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Added 3 mins ago
SN
Manager, Facilities Management
Starlim North America
London, ON
- Full-time
…buildings, grounds, infrastructure, utilities and facility-related systems in support of a 24/7 manufacturing operation. Lead the Facility Cleaning and Facility Technical teams and provide…
Added 18 mins ago
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Vice-président(e), Santé, sécurité, sûreté et environnement
Davie
Levis, QC
- Full-time
…and overseeing all aspects of HSSE strategies, processes and systems in support of its shipbuilding and ship repair programs and…
Added 18 mins ago
Director of Firmware Engineering
Celero Communications, Inc.
Ottawa, ON
Celero is seeking an experienced, hands-on, and strategic Director of Firmware Engineering to lead the architecture, development, and validation of embedded firmware for our next-generation…
Added 18 mins ago
H
Director Major Capital Projects 1
HealthCareersInSask.ca
Saskatoon, SK
- Full-time
Professional background in relevant areas such as project management, architecture, engineering etc. would be an asset.
Added 18 mins ago
Mid-Level Civil Designer - Power Engineering
Kiewit
Calgary, AB
Home District/Group: Kiewit Power Engineering
Added 18 mins ago
Senior Geotechnical Applications Engineer
Mattr
AB · Edmonton, AB
…installation, and field performance of underground storage tank systems. Your civil and geotechnical expertise will help ensure site-specific applications are technically sound,…
Added 18 mins ago
BC
Intermediate Electrical Engineer
BBA Consultants
Thunder Bay, ON
- Full-time
As a member of the BBA Central Canada Electrical and Power Systems Engineering team, you’ll be responsible for technical quality, project scope execution and regional collaboration with…
Added 18 mins ago
BC
Intermediate Electrical Designer
BBA Consultants
Thunder Bay, ON
- Full-time
As a member of the BBA Central Canada Electrical and Power Systems Engineering team, you’ll be responsible for technical quality, project scope execution and regional collaboration with…
Added 18 mins ago
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Technical Delivery Manager
Deloitte
Toronto, ON
- Full-time
Lead end to end client projects and own planning and execution including acting as the primary key contact for the client.
Added 18 mins ago
WI
Senior Track Engineer
WSP in Canada
BC · British Columbia, Canada
- Full-time
Lead the design and delivery of complex rail infrastructure projects including rail transit projects and heavy rail project with expertise in all stages of design, construction, route…
Added 18 mins ago
NC
Supervisor, Mobile Maintenance
Newmont Corporation
Dease Lake 9, BC
- $114,000 to $152,000 CAD / year
- Full-time
Lead safe, reliable, and efficient mobile maintenance operations for open pit production equipment. You will drive equipment availability, minimize downtime, and ensure work is executed to…
Added 18 mins ago
WI
Senior Project Manager, Municipal Engineering
WSP in Canada
Fort McMurray, AB
- Full-time
10+ years of progressive experience in municipal infrastructure engineering, with a focus on water and wastewater conveyance systems. Experience working with the Regional Municipality of…
Added 18 mins ago
A
Ingénieur principal ou ingénieure principale / responsable technique
Alithya
Pickering, ON
- Full-time
As a Senior Engineer and Technical Lead, you'll join our Engineering Sub-Division, a multidisciplinary team focused on delivering innovative engineering solutions and professional services.…
Added 18 mins ago
S
Senior Electrical Advisor - T&D
Suncor
Fort McMurray, AB
- Full-time
…exciting opportunity for an experienced electrical professional to lead operational decision-making, guide teams through outages and emergent events, and support maintenance, commissioning,…
Added 18 mins ago
BC
Intermediate Electrical Engineer
BBA Consultants
Sudbury, ON
- Full-time
As a member of the BBA Central Canada Electrical and Power Systems Engineering team, you’ll be responsible for technical quality, project scope execution and regional collaboration with…
Added 18 mins ago
BC
Intermediate Electrical Designer
BBA Consultants
Sudbury, ON
- Full-time
As a member of the BBA Central Canada Electrical and Power Systems Engineering team, you’ll be responsible for technical quality, project scope execution and regional collaboration with…
Added 18 mins ago
FC
Cost Control Manager
FCC Construcción
Toronto, ON
- Full-time
…delivering extensive upgrades to rail infrastructure, signalling systems, electrification, stations, maintenance facilities, rolling stock, and Union Station. This landmark program will…
Added 18 mins ago
I
Business Analyst
isgSearch
Toronto, ON · Greater Toronto Area, Canada
- Contract
Lead business requirements gathering, analysis, and documentation.
Added 18 mins ago
WI
Administrateur(trice) de contrats
WSP in Canada
Toronto, ON
- Full-time
With an unmatched breadth and depth of engineering, advisory and science‑based expertise, our global minds unite to power local solutions.
Added 18 mins ago
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Director, Pharmacy Operations
Pillway
Brampton, ON
- Full-time
Automation and systems. Kroll workflow, automated dispensing (Parata, PacMed) and the operations side of new tooling, in partnership with our product and engineering teams.
Added 18 mins ago
BH
Specialist Engineer (Grid Telecom Operations)
BC Hydro
BC · Fraser Valley, BC
- Full-time
Mentor team with laboratory testing, collaborate with engineering teams and vendors, assess operational risks, and develop restoration strategies to return systems to stable operation.
Added 18 mins ago
A
Analyste/ingénieur principal ou principale en cybersécurité OT
Alithya
Pickering, ON
- Full-time
Lead cyber security Governance Risk and Compliance (GRC) activities, including:
Added 18 mins ago
W
Senior Mechanical Engineer
W3Global
Vancouver, BC
- $160,000 to $220,000 CAD / year
- Full-time
Our Vancouver office is growing quickly, and we're looking for a Senior Engineer to join us and lead the team.
Added 18 mins ago
Q
Product Solution Project Manage
Quectel
Richmond, BC
- Full-time
Establish and lead the closed-loop process for demand feasibility assessment, organizing all parties including SE, supply chain, manufacturing, and quality to conduct a comprehensive…
Added 18 mins ago
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Senior Consultant or Manager, Zero Trust Architecture
Deloitte
Toronto, ON
- Full-time
A college diploma in a technical discipline such as network engineering, computer systems technology or information technology. A university degree in a related field (computer science,…

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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