Senior Data Scientist (m/f/d) Toronto, ON (Canada)

Autotrader; Toronto; Hybrid; CAD 180,000 - 210,000; Full time

Benefits offered by this job

Annual bonus structure

Employee and Family Assistance program

Virtual wellness events

Regular internal training programs

3% Pension matching

Job summary

Autotrader in Toronto is seeking a Senior Data Scientist to design, build, and operate ML and GenAI systems powering our automotive marketplace across Europe and Canada. You will work end-to-end on production-ready models, from problem framing to monitoring, influencing engineering practices, and driving product outcomes.

The role emphasizes collaboration with Product, Engineering, and Business teams, with mentorship for junior data scientists and hands-on leadership in GenAI deployments.

Qualifications

• Advanced degree in Computer Science, Engineering, Mathematics or a comparable field.
• 6+ years of experience building and owning production ML systems end-to-end.
• Strong hands-on Python and ML frameworks, with production deployment experience.

Responsibilities

• Own ML and GenAI systems end-to-end in production, including framing, design, deployment, monitoring, and continuous improvement.
• Make architectural and methodological decisions for ML systems on AWS, balancing robustness and cost.
• Partner with Product, Engineering, and Business leaders to turn ambiguous problems into ML-enabled product solutions.
• Operate and evolve ML systems deployed across multiple countries and markets, accounting for data variations and regulations.
• Mentor other data scientists through hands-on guidance and design reviews.

Skills

Python

ML frameworks

GenAI/LLMs

Ownership

Mentoring

Education

Advanced degree in Computer Science, Engineering, Mathematics

Tools

AWS

MLops

Job description

We are TRADER , a Canadian leader in digital automotive solutions. Our flagship brands - AutoTrader.ca , AutoSync , Dealertrack Canada and CMS - help Canadians buy, sell, and finance vehicles with confidence.

Aspotof AutoScout24group ,Europe’slargestonlinecarmarketplace,we’reshapingthefutureofautomotiveretailin Canada andbeyond.

As Senior Data Scientist , you will be key contributor within our global Data Science organization, shaping AI and machine learning systems that sit at the core of our marketplace platforms across Europe and Canada.

You design, build, andoperatemachine learning and GenAI systems that run in production and matter to the business. You work on complex, ambiguous problems, exercise strong technical judgment, and take responsibility for outcomes - not just models. While this is a hands-on role, you are also expected to influence technical direction, raise the bar for engineering practices, and enable other data scientists and engineers to succeed. This position is permanent and based in Toronto.

What you’ll do

• Own ML and GenAI systems end-to-end in production, including problem framing, system design, deployment, monitoring, and continuous improvement
• Make sound architectural and methodological decisions for ML systems on AWS, balancing robustness, observability, cost, and long-term maintainability
• Partner closely with Product, Engineering, and Business leaders to turn ambiguous problems into ML-enabled product solutions with clear outcomes
• Operate and evolve ML systems deployed across multiple countries and markets, accounting for differences in data distributions, regulations, and constraints
• Mentor other data scientists through hands-on technical guidance, design reviews, and shared ownership of systems

What you’ll need

• Advanced degree in Computer Science, Engineering, Mathematics, or a comparable field
• 6+ years of experience building and owning production ML systems end-to-end in a real-world environment
• Strong hands-onexpertisein Python and modern ML frameworks, with the ability to ship,operate, and evolve ML systems in production
• Solid experience with AWS andMLOpspractices, including deployment, monitoring, and operating ML systems at scale
• Practical experience applying GenAI / LLMs in applied or production contexts, with a clear understanding of trade-offs and limitations
• Ability to influence technical decisions through clear judgment and collaboration, not formal authority
• Experience supporting and guiding more junior data scientists through hands-on collaboration, code reviews, and technical feedback
• Strong senseof ownership and accountability for outcomes, with a pragmatic approach to trade-offs and delivery

What’s in it for you

We understand that there is life at work and life outside of work. Here are a few benefits that support us to be our creative best.

• Employee and Family Assistance program
• Virtual wellness events
• Regular internal training programs
• Financial planning with 3% matching Pension
• Annual bonus structure

The base salary range for this position is CAD $180k – $210k.

This range reflects the expected compensation at the time of posting. The final offer may vary and can be higher based on relevant skills, experience, location, and market conditions. Based on the role, the total rewards package may also include benefits, bonus, and other employee offerings.

UseofArtificialIntelligenceinHiring:Weuseartificialintelligence(“AI”) inourhiringprocess,includingtoscreen,assess,orselectapplicantsforthisposition.

Vacancy Status: This job posting is for an existing vacancy.

Use of Artificial Intelligence in Hiring: We use artificial intelligence (“AI”) in our hiring process, including to screen, assess, or select applicants for this position.

Vacancy Status: This job posting is for an existing vacancy.