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Added 11 mins ago
Directeur des technologies
Daily tous les jours
Montreal, QC
Full-time
Expérience concrète dans la conduite d’un produit matériel du prototype à la production à grande échelle (conception de PCB, micrologiciels, boîtiers, bancs d’essai et chaîne…
Added 11 mins ago
Full Time Baker
COBS Bread
Calgary, AB
Full-time
Through development programs that provide you with opportunities to lead teams, and take charge when it comes to production, marketing, and sales, we're invested in offering you the…
Added 11 mins ago
Sales Operations Coordinator
The Headhunters Recruitment
AB · Edmonton, AB
Full-time
Process customer orders from receipt through production, shipment, and invoicing
Added 11 mins ago
Senior Proposal Specialist
Zeidler Architecture
Calgary, AB
$65,000 to $100,000 CAD / year
Full-time
…exceptional writing and coordination skills, and the ability to lead compelling submissions from opportunity through to final…
Added 12 mins ago
Analyst, Engineering Services - Project Engineer
Aspire Bakeries
Hamilton, ON · Ancaster, ON
…a key part in delivering strategic investments that enhance production efficiency, reduce downtime, and support long-term plant growth.This role requires you to be onsite in Brantford, ON…
Added 12 mins ago
Territory Sales Representative (South Central Alberta)
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Added 12 mins ago
Corporate Development & Market Strategy Lead
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Remote, Canada
Full-time · Remote
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Added 12 mins ago
Part-Time Baker Truro, Nova Scotia
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Truro, NS
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Added 12 mins ago
Oracle Cloud Technical Architect
Nuvei
Remote, Canada
Remote
Lead architecture checkpoints during build and testing, approve deviations from the agreed standards, and authorize the technical transition of each interface into production.
Added 12 mins ago
Project Electrical Engineer - Advanced Power Generation
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Calgary, AB
Functions as a technical specialist or in a lead role. With minimal supervision, applies advanced engineering techniques and analyses. Continues building on knowledge to begin developing…
Added 12 mins ago
Coordinator, Logistics (CAN)
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Added 12 mins ago
Project Manager (CRM)
VML
Montreal, QC
…cutting-edge media intelligence and data solutions, creativity, production, enterprise solutions and expert strategic…
Added 12 mins ago
Project Manager (CRM)
VML Canada (English)
Montreal, QC
…and data solutions, world-class creativity, next-generation production, transformative enterprise solutions and expert strategic counsel in a single company – powered by exceptional talent…
Added 12 mins ago
Administrator, Application Governance
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Toronto, ON
Integrity. We lead by example, with humility and courage.
Added 12 mins ago
Principal Analog Mixed-Signal Design Engineer
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Added 27 mins ago
Head of Legal - Burnaby, BC
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Burnaby, BC
Lead continuous improvement in legal operations and governance, including matter management, company secretarial arrangements, contract production, approval, execution and storage,…
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$115,000 to $149,000 CAD / year
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$85,000 to $165,000 CAD / year
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Lead, engage, and develop production teams, leveraging experience to make sound decisions on critical production issues.
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System Analyst
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Calgary, AB · AB · Vancouver, BC · Toronto, ON · Edmonton, Alberta
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assist configuration with guidance on how the deployment (or migration) of new system updates into the production environment should occur.
Added 27 mins ago
Western Canada Aquatic Discipline Lead
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$120,000 to $160,000 CAD / year
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AECOM Burnaby is seeking an experienced Aquatic Discipline Lead for Western Canada to support our EPP Ecology and Permitting team. In this role, you will be the go-to expert for aquatic…
Added 27 mins ago
Chef Manager (Campus Residence Dining - evenings & weekends)
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We're looking for a hands-on Chef Manager to lead a dynamic university campus food service operation. This is more than running a kitchen. You'll help shape the campus dining experience…
Added 27 mins ago
Operator, Packaging
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Added 42 mins ago
Part-Time Baker Truro, Nova Scotia
COBS Bread
Truro, NS
Part-time
As a baker at COBS Bread, you will lead our freshness commitment. we celebrate fresh. Bakers start their days with an empty bakery but when they leave- it's filled with the artisan bread…
Added 42 mins ago
Sr. Technical Support Analyst
Apptoza Inc.
Toronto, ON
Contract
Lead the investigation and analysis of application operational failures through to resolution| and drive follow-up for root cause identification.

DataVisor

Senior Data Scientist - Fraud Detection

Toronto, ON, Canada

Pay: $120,000 to $150,000 CAD / year
Job type: Full-time
Apply by: Mar 22, 2027
Posting language: English
Posted: Sep 23, 2026

Apply About employer

Applications open in a new tab.

