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Added 3 mins ago
Production Engineer, New Graduate Opportunity, (12-month contract)
Siemens
Concord, ON
Added 3 mins ago
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Director Medical Imaging Services Saskatoon
HealthCareersInSask.ca
Saskatoon, SK
- Full-time
Job Description: The Director, Diagnostic Imaging Services (Saskatoon) is a key leader in Saskatchewan health care, partnering with system leaders to achieve our province’s healthcare…
Added 4 mins ago
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Advisor, Indigenous Programs (Coastal GasLink Phase 2)
Raise
Vancouver, BC
- Full-time
Degree, diploma, or equivalent combination of education and experience in Indigenous Studies, Social Sciences, Business Administration, Community Development, Public Administration, or a…
Added 4 mins ago
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Media Production Systems Architect (T & I) (Telework/Hybrid)
Radio-Canada
Montreal, QC
- Full-time
As a part of the Architecture and strategic development, production systems architecture team, you will be mandated to design and plan CBC/Radio-Canada future media infrastructure, with a…
Added 4 mins ago
AU
Academic Coordinator, Nursing & Health Studies (UG)
Athabasca University
Athabasca, AB
- $62,630 to $112,525 USD / year
- Full-time
…AU stands poised for an exciting and ambitious next stage of…
Added 4 mins ago
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Senior Manager, Merchandising Planning
Walmart
Mississauga, ON
- Full-time
…inventory productivity across their portfolio. This role leads the development of long-range and annual financial plans, partnering with Merchandising and cross-functional teams to shape…
Added 18 mins ago
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Client Director
BGIS
Montreal, QC
- Full-time
Oversees the development and implementation of project plans and budget, and overall execution of project delivery and close-out requirements.
Added 18 mins ago
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Senior Administrative Assistant
Marsh McLennan
Toronto, ON
- Full-time
Perform general administrative duties such as ordering office supplies, business cards, promotional materials, and handling shipping/couriers.
Added 18 mins ago
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Software Engineer Internship - Winter 2027
DataVisor
Remote, Canada
- $40,000 to $50,000 CAD / year
- Full-time
- Remote
…architected to support multiple use cases across different business units flexibly, dramatically lowering total cost of ownership, compared to legacy point solutions. DataVisor is…
Added 19 mins ago
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ServiceNow Cyber Sales Executive (Senior Manager)
Deloitte
Toronto, ON
- Full-time
As a Sales Executive within this line of business you will participate and coordinate the development of sales strategies related to ServiceNow and related solutions while driving key sales…
Added 19 mins ago
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Senior Developer, Dynamics 365 and Power Platform
Bank of Canada
Toronto, ON
- Full-time
Further, you will have the full support of your leader and teammates to enhance your skills, experiment, and further your career through our customizable Learning & Development programs…
Added 19 mins ago
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Consultant, Analytic Insights
Deloitte
Toronto, ON
- Full-time
…people can find meaning and opportunity. It builds consumer and business confidence, empowers organizations to find imaginative ways of deploying capital, enables fair, trusted, and…
Added 19 mins ago
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Senior Consultant, Deal Transformation & Post Merger Integration
Deloitte
Toronto, ON
- Full-time
Participating in the upfront business development proposals and operational analyses to support our client’s business requirements.
Added 19 mins ago
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Technical Delivery Manager
Deloitte
Toronto, ON
- Full-time
…people can find meaning and opportunity. It builds consumer and business confidence, empowers organizations to find imaginative ways of deploying capital, enables fair, trusted, and…
Added 19 mins ago
MN
Senior Account Manager
Mosaic North America
Toronto, ON
- Full-time
We're looking for a Senior Account Manager to join our B2B Experiential Marketing team, serving as a strategic client leader and trusted partner while driving the planning and execution of…
Added 19 mins ago
MN
Senior Account Manager
Mosaic North America
Vancouver, BC
- Full-time
We're looking for a Senior Account Manager to join our B2B Experiential Marketing team, serving as a strategic client leader and trusted partner while driving the planning and execution of…
Added 19 mins ago
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Senior Consultant or Manager, Zero Trust Architecture
Deloitte
Toronto, ON
- Full-time
…people can find meaning and opportunity. It builds consumer and business confidence, empowers organizations to find imaginative ways of deploying capital, enables fair, trusted, and…
Added 19 mins ago
RI
Frontend Software Engineer React, TypeScript & AI-Assisted Development
Rose International
Toronto, ON
- Full-time
As a global leader in 3D design, engineering, and entertainment software, Client helps people imagine, design, and make a better world. Client accelerates better design through an…
Added 19 mins ago
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Media Production Systems Architect (T & I) (Telework/Hybrid)
CBC/Radio-Canada
Ottawa, ON · Toronto, ON · Montreal, QC
- Full-time
As a part of the Architecture and strategic development, production systems architecture team, you will be mandated to design and plan CBC/Radio-Canada future media infrastructure, with a…
Added 19 mins ago
Assistant Controller - PFC Canada
PACCAR
Mississauga, ON
PACCAR is a Fortune 200 company established in 1905. PACCAR Inc is recognized as a global leader in the commercial vehicle, financial, and customer service fields with internationally…
Added 19 mins ago
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Sr AI Architect
Accenture
Ottawa, ON · Toronto, ON · Montreal, QC
- Full-time
…strategy and purpose: to help clients optimize and reinvent their business with Data & Advanced AI - backed by a $3B investment and commitment to our people to do industry-defining work.…
Added 19 mins ago
Manager, Canadian Tax
ASSA ABLOY
Toronto, ON
…division and partnering closely with Finance, Legal, Treasury, and business leaders to ensure compliance with Canadian tax laws while identifying opportunities to optimize the company's tax…
Added 19 mins ago
PF
Assistant Controller - PFC Canada
PACCAR Financial Corp.
Mississauga, ON
- Full-time
PACCAR is a Fortune 200 company established in 1905. PACCAR Inc is recognized as a global leader in the commercial vehicle, financial, and customer service fields with internationally…
Added 19 mins ago
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Visual Merchandiser - Full Time
MEC
Nanaimo, BC
- $20.4 to $23 CAD / hour
- Full-time
…comprehensive benefit package, matching RRSP contributions, an employee development program that even lets you try out gear for yourself, self-directed and leader-based training, and a host…
Added 19 mins ago
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Manager, Strategic & Technology Change - Organization & Work Transformation
Deloitte
Winnipeg, MB
- Full-time
…of the Strategic & Technology Change practice by supporting business development, building client relationships, developing proposals and points of view, and advancing our capabilities in…

