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Added 6 hours ago
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Investment Intern - GAM, Summer 2027 (Co-op/Internship) - 4 months
BMO
Toronto, ON · FCP
- Full-time
Join a dynamic and forward-thinking investment team as an intern and gain hands-on experience in one of several specialized areas: Exchange-Traded Funds (ETFs), Structured Solutions,…
Added 16 hours ago
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Plant Operations Coordinator Intern
Vylor
Chatham-Kent, ON · NA-CA-Chatham-Production
- Part-time
As a Plant Operations Intern at Vylor, you’ll be embedded at our Chatham Multi-Crop production facility, supporting key operational and improvement initiatives across corn, soybean, and…
Added 20 hours ago
BO
Canada | Toronto | Global Technology Summer Analyst - Software Engineer | 2027
Bank of America
Toronto, ON
- Volunteer
…cyber-security, risk and capital management and enterprise data management. Our mainframe environment is the third largest in the…
Added 20 hours ago
BO
Canada | Toronto | Global Technology Summer Analyst - Business Analyst | 2027
Bank of America
Toronto, ON
- Volunteer
…cyber-security, risk and capital management and enterprise data management. Our mainframe environment is the third largest in the…
Added 21 hours ago
TI
2027 Energy Engineering Intern
Trane Italia
Markham, ON
- Full-time
Our 12-week Summer internship program provides you with the opportunity to learn more about us while you collaborate with peers across North America. As an Energy Engineer Intern, you may…
Added 21 hours ago
TI
2027 Construction Project Management Intern
Trane Italia
Laval, QC
- Full-time
Added 21 hours ago
TI
2027 BrainBox AI Intern
Trane Italia
Montreal, QC
- Full-time
For Summer 2027, we are offering multiple AI internship opportunities in Montreal within three key focus areas:
Added 22 hours ago
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C-GE-230 - Stagiaire en conception de formation-EN
CAE
Montreal, QC
- Full-time
Date du stage : du 4 janvier au 23 avril 2027
Added 23 hours ago
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Sales Intern - GTA
Victaulic
Brampton, ON · Toronto, ON · Ontario - Toronto
- Full-time
Academic experience or coursework related to sales, marketing, business development, engineering, construction management or data analytics.
Added 23 hours ago
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Sales Intern - Edmonton, AB
Victaulic
AB · Alberta
- Full-time
Academic experience or coursework related to sales, marketing, business development, engineering, construction management or data analytics.
Added 23 hours ago
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Bilingual Sales Intern - Montreal, QC
Victaulic
Montreal, QC · Quebec, QC
- Full-time
Contrat à temps plein (de mai 2027 à août 2027)
Added 23 hours ago
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Sales Intern - Vancouver, BC
Victaulic
Vancouver, BC · British Columbia
- Full-time
Academic experience or coursework related to sales, marketing, business development, engineering, construction management or data analytics.
Added 1 day ago
BA
Engineering Intern - Summer 2027 (Vancouver, B.C.)
Brown and Caldwell
Vancouver, BC
- Full-time
The Engineering Intern - Summer 2027 (Vancouver, B.C.) role applies academic knowledge to real‑world technical challenges by supporting consulting teams on a variety of projects within an…
Added 1 day ago
AC
Student Intern - Natural Resources
Allianz Commercial
Toronto, ON
- $30 CAD / hour
- Full-time
Reporting to the Head of Energy and Construction Canada, the Intern will provide data entry and clerical support functions to the Natural Resources Underwriting Team.
Added 1 day ago
AC
Student Intern - Construction
Allianz Commercial
Toronto, ON
- $30 CAD / hour
- Full-time
Reporting to the Head of Energy and Construction Canada, the Intern will provide data entry and clerical support functions to the Construction Underwriting Team.
Added 1 day ago
CO
Intern, Data Scientist - Summer 2027
Capital One
Toronto, ON
- Full-time
161 Bay Street (93021), Canada, Toronto,Toronto, Ontario,Intern, Data Scientist - Summer 2027
Added 1 day ago
BP
Machine Learning Intern – Summer 2027
BNP Paribas
Montreal, QC
- Internship
Currently enrolled in a Master’s or PhD program at a Canadian university in a quantitative field such as AI/ML, data science, computer science, engineering, operations research, statistics,…
Added 1 day ago
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Student Field Safety
Ovintiv
Dawson Creek, BC · Grande Prairie, AB
- Full-time
As an intern you will spend the summer working closely with an experienced mentor and be assigned various other responsibilities intended to provide you with learning opportunities while…
Added 1 day ago
AI Engineer Intern (Masters)
Electronic Arts
Vancouver, BC
At this time, we are considering Masters students who will be enrolled in an accredited degree program in the summer of 2027, slated to graduate no earlier than December 2027. Applicants…
Added 2 days ago
S
Water/Wastewater Student Intern - Summer 2027
Stantec
Winnipeg, MB
- Full-time
As a Student Intern, you will work in a team environment and have exposure to water infrastructure projects which may include site development, water and wastewater plants, lagoons, pump…
Added 2 days ago
CO
Intern, Data Scientist - Summer 2027
Capital One
Toronto, ON
- Full-time
161 Bay Street (93021), Canada, Toronto,Toronto, Ontario,Intern, Data Scientist - Summer 2027
Added 2 days ago
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Product HSE Compliance Engineering Intern (Summer 2027, 16months)
Hitachi
Toronto, ON · (RSBU) Toronto
- $23 to $30 CAD / hour
- Full-time
Job Title: Product HSE Compliance Engineering Intern
Added 3 days ago
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Electrical Component Engineering Intern (Summer 2027, 16months)
Hitachi
Toronto, ON · (RSBU) Toronto
- $23 to $30 CAD / hour
- Full-time
Job Title: Electrical Component Engineering Intern
Added 5 days ago
UO
Mechanical/Structural Engineer Intern
University of Alaska Fairbanks Petroleum Engineering
Engineer, BC
- Volunteer
Space Dynamics Laboratory (SDL) is seeking a student in mechanical engineering to work with professional mechanical engineers and scientists to design, analyze, manufacture, assemble, and…
Added 5 days ago
UO
CVS: FPGA Electrical Engineer Intern
University of Alaska Fairbanks Petroleum Engineering
Engineer, BC
- Volunteer
…training workshops, networking opportunities, and a variety of summer events and activities. Interns will be paid a competitive monthly…

