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Added 7 mins ago
BT
Senior Director, Technical Development Lead, Device
BlueRock Therapeutics
Toronto, ON
- Full-time
…Quality, and External Manufacturing teams to ensure device solutions are robust, scalable, regulatory‑compliant, and aligned with patient, clinician, and business…
Added 22 mins ago
C
Manufacturing Business Analyst (Cabico Coaticook)
Cabico&co
Coaticook, QC
- Full-time
…of the business and production teams with our technological solutions. You will be responsible for analyzing processes, documenting needs and defining the functional requirements that guide…
Added 22 mins ago
D
Account Executive, Mobility & Immigration, Enterprise | North America
Deel
Canada
- Full-time
…focuses on understanding client needs, presenting tailored solutions, and negotiating contracts to secure new business while expanding existing accounts. It is essential for delivering…
Added 22 mins ago
PC
Project Technologist/Senior Project TechnologistHazourdous Materials
Pinchin Canada
Barrie, ON
- $50,000 to $63,000 CAD / year
- Full-time
…create safe, healthy, and higher performing places through solutions that reflect innovation, care, and deep technical…
Added 22 mins ago
WC
Senior Manager, Data Analytics
Walmart Canada
Mississauga, ON
- Full-time
…The role may translate complex requirements into actionable solutions, support strategic initiatives, and enable informed decision-making through data quality, visualization, and…
Added 22 mins ago
PC
Forensic and Dispute Services Senior Manager (Bilingual FR/EN)
PwC Canada
Montreal, QC
- Full-time
…disputes issues. Our forensic and dispute specialists provide solutions and support for clients dealing with litigious matters, fraud, regulatory and crisis situations. As part of the team,…
Added 22 mins ago
EG
Regional Product Business Manager, Analytical
Endress+Hauser Group
Montreal, QC
- Full-time
Are you passionate about identifying new opportunities and transitioning customers to innovative solutions? You’ll be at the forefront of business development and customer engagement.
Added 22 mins ago
EI
Junior Highway Designer
Egis in Canada
Calgary, AB
- $50,000 to $70,000 CAD / year
- Full-time
…teams to deliver safe, efficient, and compliant transportation solutions. You will contribute to all phases of highway design, from preliminary planning through final construction…
Added 22 mins ago
PC
Forensic and Dispute Services Senior Manager (Bilingual FR/EN)
PwC Canada
Quebec, QC
- Full-time
…disputes issues. Our forensic and dispute specialists provide solutions and support for clients dealing with litigious matters, fraud, regulatory and crisis situations. As part of the team,…
Added 22 mins ago
T
Quality Engineer I
TD
Toronto, ON
- Full-time
Added 22 mins ago
C
Senior Manager, Safety Management System & Safety Culture
CAE
Montreal, QC
- Full-time
Develop modern, scalable, and sustainable learning solutions that improve effectiveness, reduce duplication and support consistent global application.
Added 22 mins ago
B
BUSINESS ADVISOR, OPERATIONAL EFFICIENCY (Automation) - Calgary
BDC
Calgary, AB
- Full-time
Support the development of advisory methodologies, tools, and solutions by staying current on industry trends and best practices.
Added 22 mins ago
OG
Vice President of Operations / Chief Operating Officer - Canada, GreyOwl
Onni Group of Companies
Vancouver, BC
- Full-time
Added 22 mins ago
M365 Architect
EY
Toronto, ON
…with offshore colleagues to configure and deploy the various…
Added 22 mins ago
F
Reddit & Communities Lead
Foundation
Remote, Canada
- $88,000 to $110,000 CAD / year
- Full-time
- Remote
Foundation helps B2B tech and SaaS brands get found, cited and recommended when their buyers ask AI for solutions. We do it through Generative Engine Optimization (GEO): the research,…
Added 36 mins ago
T
Manager, Digital Marketing Delivery - 12-month contract - Tangerine
Tangerine
Toronto, ON
- Contract
Our client-obsessed teams deliver flexible, accessible banking solutions, breakthrough products, and award-winning service. Beyond banking, we’re committed to making an impact in the…
Added 37 mins ago
NF
Director, Corporate Underwriting, Specialty Risk, Programs & Travel
Northbridge Financial
Calgary, AB · Vancouver, BC · Halifax, NS · Toronto, ON · Montreal, QC
- Full-time
- Other
Analyzing trends, identifying risks, and developing practical solutions
Added 37 mins ago
IB
Customer Experience Manager
Indigo Books & Music
Red Deer, AB
- From $42,500 CAD / year
- Full-time
Embrace and champion technology that creates high tech and high touch solutions for Indigo’s customers
Added 51 mins ago
C
Specialist Product Management-CA
CN
Quebec, QC
- Full-time
Translate business and operational needs into concrete technical solutions through a formal product roadmap
Added 51 mins ago
AS
Commercial & Residential Sales Representative (Construction / Design Industry)
Artivo Shades
Toronto, ON
- Full-time
…your home. We specialize in premium shading and outdoor living solutions, including pergolas, awnings, and indoor and outdoor shading products for residential and commercial clients. We…
Added 51 mins ago
EI
Preconstruction PM - ICI Projects
EBC Inc.
Mississauga, ON
- Full-time
Coordinate multidisciplinary teams, including designers, estimators, engineers, construction personnel, and external consultants, to develop winning project solutions.
Added 51 mins ago
IW
Senior Manager, Solution Architect 1
IG Wealth Management
ON · Ontario, Canada
- Full-time
The Solution Architect plays a key role in shaping and delivering technology solutions that support IG's marketing, advisor engagement, and digital experience capabilities. Working closely…
Added 51 mins ago
C
Student Intern, Corporate Sustainability
Celestica
Toronto, ON
- $23 to $30 CAD / hour
- Temporary
With deep expertise in design, engineering, manufacturing, supply chain management and platform solutions, Celestica enables critical data center infrastructure for AI, cloud, and hybrid…
Added 51 mins ago
IW
Senior Manager, Solution Architect 1
IG Wealth Management
MB · Manitoba, Canada
- Full-time
The Solution Architect plays a key role in shaping and delivering technology solutions that support IG's marketing, advisor engagement, and digital experience capabilities. Working closely…
Added 51 mins ago
AC
Data Engineer - Snowflake, dbtCore/Cloud, AWS
Aviva Canada
Markham, ON
- Full-time
…you will contribute to the design and implementation of data solutions that support our growing business and next-generation Snowflake platform. This role offers the opportunity to make a…

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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