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Added 14 mins ago
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Software Engineer Internship - Winter 2027
DataVisor
Remote, Canada
- $40,000 to $50,000 CAD / year
- Full-time
- Remote
DataVisor is the world’s leading AI-powered Fraud and Risk Platform that delivers the best overall detection coverage in the industry. With an open SaaS platform that supports easy…
Added 14 mins ago
Senior Quality Engineer (ETL testing)
Scotiabank
Toronto, ON
Google Cloud Platform (GCP): BigQuery, Cloud Composer
Added 14 mins ago
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Senior Developer, Dynamics 365 and Power Platform
Bank of Canada
Toronto, ON
- Full-time
…together to design, develop, and support our regulatory IT platform built on the Power…
Added 14 mins ago
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Technical Delivery Manager
Deloitte
Toronto, ON
- Full-time
3–6 years of experience in product management, technical program management, platform delivery or analytics, with a proven ability to balance competing priorities, make informed trade‑offs,…
Added 14 mins ago
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Digital Marketing & Ecommerce Manager (French Asset)
Bilingual Source
Oshawa, ON · Greater Oshawa Metropolitan Area
- $85,000 to $95,000 CAD / year
- Contract
Lead cross-functional digital projects, including platform enhancements, system integrations, testing, and implementation.
Added 14 mins ago
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Senior Identity Security Engineer
CPKC
Calgary, AB
- Full-time
Administer, maintain, upgrade, and optimize the CyberArk PAM platform, including Vault, CPM, PSM, PWA, PTA, account onboarding, credential management, password rotation, privileged session…
Added 14 mins ago
Associate Director, Activation
Kepler Group
Toronto, ON
Kepler’s Activation team is made up of forward-thinking media experts who bring deep platform expertise, analytical thinking, and a passion for driving performance across digital media…
Added 14 mins ago
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Sr AI Architect
Accenture
Ottawa, ON · Toronto, ON · Montreal, QC
- Full-time
Added 30 mins ago
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2027 Capital Markets, Global Markets, Winter Risk Solutions Group Analyst (8 Months)
Royal Bank of Canada
Toronto, ON
- Full-time
Added 30 mins ago
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Senior Manager, Social Content & Communities
Royal Bank of Canada
Toronto, ON
- Full-time
Translate complex financial and investment concepts into accessible, platform-first content, and manage digital communities within strict regulatory and compliance frameworks.
Added 30 mins ago
RB
Senior AI Engineer
Royal Bank of Canada
Toronto, ON
- Full-time
· Integrate with enterprise authentication, storage, and other platform services.
Added 30 mins ago
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Senior Treasury Liquidity Measurement Analyst
TD
Toronto, ON
- Full-time
Develop and enhance liquidity measurement processes and analytics used to calculate, interpret and explain reporting outcomes under approved approaches.
Added 30 mins ago
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Sales Operations Analyst - Payward Services
Kraken
Remote, Canada
- Full-time
- Remote
Payward Services is an enterprise infrastructure platform that enables companies to seamlessly integrate trading, payments, funding, and digital asset services through a single unified…
Added 30 mins ago
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Senior Director, Communications
Cogeco
Burlington, ON · Montreal, QC
- Full-time
…trust, uncover key stories to be told, and drive strategic platform and messaging work that connects internal mobilization with external brand…
Added 44 mins ago
Data Engineer - Snowflake, dbtCore/Cloud, AWS
Aviva
Markham, ON
…platforms to build robust data pipelines and systems that power analytics and AI initiatives. In this role, you will contribute to the design and implementation of data solutions that…
Added 44 mins ago
AM
Sr. Systems Design Engineer
Advanced Micro Devices, Inc
Markham, ON
- Full-time
Experience with board- or platform-level bring-up, validation, debugging, power sequencing, analysis, and optimization.
Added 45 mins ago
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Manager - Diagnostic Imaging
Ross Memorial Hospital
Kawartha Lakes, ON · Lindsay, ON
- Full-time
…key liaison between clinical operations and the shared EPIC platform, championing best practices in digital health across the…
Added 45 mins ago
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Multiple Automation Tester Role
Silverlink Technologies
Brampton, ON
- Contract
2. Automation Developer (Python & Cross-Platform SDET)
Added 45 mins ago
DC
Social Media Manager
Dimond Connect
Toronto, ON
- Full-time
…build relationships with followers, and turn emerging trends, platform updates, and community insights into relevant, on-brand…
Added 45 mins ago
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Senior Web Developer
Connexall
Toronto, ON
- Full-time
…JavaScript, website performance optimization, SEO best practices, analytics platforms, and marketing technology integrations. Working closely with Marketing, Sales, and IT Infrastructure…
Added 45 mins ago
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Data Modeler
Manpower
Calgary, AB
- Contract
SCM Data, Innovation & Analytics is seeking a Data Modeler with strong Databricks expertise to design, build, and operationalize scalable Supply Chain data products that deliver measurable…
Added 59 mins ago
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Senior Creative Director
Onni Group of Companies
Vancouver, BC
- Full-time
…ensuring a consistent, elevated brand voice while staying ahead of platform…
Added 59 mins ago
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Investment Team Intern, Summer 2027 (Co-op/Internship) - 4 months
BMO
Toronto, ON · FCP
- Full-time
…BMO Social Squad student-led activities, BMO Academy learning platform and access to various Employee Resource Groups to further develop your network within…
Added 59 mins ago
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Financial Analyst, Winter 2027 (Co-op/Internship) - 8 months
BMO
Toronto, ON · FCP
- Full-time
…Squad student-led activities, BMO Academy corporate learning platform, and access to various Employee Resource Groups to further develop your network within…
Added 1 hour ago
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Applied Researcher
eBay
Toronto, ON
- Full-time
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…

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.

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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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