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Added 13 mins ago
Architectural Technologist – Stops & TPSS
SYSTRA
Toronto, ON
Full-time
The Architectural Designer (Revit) will support the Stops & TPSS scope by producing and coordinating architectural documentation for transit facilities. The role focuses on preparing…
Added 13 mins ago
Lead Highway Design Technician
WSP in Canada
BC · British Columbia, Canada
Full-time
Coordinate multidisciplinary design inputs to support successful project delivery from planning through construction.
Added 13 mins ago
Assistant Superintendent, Geology (Fly-In Fly-Out)
Agnico Eagle Mines Limited
Rankin Inlet, NU
Full-time
Provide and coordinate technical support in geology to operations for the open pit and underground development.
Added 13 mins ago
Senior Financial Planning & Reporting Analyst
Agnico Eagle Mines Limited
Kirkland Lake, ON
Full-time
…Eagle prioritizes the hiring of Members from these Nations. To support this commitment, members from these Nations seeking employment opportunities at the Macassa Mine are encouraged to…
Added 13 mins ago
Sales and Business Development Associate
MW Canada
Kitchener, ON
Full-time
…ability to develop and manufacture products from concept through…
Added 13 mins ago
Communications Specialist
Legislative Assembly of Ontario / Assemblée législative de l’Ontario
Toronto, ON
Full-time
Liaise with Office mandate areas to develop high quality, accurate communications products and support the design, production and publication of these products.
Added 13 mins ago
Energy and Decarbonization Engineer
Agnico Eagle Mines Limited
Rouyn-Noranda, QC
Full-time
…responsible for evaluating technologies related to the efficient production and use of energy and decarbonization, as well as monitoring the energy needs of operations to ensure that they…
Added 13 mins ago
Lead Highway Design Technician
WSP in Canada
BC · British Columbia, Canada
Full-time
Coordinate multidisciplinary design inputs to support successful project delivery from planning through construction.
Added 13 mins ago
Mechanical Engineer, Robotics
Sielo Robotics
Ottawa, ON
Full-time
Sielo Robotics is building Canadian robots to help people with severe disabilities care for themselves and help North American manufacturers expand their production.
Added 13 mins ago
Writer and Content Creator, Creative Services and Special Projects - Marketing and Communications - Appendix-D
Humber College
Toronto, ON
Full-time
…development, flow and completion of copywriting and supporting the production of multi-media content for projects within the department for external and internal audiences. The incumbent is…
Added 13 mins ago
Mechanical Engineering Technologist
Lambton Conveyor Limited
Chatham-Kent, ON · Wallaceburg, ON
$57,500 to $65,000 CAD / year
Full-time
…will collaborate with all levels within the organization to support design and production initiatives. Responsibilities for this position…
Added 13 mins ago
Analyste applicatif (XTP optionnel)
Astek
Montreal, QC · Greater Montreal Metropolitan Area
Full-time
Expérience en support applicatif ou support de production
Added 13 mins ago
Microsoft Power Platform Developer
LanceSoft, Inc.
Montreal, QC
$60 to $62 CAD / hour
Contract
Create technical documentation and provide production support.
Added 13 mins ago
Sr. Engineer - Electromagnetic Compatibility - Aerospace | Exp: 8+ Yeas | Dorval, QC
TechOrient Technology Services
Dorval, QC
Full-time
Help drive the resolution of electromagnetic related issues to support EMC certification and sustaining activities to support production and in-service.
Added 13 mins ago
[Dungeons & Dragons PC-Console] Artiste de concept intermédiaire - Intermediate Concept Artist
Gameloft Montreal
Montreal, QC
Full-time
Créer des concepts pour la production quotidienne d'assets artistiques en jeu
Added 13 mins ago
Spécialiste en développement de produits alimentaires / Food Product Development Specialist
Natursource Inc.
Dorval, QC
Full-time
Support the transition of products to full-scale production.
Added 13 mins ago
Staff Software Engineer – AI
Thomson Reuters
Toronto, ON
Full-time
…will be a hands-on technical leader building and delivering production platform and AI capabilities. This role requires strong production C#/.NET engineering experience, along with Python…
Added 13 mins ago
Senior Manager, Bid & Proposal
CS GROUP
Montreal, QC
Full-time
…and capture planning through proposal submission, negotiation support, and lessons learned. The successful candidate will turn complex customer requirements into clear, compliant,…
Added 13 mins ago
Communications Operations Associate
Grand Challenges Canada
Toronto, ON
Full-time
· Support key moments and events: Help plan and coordinate major events, announces, launches, convenings, meetings and other priority moments, making sure that communications, logistics,…
Added 13 mins ago
Creative Services Manager
UBC Properties Trust
Vancouver, BC
Full-time
The Marketing team leads marketing activities across UBCPT, including support for its two property management divisions. UBCPT’s diverse work at the Point Grey and Okanagan campuses…
Added 13 mins ago
Administration Assistant- Scripted (English Services)
Radio-Canada
Toronto, ON
Full-time
Reporting directly to the Directors Development & Current Production in the Scripted Department. You will plan, organize, coordinate and control all administrative procedures, activities…
Added 13 mins ago
Business Systems & Technology Lead
Robertson & Company Ltd.
Uxbridge, ON
$90,000 to $120,000 CAD / year
Full-time
Support the organization's adoption of AI and automation, including applications within production planning, scheduling and operational workflows.
Added 13 mins ago
The Burger's Priest - Crew Member
The Burger's Priest
Toronto, ON · North York, ON
Full-time
Adopt a “clean as you go” mentality and adhere to all sanitation/food production policies
Added 15 mins ago
Senior Full Stack Engineer - Chief Technology Officer (CTO) - Platform Engineer
HSBC Global Services Limited
Toronto, ON
Run production support rituals including incident response problem management post-incident reviews (PIRs) retrospectives and stand-ups and ensure root causes are fixed
Added 15 mins ago
Food Production Manager- PREM- Milton
Civeo
Ottawa, ON
Full-time
The Cook Chill Food Production Center is located on the grounds of the Maplehurst Correctional Facility; however, Cook Chill operates as an independent production facility and is separate…

Stripe

PhD Data Scientist, Intern

Toronto, ON, Canada

Posting language: English
Posted: Oct 1, 2026

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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

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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

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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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