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Added 2 hours ago
P
Senior AI Engineer
Perceptic
Engineer, BC
- Full-time
We are hiring Senior AI Engineers who have shipped real AI product experiences. We mean people who have built AI products, broken them in production, fixed them, and shipped them to users…
Added 5 hours ago
Senior Data Scientist I
Bell
Toronto, ON
Added 10 hours ago
AS
Sr. Applied Scientist, Workforce Solutions
Amazon Science
Vancouver, BC
- Full-time
We are looking for a Sr. Applied Scientist to join our ML/AI team to work on Advanced Optimization and LLM solutions. You will partner with Software Engineers, Machine Learning Engineers,…
Added 12 hours ago
SL
Senior Data Scientist
Sun Life
Toronto, ON · Waterloo, ON · Sun Life Toronto One York
- Full-time
Reporting to the Director, Data Science, as a Senior Data Scientist you will focus on supporting Canadian business units in accelerating the growth and application of advanced analytics in…
Added 14 hours ago
Principal Data Scientist
Region of Waterloo
Waterloo, ON
…required performance measures, and reports to program areas, senior leadership, and Council, where applicable. Provides support and guidance to staff on data analysis and data visualization…
Added 19 hours ago
K
Senior Consultant, Financial Services-Insurance & Wealth & Asset Management
KPMG
ON · Toronto, Ontario
- Full-time
…focused on insurance and wealth management. We are looking for Senior Consultants who want to help leading financial services organizations solve complex business problems, transform how…
Added 21 hours ago
ME
Project Manager, Environmental Scientist
Millennium EMS Solutions Ltd.
Guelph, ON
- Full-time
Ontario - Environmental Project Manager or Senior Project Manager
Added 21 hours ago
BS
Senior Researcher
Bentham Science
Canada
- Volunteer
Scientist or researcher (PhD) with experience in Civil Engineering and its related subject areas, including structural, geotechnical, and construction engineering.
Added 22 hours ago
A/
Lead Applied Scientist – Signal Processing & Machine Learning
AquaEye / VodaSafe Inc
Vancouver, BC · Greater Vancouver, BC
- $120,000 to $180,000 CAD / year
- Full-time
…develop new products, we are looking for a hands-on Applied Scientist with deep experience working with complex real-world sensor data, signal processing, acoustics, sound engineering,…
Added 22 hours ago
BP
Lead Applied Scientist - Signal Processing & Machine Learning- AquaEye
BLANKSLATE Partners
Remote, Canada
- Full-time
- Remote
…develop new products, we are looking for a hands-on Applied Scientist with deep experience working with complex real-world sensor data, signal processing, acoustics, sound engineering,…
Added 1 day ago
T
Senior Data Scientist
TechBlocks
Vaughan, ON
- Contract
We are hiring a lead data scientist to own the technical strategy and hands-on development of large-scale optimization and machine learning systems that drive real operational decisions -…
Added 1 day ago
Senior Data Scientist
Momentum Financial Services Group
Toronto, ON
…business needs and new initiatives. Reporting directly to the Senior Director of Data Science, the Senior Data Scientist will be the subject matter expert for predictive analytics and…
Added 1 day ago
WT
Senior Data Scientist, Growth Data
Wealthsimple Technologies
Remote, Canada
- $151,000 to $189,000 CAD / year
- Full-time
- Remote
…decision making across all marketing channels. We're looking for a Senior Data Scientist who will serve as a domain expert for one of our key marketing pillars, driving optimization through…
Added 1 day ago
J
Senior Data Scientist
Jobgether
Canada
- Full-time
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Data Scientist based in Canada.
Added 2 days ago
K
Architect, Machine Learning (Principal Scientist)
Kinaxis
Ottawa, ON
- Full-time
…capabilities. As part of the Product R&D organization, you will play a senior technical leadership role in applied AI, helping identify promising techniques, develop differentiated…
Added 3 days ago
T
R&D Engineer- Data Scientist
Tenova
Mississauga, ON
- Full-time
Collaborate with senior engineers and project managers to support timely, cost-effective project execution.
Added 3 days ago
C
Senior Data Scientist – Life and Health
Co-operators
Calgary, AB · Moncton, NB · Burlington, ON · Guelph, ON · Mississauga, ON · Ottawa, ON · Regina, SK
- Full-time
The Senior Data Scientist provides dedicated advanced analytics leadership within the Group Benefits Pricing, Reporting and Analytics team. The role focuses on enhancing actuarial…
Added 3 days ago
W
Senior Environmental Scientist / Engineer / Technologist
Worley
Cold Lake, AB
- Full-time
As a Senior Environmental Scientist / Engineer / Technologist, you will play a key role in leading contaminated site assessment and remediation programs across Alberta. This role blends…
Added 3 days ago
W
Intermediate Environmental Scientist, Engineer-in-Training or Technologist
Worley
Cold Lake, AB
- Full-time
As an Intermediate Environmental Scientist, Engineer-in-Training, or Technologist, you will play a key role in delivering contaminated site assessment, remediation, reclamation, and…
Added 3 days ago
W
Junior Environmental Scientist or Technologist
Worley
Cold Lake, AB
- Full-time
As a Junior Environmental Scientist or Technologist, you will play an important role in delivering field-based environmental programs that support remediation, decommissioning, reclamation,…
Added 3 days ago
W
Graduate Technical Consultant, Environmental Scientist
Worley
Cold Lake, AB · AB
- Full-time
Junior Environmental Scientist or Technologist
Added 3 days ago
T
Senior Data Engineer
TriMech
Oakville, ON
- Full-time
As Senior Data Engineer / Data Scientist, you will design, build, and operate the group's data ecosystem: integrating data from our core business systems, developing robust pipelines,…
Added 4 days ago
K
Engineer/Scientist (Piping and Mechanical Design) - New Brunswick
Kinectrics
Saint John, NB
- Full-time
Position: Engineer/Scientist (Piping and Mechanical Design)
Added 4 days ago
V
Senior Data Scientist
Visa
Toronto, ON
- Full-time
The Sr. Data Scientist is responsible for designing and deploying AI-powered tools and agent systems that combine LLMs and custom ML models into end-to-end solutions that support business…
Added 4 days ago
T
Senior Manager, Data Science
TD
Toronto, ON
- Full-time
The Senior Manager, Data Science leads a specialized team of data professionals varying in size and complexity that are responsible for aiding to drive changes and improvement in business…