eBay

Applied Researcher

Toronto, ON, Canada

C$118,000 - C$157,500 · Full-time

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Job details

Pay: C$118,000 - C$157,500
Job type: Full-time
Posting language: English
Posted: Nov 4, 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.

Advertising is one of the fastest growing areas in eBay which in some ways, is defining the future of eBay. Digital advertising as an industry is growing rapidly, and the landscape is shifting as ecommerce advertisers are finding better value with ecommerce companies like eBay. As they shift budget from the duopoly of Google and Facebook, it builds a huge opportunity for eBay. Advertising is also amplifying eBay’s ecommerce by providing a tool for our sellers to move inventory and for buyers, by surfacing high quality items.

This team builds end-to-end ML and data-driven advertising systems that power both ad serving and advertiser-side optimization. We develop large-scale recommendation models to achieve marketplace monetization and bring relevant buyer experiences, while also providing intelligent guidance to help advertisers optimize their targeting, bids, budgets, inventory and business goals through automation, machine learning including GenAI. This is a high-impact and fast-growing area with significant business potential, requiring work with massive datasets and advanced machine learning techniques across ranking, forecasting, optimization, and experimentation.

As an Applied Researcher within our Advertising team, you will play a pivotal role in developing machine learning models and algorithms to guide advertisers optimally. This role will also include a scope positioned around data analysis. Your work will directly impact our guidance systems, enhancing ad performance and delivering actionable insights. You will lead our efforts in data analysis, uncovering trends, and driving data-informed decisions that support our advertisers' success.

What you will accomplish:

Machine Learning Development: Design, implement, validate and deploy machine learning models tailored to advertising applications. Focus on developing systems that provide actionable guidance to advertisers, optimizing ad performance and engagement.
Data Understanding: Analyze large volume of production data to produce business insights and identify potential opportunities for ML solutions
Cross-functional Collaboration: Work closely with product managers, engineers, and other researchers to integrate machine learning insights into our advertising products. Ensure that our advertiser guidance systems are aligned with user needs and business goals.
Innovation and Research: Stay abreast of the latest developments in machine learning and advertising technologies. Chip into internal and external research communities by publishing findings, attending conferences, and participating in collaborative projects.
Technical Mentoring: Guide junior researchers and data analysts. Share knowledge and standard methodologies in machine learning and data analysis to uplift the team's capabilities.

What you will bring:

Education: Ph.D. or M.S. (3 yrs+) in Computer Science, Statistics, Mathematics, or a related field with a focus on machine learning or data science.
Experience: Experience in applied research or development of machine learning models, data analysis, preferably with the advertising industry or a closely related field, i.e. search, recommender system and NLP.
Technical Proficiency: Strong programming skills in Python, Scala, or similar languages. Expertise in machine learning frameworks (e.g. PyTorch/Huggingface/Ray/vLLM) and experience with big data technologies (e.g., Hadoop, Spark).
Analytical Skills: Outstanding ability to analyze large datasets, identify trends, and derive actionable insights. Expertise in data mining and segmentation. SQL is a must.
Communication: Excellent verbal and written communication skills, with the ability to convey sophisticated technical concepts to non-technical partners.

Additional Details

The base pay range for this position is expected in the range below:

C$118,000 - C$157,500

Base pay offered may vary depending on multiple individualized factors, including location, skills, and experience. The total compensation package for this position may also include other elements, including a target bonus and restricted stock units (as applicable) in addition to a full range of medical, financial, and/or other benefits (including RRSP eligibility, various paid time off benefits, such as PTO and parental leave). Details of participation in these benefit plans will be provided if an employee receives an offer of employment.

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

Design, implement, and deploy machine learning models to optimize advertising performance and provide actionable guidance to advertisers. Lead data analysis efforts to uncover trends and drive data-informed decisions across the advertising platform.

Requirements

Requires a Ph.D. or M.S. with 3+ years of experience in machine learning, statistics, or a related field. Candidates must possess strong programming skills in Python or Scala and expertise in big data technologies and machine learning frameworks.

Skills

Machine learning
Data analysis
Python
Scala
PyTorch
Huggingface
Ray
vLLM
Hadoop
Spark
SQL
Data mining
Segmentation
Recommender systems
NLP
Advertising technology

Benefits

Medical benefits
Financial benefits
RRSP eligibility
Paid time off
Parental leave
Restricted stock units
Target bonus

Visa sponsorship

Not detected in the job text

Keywords

Applied Researcher
Machine Learning
Advertising
Ecommerce
Data Analysis
Python
Scala
PyTorch
Huggingface
Ray
vLLM
Hadoop
Spark
SQL
Data Mining
Segmentation
Recommender Systems
NLP
GenAI
Ranking
Forecasting
Optimization
Experimentation
Marketplace Monetization
Big Data

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