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Added 13 mins ago
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Senior Electrical Engineer- Water
Stantec
Calgary, AB
- Full-time
We are currently seeking a passionate Senior Electrical Engineer to join our project delivery team: The same team that is tasked with delivering some of the most interesting and iconic…
Added 13 mins ago
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Personal Banker Trainee
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- Full-time
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Personal Banker Trainee
TD
Calgary, AB
- Full-time
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Engineer I
TD
Mississauga, ON · Toronto, ON
- Full-time
Work collaboratively with the data onboarding team and key stake holders, as they ingest data into the SIEM for the security use case development, dashboard and report creation.
Added 13 mins ago
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Senior Software Engineer, Search
Clio
Calgary, AB · Vancouver, BC · Toronto, ON
- Full-time
We are currently seeking a Senior Software Developer to join our rapidly growing Engineering team. This role is for someone who is passionate about building innovative solutions and being…
Added 28 mins ago
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Thanks for visiting our Job Board. Please review our open positions and apply to the positions that match your qualifications.
Evertz
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- Full-time
Validate hardware, firmware and software releases from the development teams
Added 28 mins ago
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Shipping and Freight Associate
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- $22 CAD / hour
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Junior Wellsite Geologists & Coring Specialists (Canada)
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Added 28 mins ago
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Senior Manager, Data Analytics
Walmart
Mississauga, ON
- Full-time
The Senior Manager, Data Analytics & AI Transformation is responsible for leading the development, maintenance and continuous improvement of data, analytics and AI-enabled tools that…
Added 29 mins ago
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Platform Lead - Security
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Added 43 mins ago
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Projects Land Representative
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Added 43 mins ago
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Product Owner - Digital Enablement
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- Full-time
…with clarity, thrives in ambiguity, and knows how to keep a team moving in the right…
Added 43 mins ago
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Support Specialist - AI Applications
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Added 57 mins ago
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Added 57 mins ago
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QA Specialist
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…the quality, reliability, usability, and security of Entrust software solutions used by government, enterprise, and financial services customers. You will work as part of a cross-functional…
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Principal Process Engineer - Power Projects
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Fluor is one of Canada's top employers and is recognized globally as a leader in the Engineering, Procurement, Construction, Fabrication, and Maintenance industry. Our focus on innovation…
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· Mentor a team by showcasing exceptional experiences in every customer interaction and achieving operational excellence, and personal development objectives.
Added 1 hour ago
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Added 1 hour ago
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Material Handler
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Added 1 hour ago
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Software Engineer Internship - Winter 2027
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Remote, Canada
- $40,000 to $50,000 CAD / year
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Added 1 hour ago
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ServiceNow Cyber Sales Executive (Senior Manager)
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Toronto, ON
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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 1 hour ago
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Senior Developer, Dynamics 365 and Power Platform
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Toronto, ON
- Full-time
We are seeking an innovative and skilled Senior Developers to join our new mandates team! The Bank of Canada is advancing technology solutions to support two new mandates: Stablecoin and…
Added 1 hour ago
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Technical Delivery Manager
Deloitte
Toronto, ON
- Full-time
Deloitte Claims is a fast-growing team within our Risk, Regulatory & Forensics practice. We manage class action settlements of all sizes across both private and public sectors.

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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