Stripe

PhD Data Scientist, Intern

Toronto, ON, Canada

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Job details

Posting language: English
Posted: Oct 1, 2026

Original job description

Who we are

About Stripe

Stripe is a technology company focused on improving the conditions for economic growth and prosperity. We build programmable financial infrastructure, rethinking from first principles how financial services should work, to make it easier and cheaper for any business to start and scale. More than 10 million businesses build on Stripe, spanning the economic frontier - from solo founders to established enterprises - united by a practical focus on growth. The most ambitious companies in the world use Stripe as core infrastructure to grow faster. They process trillions of dollars a year on Stripe, equivalent to around 1.6% of global GDP. While economic growth makes everyone better off, open markets also enable greater variety. When any business can easily serve a global customer base, the quality and diversity of products in the world increase, and craft and creativity are unleashed into the smallest niches. Our own growth is wholly contingent on the success of the businesses building on Stripe. We therefore invest back into our technology at an unusual rate. We make upgrades to our products every single day to deliver compounding gains to our customers. We maintain some of the most reliable APIs on the internet. We build entirely new pieces of financial infrastructure to enable new ideas. And our significant advances in risk and fraud infrastructure over many years are making the internet economy safer and more accessible.

Though people at Stripe don’t tend to take themselves seriously, Stripe is a fairly serious place: our customers are depending on us for their livelihoods. We admire ambition, intensity, curiosity, humility, and rigor. The most effective people become knowledgeable about many domains besides their own. Any company is an applied exercise in understanding some aspect of society or the market. In working with so many (especially the new and innovative ones), we think that Stripe is one of the very best places to learn about how the world works.

About the team

Our Data Science team partners deeply with teams across Stripe to ensure that our users, our products, and our business have the models, data products, and insights needed to make decisions and grow responsibly. We're looking for data scientists with a passion for analyzing data, building machine learning and statistical models, and running experiments to drive impact. Our Fraud, Losses, and Financial Crime Data Science team builds the models and data products that protect Stripe and its users from fraud, account takeover, and financial crime. We own the full fraud and loss modeling stack - from account takeover detection and card fraud classification to merchant-level loss estimation, unsupervised anomaly detection, and financial crime risk modeling. We partner with Fraud Engineering, Financial Crimes Engineering, and Risk Operations to bring these systems into production and ensure they have measurable impact on Stripe's financial integrity and user trust.

