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Added 11 mins ago
EI
User Experience Designer
ExcelGens, Inc.
Montreal, QC
- Contract
Experience with automation systems and related technologies.
Added 11 mins ago
HT
Financial Manager - PLM (Product Line Mgmt)
Husky Technologies
Bolton, ON
- Full-time
We are looking for a high-impact Finance Manager FP&A to act as a true business partner to our Product Line leadership team.
Added 11 mins ago
HT
Director, Finance (CSM)
Husky Technologies
Bolton, ON
- Full-time
The Finance Director serves as a strategic business partner to the Leadership Team in support of Husky’s Global Service Business and Customer Success Management strategy. This role provides…
Added 11 mins ago
C
BAS Technician - 14/14
Convergint
Fort McMurray, AB
- Full-time
Maintain BAS automation network and understand development concepts. Work with the client on adding new assets to their business LAN.
Added 11 mins ago
T
Engineer I
TD
Toronto, ON
- Full-time
Specialized knowledge of business applications, systems, networks, innovation, design activities, best practices, overall business standards.
Added 11 mins ago
C
Service Account Executive - Building Automation Systems
Convergint
Calgary, AB
- Full-time
…driven and forward-thinking Service Account Executive - Building Automation Systems to join our amazing culture in Calgary, AB. In this role, you will prospect and cultivate new…
Added 40 mins ago
R
Data Scientist
Raise
Calgary, AB
- Full-time
Strong experience building workflow automation and low-code/no-code business solutions.
Added 41 mins ago
R
Manager, Sales – Quebec City and Regions (Media Solution) (Telework/Hybrid)
Radio-Canada
Quebec, QC
- Full-time
Oversee governance and optimal use of business tools and systems (Salesforce, On Air, Workday).
Added 41 mins ago
AE
Supply Chain Analystics Specialist (Temporary Position)
Agnico Eagle Mines Limited
Rouyn-Noranda, QC
- Full-time
…they express who we are, and they have helped us succeed in business for over 60 years. We value you – your unique set of skills and experience. We value your willingness to build those…
Added 41 mins ago
MC
Senior QA Engineer III – Automation | Banking | API | Kafka | ETL (35729)
Myticas Consulting
Ottawa, ON
- Full-time
You are a hands-on senior QA automation engineer who can go beyond executing existing test scripts. You can design frameworks, understand complex backend integrations, trace data across…
Added 41 mins ago
X
Digital Sales Engineer / Market Development Manager-Automation-Flygt
Xylem
Montreal, QC
- Full-time
Minimum of five (5) years of experience in automation and control systems, preferably in a technical environment.
Added 41 mins ago
ES
Associate Development Manager - FC
EA SPORTS
Vancouver, BC
- Full-time
Maintain up-to-date trackers and ensure information remains accurate across relevant systems.
Added 41 mins ago
VS
Senior Machine Learning Engineer
vTech Solution Canada
Toronto, ON
- Contract
…establish reusable deployment patterns, tooling, monitoring, and automation that enable AI solutions to move reliably from development into production and scale across the…
Added 41 mins ago
E
QA Specialist
Entrust
Ottawa, ON
- Full-time
Entrust's values are a cornerstone of who we are, our future business growth and how our people grow through it. We model our values by demonstrating that Customer Trust Is Earned, moving…
Added 41 mins ago
FA
Senior Accountant
FANUC America Corporation
Mississauga, ON
- $68,000 to $95,000 CAD / year
…would directly support project teams, finance leadership, and business operations by providing financial insights and maintaining the integrity of project and accounting…
Added 41 mins ago
HA
Intern Bachelors Systems Eng
Honeywell Aerospace
Ottawa, ON · Kanata, ON
- Full-time
The successful candidate will join the Honeywell Aerospace SATCOM System Integration and Test Team as a Systems Engineer Intern. In this role, the primary responsibility will be to…
Added 41 mins ago
C
Java/Spring Boot Developer - Vice President
Citi
Mississauga, ON
- Full-time
Join the Equities Middle Office Technology team as a Senior Java/Spring Boot Developer, where you will be a key contributor for managing complex BAU deliverables while driving strategic…
Added 56 mins ago
VI
Manager, Yardi and Financial Systems
Vital Infrastructure Property Trust
Toronto, ON
- $110,000 to $130,000 CAD / year
- Full-time
The Manager will be part of the Financial Systems team within Corporate Finance, reporting to the Director, Financial Systems and Data. Financial Systems is responsible for the business…
Added 1 hour ago
Director of Firmware Engineering
Celero Communications, Inc.
Ottawa, ON
…interoperability testing, and qualification, and work with systems, architecture, and product management to turn customer requirements into firmware…
Added 1 hour 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 1 hour ago
Senior Quality Engineer (ETL testing)
Scotiabank
Toronto, ON
Collaborate with developers, business analysts, data engineers, and other stakeholders to identify, troubleshoot, and resolve data quality issues.
Added 1 hour ago
D
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 1 hour ago
A
Ingénieur principal ou ingénieure principale / responsable technique
Alithya
Pickering, ON
- Full-time
…developing solutions leveraging emerging technologies, including automation, cybersecurity, artificial intelligence, digital twins, and advanced visualization. Your leadership will help…
Added 1 hour ago
BS
Digital Marketing & Ecommerce Manager (French Asset)
Bilingual Source
Oshawa, ON · Greater Oshawa Metropolitan Area
- $85,000 to $95,000 CAD / year
- Contract
Bachelor's degree in Marketing, Business Administration, eCommerce, Information Systems, or a related discipline.
Added 1 hour ago
C
Senior Identity Security Engineer
CPKC
Calgary, AB
- Full-time
…organization's identity security strategy, helping protect critical systems through advanced CyberArk PAM, IAM, IGA, and PKI capabilities. This role offers the opportunity to work with…

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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