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Added 3 mins ago
SN
Manager, Facilities Management
Starlim North America
London, ON
- Full-time
…facility-related systems in support of a 24/7 manufacturing operation. Lead the Facility Cleaning and Facility Technical teams and provide hands-on technical leadership, supported by a…
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
SCM Category Manager, Pipeline Construction, Pacific Link
Trans Mountain
Calgary, AB
Coordinate commercial requirements with Engineering, Construction, Operations and Quality teams to ensure alignment with technical specifications and project execution requirements.
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
AI
Teamcenter Compliance Architect
Aptino, Inc.
Canada
- Contract
We are looking for an experienced Teamcenter Compliance Architect to lead the architecture and design of enterprise product and materials compliance solutions. The ideal candidate will have…
Added 18 mins ago
RC
ServiceNow Architect
RSM Canada
Toronto, ON
- Full-time
Lead the architecture and technical design of complex ServiceNow implementations, enhancements, integrations, and transformation initiatives.
Added 18 mins ago
KB
Procurement Coordinator
KOLER BUILDERS
ON · Ontario, Canada
- Full-time
Sourcing & Purchasing Support: Distribute RFQs, log vendor quotations, assist with comparison sheets, prepare draft purchase orders, and track lead times and shipping dates.
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
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
I
Business Analyst
isgSearch
Toronto, ON · Greater Toronto Area, Canada
- Contract
…candidate will work closely with business stakeholders and technical teams to translate business needs into functional requirements and effective technology…
Added 18 mins ago
BH
Specialist Engineer (Grid Telecom Operations)
BC Hydro
BC · Fraser Valley, BC
- Full-time
Lead and facilitate cross-functional workshops, technical reviews, risk assessments, and working groups focused on operational excellence and system reliability.
Added 18 mins ago
W
Senior Mechanical Engineer
W3Global
Vancouver, BC
- $160,000 to $220,000 CAD / year
- Full-time
This is a player-coach seat, not a pure design chair. You'd own the technical work, lead the team, and grow the book of business, with a fast track to Principal Engineer for the right…
Added 18 mins ago
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Product Solution Project Manage
Quectel
Richmond, BC
- Full-time
Lead the proposal presentation and customer defense, clearly explaining the technical value and cost advantages, and achieving the transformation from "technical solution" to "commercial…
Added 18 mins ago
FC
Principal Designer- Material Handling
Fluor Corporation
Calgary, AB
- Full-time
Operating under detailed instructions and technical guidance from senior engineers, the purpose of this position is to provide the essential technical knowledge and perform the work listed.…
Added 18 mins ago
S
Engineering Specialist, Facilities (Compression)
SaskEnergy
Regina, SK
- Full-time
Lead technical engagement with compressor package suppliers and engineering service providers, including supplier qualification, bid evaluation, design reviews, shop testing, performance…
Added 18 mins ago
A
Sr AI Architect
Accenture
Ottawa, ON · Toronto, ON · Montreal, QC
- Full-time
In this role, you will lead and integrate the work of multiple domain architects and subject matter specialists - across areas such as agentic application design, AI security and trust, AI…
Added 18 mins ago
LG
Systems Integration Manager
Lotus Group
AB · Edmonton, AB
- Full-time
…the primary connection between the company and its customer engineering teams, overseeing the co-development and execution of large-array and custom equipment integration projects. This…
Added 18 mins ago
FC
Supervisor, Material Management
Fluor Corporation
Vancouver, BC
- Full-time
This position serves as a Project Material Manager on small Engineering, Procurement, Fabrication, and Construction (EPFC) projects or may serve as a regional lead for non-project…
Added 18 mins ago
B
SSV Electrical Design Technician
BRP
Valcourt, QC
- Full-time
We are looking for an electrical design technician for the ORV Engineering team who will report to the Lead Designer, Vehicle Engineering. In this role, you will play a key role in the…
Added 34 mins ago
K
Sales Operations Analyst - Payward Services
Kraken
Remote, Canada
- Full-time
- Remote
…in the industry, built to advance an open, global financial…
Added 49 mins ago
ST
Fabricator
Sinclair Technologies
Aurora, ON
- $17.95 to $21.6 CAD / hour
- Full-time
…to expand our product offerings and offer industry-leading technical…
Added 49 mins ago
H
Principal Engineer
Hays
Sudbury, ON
- Full-time
You will collaborate closely with mine technical services, operations, safety, procurement, suppliers, and other stakeholders to coordinate backfill schedules, optimize system performance,…
Added 1 hour ago
TT
Systems Design Engineer III
Teledyne Technologies Incorporated
Waterloo, ON · Canada - Waterloo, ON
- Full-time
Join Teledyne’s Semiconductor Engineering team and help turn advanced imaging technology into reliable, manufacturable products. As a Design Specialist in Systems Engineering, you’ll lead…

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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