What you’ll do

As an intern at Stripe you’ll work on projects across our stack that directly impact the way millions of businesses operate. You’ll own problems end to end with the support of your manager and teammates. It’s an opportunity to work alongside some of the most creative and technically rigorous data analysts and scientists in the industry. You'll partner deeply with teams across Stripe to ensure that our users, our products, and our business have the models, data products, and insights needed to make decisions and grow responsibly. You'll work closely with partners to extract insights from the rich and complex data at Stripe. You'll build metrics, scalable data pipelines, dashboards, and reports to inform and run the business. You'll deliver actionable business recommendations through analyses and data storytelling.

Our internship program is competitive and the expectations are high.

Responsibilities

Applying probability distributions, statistical inference, and hypothesis testing to quantify uncertainty and evaluate business outcomes
Using Python or R for data analysis, data processing, visualizations, statistical modeling, machine learning, predictive analytics, automation, and implementing causal inference and experimental analyses
Building, training, and evaluating predictive models across regression and classification tasks for bias-variance trade-offs and model selection
Modeling temporal dependencies, seasonality, and trend decomposition to generate and evaluate time-series predictions
Identifying structural patterns, clusters, and outliers in unlabeled data
Deploying models in production and adjusting model thresholds to improve performance
Designing, running, and analyzing complex experiments and leveraging causal inference designs
Using SQL and Spark to create, transform, and analyze large datasets
Learn quickly by asking great questions, finding how to work with your mentor and teammates effectively, and communicating the status of your work clearly
Present your work to the Data Science team, partner teams, and fellow interns.

Who you are

Ambitious builder: You’re energized by building solutions without clear precedent and solving problems with far-reaching consequences. Successful Stripes are deeply curious, and prefer the joy of discovery to the comfort of certainty.
Rigorous thinker: You appreciate that things worth doing are rarely simple. You enjoy working on problems that have never been tackled before.
Adaptable problem solver: You adapt quickly and treat obstacles as opportunities. At Stripe we embrace kindness while encouraging Stripes to take measured risks and act boldly, even in the absence of consensus.

Minimum requirements

Enrolled in a quantitative PhD program (e.g. Data Science, Statistics, Economics, Mathematics, etc.) with the expectation of graduating in December 2027 or spring/summer 2028
Experience with SQL and a scientific computing language (such as Python, R, etc.)
Proficiency with AI tools to accelerate model development, analysis, and coding
Experience communicating and collaborating with multidisciplinary stakeholders in a team environment

Preferred qualifications

Experience writing and debugging data pipelines
Demonstrated ability to evaluate and receive feedback from mentors, peers, and stakeholders via experience from previous internships or other multi-person projects
Ability to learn new systems and form an understanding of those systems, through independent research and working with a mentor and subject matter experts

Apply About employer

More about this job

Responsibilities

The intern will build and deploy machine learning models and data products to protect Stripe from fraud and financial crime. They will also partner with cross-functional teams to extract insights, build scalable data pipelines, and deliver actionable business recommendations.

Requirements

Candidates must be enrolled in a quantitative PhD program with an expected graduation date in 2027 or 2028. Proficiency in SQL and a scientific computing language like Python or R is required.

Skills

Python
R
SQL
Spark
Machine Learning
Statistical Modeling
Predictive Analytics
Causal Inference
Experimental Design
Data Pipelines
Time-series Analysis
Anomaly Detection
Data Visualization
Hypothesis Testing
Probability Distributions

Visa sponsorship

Not detected in the job text

Keywords

Data Science
Machine Learning
Python
R
SQL
Spark
Fraud Detection
Financial Crime
Statistical Inference
Predictive Modeling
Causal Inference
Time-series Analysis
Data Pipelines
Anomaly Detection
Experimental Design
Data Storytelling
Risk Modeling
Financial Infrastructure
Quantitative Analysis
Regression
Classification
Bias-variance Trade-off
Automation
Dashboarding
Data Processing

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