eBay

Manager, Data Science – Risk & Trust

Toronto, ON, Canada

Full-time

Apply About employer

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Job details

Job type: Full-time
Experience: BA/BS with 8+ years, or Masters/PhD with 6+ years of experience in Data Science, Analytics, Quantitative Research, or a related field
Posting language: English
Posted: Oct 1, 2026

Original job description

At eBay, we're more than a global ecommerce leader - we’re changing the way the world shops and sells. Our platform empowers millions of buyers and sellers in more than 190 markets around the world. We’re committed to pushing boundaries and leaving our mark as we reinvent the future of ecommerce for enthusiasts.

Our customers are our compass, authenticity thrives, bold ideas are welcome, and everyone can bring their unique selves to work - every day. We're in this together, sustaining the future of our customers, our company, and our planet.

Join a team of passionate thinkers, innovators, and dreamers - and help us connect people and build communities to create economic opportunity for all.

Build the future of safe commerce

Millions of people buy and sell on eBay every day, making it one of the largest and most diverse marketplaces worldwide. A group of analysts, scientists, and strategists work behind the scenes to keep the platform safe, fair, and dependable. We are searching for an outstanding Data Scientist to join eBay’s Trust & Risk Analytics team in Toronto and help define marketplace safety at scale.

The opportunity

This is not a role for someone who wants to run analyses in isolation. As a Data Scientist in Trust & Risk, you will operate as a strategic analytics partner to senior leaders across Trust, Risk, Product, Engineering, Policy, and Shipping. You will build how eBay identifies, measures, and reduces transaction risk - and your work will directly influence platform decisions affecting hundreds of millions of users globally.

