Senior Software Engineer

Isn't it time you bragged about where you work? We pride ourselves on being mission-focused on helping to grow a brand built on accuracy and integrity. We care deeply about our products and our customers. We help millions of consumers make more-informed decisions every day. We know that our teammates are our most valuable asset, and we value a balanced life while tackling challenging projects in a fast-paced environment. Our four-day week continues in Summer 2026!

This position will require 2 days in the London, ON office per week, subject to change with future business needs.

As a Senior Software Engineer you will be a part of the CARFAX Data & AI / ML team. You will be working collaboratively with ML Engineers and Data Scientists to build and scale machine learning solutions, platforms, and pipelines to support machine learning initiatives at CARFAX. Leveraging the latest techniques and tools, this unique opportunity will aim to unlock the hidden potential in billions of records and enrich the quality of data provided by our automotive reporting products delivered daily to consumers across the globe.

Working in a dynamic team environment using Agile practices

• Designing, building, and maintaining scalable ML model serving infrastructure and CI/CD pipelines for machine learning (MLOps).
• Writing high-performing, robust code to guarantee fast and accurate delivery of new system features and production-ready ML model deploymentson high-visibility projects
• Participating in design decisions, including technology research and prototyping for model monitoring, versioning, and feature stores.
• Utilizing test driven development and continuous integration methods for both application code and the ML model lifecycle.
• Collaborating closely with other engineers, architects, Data Scientists, ML Researchers,support teams, and business stakeholders
• Apply best practices for architecture, security, and performance of complex systems in Java and Python, with a focus on productionizing ML models.
• Sharing your knowledge with junior and other senior team members on best practices for MLOps.

Experience with Python (required for ML engineering and toolsets).

• Microservices architectural pattern
• Knowledge with client/server architecture and building web services using REST or GraphQL for high-throughput model inference.
• Relational and NoSQL databases system such as MySQL, Mongo, DynamoDB OR Elasticsearch.
• Experienced with developing in AWS cloud environment (including specialized services like AWS Sagemaker, EKS, or Lambda for ML workloads).
• MLflow, Kubeflow, Sagemaker Pipelines).
• Experienced with full SDLC development including design, building, testing, deployment, upgrade and support with a specialization in the ML model lifecycle and orchestration.
• Strong understanding of model monitoring (data drift, performance degradation) and model governance (versioning, lineage tracking).
• Ability to provide leadership and mentor engineers through complicated technical challenges.
• Attractive salary, comprehensive benefits, and generous time-off policies.
• Flexible Work Schedules: Enjoy 4-day summer work weeks and a winter holiday break.
• Retirement Support: 401(k) / DCPP matching.
• Performance Rewards: Annual bonus program to recognize your contributions.
• Casual, dog-friendly offices designed for creativity and collaboration.

The anticipated base salary range for this position is CAD $92,600 to $136,000 annually. Carfax offers competitive compensation, comprehensive healthcare coverage, and the chance to make a meaningful impact in an industry-leading organization. S&P Global has recently announced the intent to separate our Mobility Segment into a standalone public company.
CARFAX, part of S&P Global Mobility, helps millions of people every day confidently shop, buy, service and sell used cars with innovative solutions powered by CARFAX vehicle history information. The expert in vehicle history since 1984, CARFAX provides exclusive services like CARFAX Used Car Listings, CARFAX Car Care, CARFAX History-Based Value and the flagship CARFAX® Vehicle History Report™ to consumers and the automotive industry. CARFAX owns the world’s largest vehicle history database and is nationally recognized as a top workplace by The Washington Post and Glassdoor.com. S&P Global is the world’s foremost provider of credit ratings, benchmarks, analytics and workflow solutions in the global capital, commodity and automotive markets.
It is the policy of CARFAX to provide equal employment opportunity to all persons regardless of race, color, sex, pregnancy, religion, national origin, age, ancestry, citizenship status, veteran status, military status, disability or handicap, sexual orientation, genetic information or any other status protected by federal, state or local law. In addition, CARFAX will provide reasonable accommodations for qualified individuals with disabilities. We are a participant in E-Verify.
CARFAX Canada is an equal opportunity employer, and all qualified candidates will receive consideration for employment without regard to race/ethnicity, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, marital status, military veteran status, unemployment status, or any other status protected by law.