Original job description

About DataVisor

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 consolidation and enrichment of any data, DataVisor's fraud and anti-money laundering (AML) solutions scale infinitely and enable organizations to act on fast-evolving fraud and money laundering activities in real time. Its patented unsupervised machine learning technology, advanced device intelligence, powerful decision engine, and investigation tools work together to provide significant performance lift from day one. DataVisor's platform is architected to support multiple use cases across different business units flexibly, dramatically lowering total cost of ownership compared to legacy point solutions. DataVisor is recognized as an industry leader and has been adopted by many Fortune 500 companies across the globe.

Our award-winning software platform is powered by a team of world-class experts in big data, machine learning, security, and scalable infrastructure. Our culture is open, positive, collaborative, and results-driven. Come join us!

Position Overview

We are looking for a Senior-Level Data Scientist to join our Fraud Detection team - someone equally comfortable building production ML models and getting hands-on with individual fraud cases. This is a dual-track role: you'll develop the machine learning systems that catch fraud at scale, and you'll personally lead investigations into how specific fraud attacks happened, reconstructing attacker behavior and turning case-level findings into trend reports and detection improvements. This is a great opportunity to grow your skills in a fast-paced, data-driven environment while making a real, visible impact in the fight against fraud.

Key Responsibilities

Machine Learning & Model Development

End-to-End Model Development: Lead the full lifecycle of fraud detection features and models, from ideation and data exploration to prototyping, productionizing, and monitoring
Advanced Feature Engineering: Develop highly predictive features from complex, large-scale, multi-dimensional data, including user behavior, device intelligence, network graphs, and transaction records
Large-Scale Data Processing: Work with massive, noisy, and imbalanced datasets (billions of events) using tools like Spark, SQL, and our proprietary AI platform
Agentic AI & Automation: Leverage agentic AI to automate analytic pipelines and develop reusable skill tools that accelerate fraud investigation, feature generation, and reporting workflows

Live Fraud Investigation & Reporting

Lead investigations into complex fraud cases across identities, accounts, devices, and transaction surfaces. Reconstruct attacker sequences and hypothesize actor intent and tooling
Produce clear, evidence-backed technical reports and case studies for product, engineering, operations, legal, and executive stakeholders
Generate fraud trend reports for customers, synthesizing case-level findings and aggregate data into narratives customers can act on

Requirements

Qualifications

Master's or PhD in Computer Science, Statistics, Mathematics, or a related quantitative field.

3+ years of applied experience in fraud detection, cybersecurity, or a related adversarial/high-velocity risk domain (fintech, consumer payments, banking, SaaS, marketplace risk, or security research)
Solid understanding of both classic machine learning models (Logistic Regression, Gradient Boosting, etc.)
Hands-on experience with the machine learning lifecycle in a production environment
Investigator mindset: demonstrated skill in pattern synthesis, hypothesis testing, and triaging signal from noise in ambiguous, adversarial cases - not just building and monitoring models
Strong programming skills in Python (must-have) and proficiency with SQL; experience with PySpark is a significant plus
Experience with large-scale data tools (Spark, Hadoop, etc.) and cloud platforms (AWS, GCP, Azure)
Excellent communication skills - able to explain complex, ambiguous, or technical behavior clearly to both technical and non-technical audiences, including customers and executives
Professional proficiency in written and spoken English, with the ability to collaborate effectively in a global, cross-functional team

Benefits

Base salary range: $120,000-$150,000, commensurate with experience
PTO, Stock Options, Health Benefits

Apply About employer

More about this job

Responsibilities

Develop, productionize, and monitor fraud detection models and features using large-scale, complex data, while applying agentic AI to automate analysis and investigation workflows. Lead investigations into fraud cases, reconstruct attacker behavior, and produce evidence-based case studies and customer trend reports.

Requirements

Requires a master's or PhD in a quantitative field and at least three years of applied experience in fraud detection, cybersecurity, or a related adversarial risk domain. Candidates need production machine learning experience, strong Python and SQL skills, large-scale data and cloud platform familiarity, an investigative mindset, and excellent communication skills.

Skills

Fraud Detection
Machine Learning
Fraud Investigation
Feature Engineering
Python
SQL
PySpark
Apache Spark
Large-Scale Data Processing
Agentic AI
Data Analysis
Pattern Recognition
Hypothesis Testing
Technical Reporting
Cloud Platforms
Device Intelligence

Benefits

Paid Time Off
Stock Options
Health Benefits

Visa sponsorship

Not detected in the job text

Keywords

Fraud Detection
Fraud Risk
Cybersecurity
Machine Learning
Logistic Regression
Gradient Boosting
Feature Engineering
Python
SQL
PySpark
Apache Spark
Hadoop
AWS
Google Cloud Platform
Microsoft Azure
Agentic AI
Automation
Device Intelligence
Network Graphs
Transaction Records
Large-Scale Data Processing
Imbalanced Datasets
Fraud Investigation
Pattern Synthesis
Hypothesis Testing
Attacker Behavior
Technical Reporting
Trend Reporting
Fintech
Anti-Money Laundering

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