You will lead the analytical approach for several complex workstreams, such as seller risk, buyer risk, account risk, eBay Money Back Guarantee, and shipping loss. You will also develop measurement and decision frameworks that promote accountability and influence business outcomes throughout the organization.

What you'll do

Build Trust & Risk Strategy: Define and drive analytical strategy across Trust & Risk domains, translating organizational objectives into measurable priorities
Define Enterprise Measurement: Build enterprise-scale benchmarks and quantitative frameworks for transaction risk, decision quality, false positives, residual exposure, and return on investment
Lead Across Workstreams: Lead simultaneous high-impact analytical workstreams, connecting insights across risk vectors and organizational boundaries
Influence Cross-Functional Decisions: Guide senior leaders across Trust, Product, Finance, Engineering, and Policy with clear, compelling, evidence-based recommendations
Identify & Prioritize Opportunities: Identify and prioritize the highest-value opportunities across customer experience, marketplace risk, and transaction loss
Raise the Analytical Bar: Mentor and develop other data scientists, raising the quality of analytical thinking and execution across the team

What we're looking for

BA/BS with 8+ years, or Masters/PhD with 6+ years of experience in Data Science, Analytics, Quantitative Research, or a related field
Demonstrated ability to move from ambiguous business problems to structured analytical strategies with measurable organizational impact
Strong technical foundation: proficiency in Python or R, SQL, and applied quantitative/statistical methods
Proven experience leading multiple complex analytical workstreams simultaneously and driving sustained outcomes
Outstanding executive communication skills - you make the complex simple and the insightful actionable
Track record of influencing cross-functional decisions at senior levels without relying on direct authority

Preferred experience

Prior experience in marketplace trust, fraud, transaction risk, or e-commerce
Background in developing enterprise measurement frameworks for loss, decision quality, or risk exposure
Experience in a leading technology or e-commerce company
Familiarity with machine learning, NLP, or LLM/GenAI applications

Why ebay

eBay is a passionate company with nearly 30 years of history connecting buyers and sellers across 190 markets. The Trust & Risk team is central to that mission - and this role is one of the most strategically visible in the organization. You'll have the scale to make an impact, the autonomy to lead, and the opportunity to build something that protects real people. Join us in Toronto and help create a safer, more trusted global marketplace!

Additional Details

This job posting relates to an existing vacancy within eBay.

eBay is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, sexual orientation, gender identity, and disability, or other legally protected status. If you have a need that requires accommodation, please contact us at talent@ebay.com. We will make every effort to respond to your request for accommodation as soon as possible. View our accessibility statement to learn more about eBay's commitment to ensuring digital accessibility.

We use cookies to enhance your experience and may use AI tools for administrative tasks in the hiring process. To learn how we handle your personal data and use AI responsibly, please visit our Talent Privacy Notice, Privacy Center, and AI Hiring Guidelines.

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More about this job

Responsibilities

You will lead the analytical strategy for Trust & Risk domains, defining enterprise-scale measurement frameworks to identify and reduce transaction risk. Additionally, you will partner with senior leadership across product, engineering, and policy to drive evidence-based decisions that enhance marketplace safety.

Requirements

Candidates must have 6-8+ years of experience in Data Science or quantitative research with a strong technical foundation in Python, R, and SQL. Proven ability to lead complex analytical workstreams and influence cross-functional stakeholders at an executive level is required.

Skills

Data Science
Analytics
Python
R
SQL
Quantitative Research
Statistical Methods
Risk Management
Fraud Detection
Machine Learning
NLP
GenAI
Strategic Planning
Executive Communication
Cross-functional Leadership
Measurement Frameworks

Visa sponsorship

Not detected in the job text

Keywords

Data Science
Risk Management
Trust & Safety
Marketplace
E-commerce
Python
R
SQL
Quantitative Analysis
Statistical Methods
Fraud
Transaction Risk
Machine Learning
NLP
GenAI
Strategic Analytics
Measurement Frameworks
Decision Quality
Return On Investment
Cross-functional Collaboration
Executive Communication
Data-driven Decision Making
Product Strategy
Engineering
Policy
Analytics Leadership
Risk Exposure
Marketplace Safety
Enterprise Benchmarks
Mentorship

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