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Added 5 mins ago
H
Bilingual Senior QA Analyst – Finance & Enterprise Performance Management (EPM)
Hays
Montreal, QC
- Contract
The QA Analyst will be responsible for planning, coordinating, and executing functional, integration, regression, and user acceptance testing for financial planning solutions, with…
Added 5 mins ago
PC
Senior Software Development Engineer in Test (SDET) / Quality Engineering Architect
Pyramid Consulting, Inc
Mississauga, ON
- $70 to $79 CAD / hour
- Contract
Formulate non-functional testing strategies using JMeter or Gatling for performance benchmarking.
Added 5 mins ago
D
React.js Engineer Toronto Canada/ Hybrid
Damcosoft
Toronto, ON
- Contract
Experience with React Hooks, functional components, and component lifecycle concepts.
Added 5 mins ago
T
Frontend React DEVELOPER || Canada
TestingXperts
Toronto, ON
- Contract
Strong hands-on experience with React.js, functional components, and React Hooks.
Added 5 mins ago
WS
Data Product Analyst
Wise Skulls
Toronto, ON
- Full-time
Experience collaborating with business stakeholders, data engineers, and cross-functional teams
Added 5 mins ago
Superintendent HSS Systems
BHP
Canada
Partner with operational and functional leaders to identify risks, evaluate opportunities, and implement effective risk management strategies.
Added 5 mins ago
Superintendent Security & Emergency Management
BHP
Canada
Partner with operational and functional leaders to ensure business continuity plans identify critical activities, dependencies, minimum operating requirements and recovery priorities…
Added 5 mins ago
Senior IT Business Analyst - SAP HR
L3Harris Technologies
Mirabel, QC
Gather business, functional, and non-functional requirements and propose suitable solutions;
Added 5 mins ago
7
Product Designer
7shifts
Remote, Canada
- $105,000 to $130,000 CAD / year
- Full-time
- Remote
3+ years as a product designer on cross-functional teams, ideally in SaaS
Added 5 mins ago
D
Senior Revenue Operations Manager (Remote Canada)
Directive
Remote, Canada
- Full-time
- Remote
…programs, including segmentation, build, QA, scheduling, A/B testing, and performance reporting. Protect deliverability and sender health through list hygiene, validation, and suppression…
Added 5 mins ago
D
Senior Marketing Operations Manager (Remote Canada)
Directive
Remote, Canada
- Full-time
- Remote
…programs, including segmentation, build, QA, scheduling, A/B testing, and performance reporting. Protect deliverability and sender health through list hygiene, validation, and suppression…
Added 5 mins ago
RB
Manager, Digital Product Marketing - RBC Direct Investing
Royal Bank of Canada
Toronto, ON
- Full-time
Communicate what’s working, what’s not, and what’s next to leadership and cross-functional partners with clarity and confidence
Added 20 mins ago
A
Senior Business Systems Analyst (Guidewire) - PolicyCenter & BillingCenter
Akkodis
Toronto, ON
- Contract
Prepare business requirements documents (BRDs), functional specifications, process flows, and user stories.
Added 20 mins ago
DC
Intermediate Electrical Designer/Engineer
Danaher Corporation
Concord, ON · CAN - Concord - AB Sciex LP
- $90,000 to $103,000 CAD / year
- Full-time
Develop and execute hardware qualification and functional test plans and procedures, including functional verification, to ensure new designs meet requirements, including stability and…
Added 20 mins ago
DC
Senior Electrical Engineer/Designer
Danaher Corporation
Concord, ON · CAN - Concord - AB Sciex LP
- $111,333 to $122,500 CAD / year
- Full-time
…root-cause analysis, subsystem integration, and risk-based testing to ensure performance, stability, safety, reliability, compliance, manufacturability, cost, and schedule objectives are…
Added 20 mins ago
R&D Associate Scientist
Daiya Foods Inc.
Burnaby, BC
Contribute to ingredient and supplier evaluations, including sourcing, testing, technical assessments, and validation of alternative materials or technologies.
Added 20 mins ago
T®
Datacenter Technician 2
TekWissen ®
Markham, ON
- $49 to $50 CAD / hour
- Contract
Familiarity with testing tools, methodologies, and defect tracking.
Added 20 mins ago
AW
Production Project Manager
Axine Water Technologies
Vancouver, BC
- $115,000 to $145,000 CAD / year
- Full-time
…preliminary engineering through fabrication and factory acceptance testing, and to build the production capability that lets us scale. You’ll run multiple projects at once, shape how our…
Added 20 mins ago
BG
Software Developer
Brandt Group of Companies
Regina, SK
- Full-time
…business requirements. This role collaborates with a cross-functional team (designers, programmers, database experts) and leverages AI-assisted development tools to optimize workflows,…
Added 20 mins ago
AI
SENIOR JAVA DEVELOPER – SPRING BOOT, MICROSERVICES, KAFKA & MONGODB
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Mississauga, ON
- Full-time
Participate in code reviews, unit testing, and defect resolution.
Added 35 mins ago
UO
Programmer Analyst II
University of British Columbia
Vancouver, BC · UBCV | The Leonard S. Klinck Building (LSK)
- $8,810.92 to $13,202.5 CAD / month
- Full-time
Implements customized tools and applications and prepares functional specifications and builds proof-of-concept test environments. Develops technical specifications for system development,…
Added 35 mins ago
UO
Programmer Analyst II
University of British Columbia
Vancouver, BC · UBCV | The Leonard S. Klinck Building (LSK)
- $8,810.92 to $13,202.5 CAD / month
- Full-time
Implements customized tools and applications and prepares functional specifications and builds proof-of-concept test environments. Develops technical specifications for system development,…
Added 35 mins ago
T
Software Engineer III
TD
Toronto, ON
- Full-time
Lead end-to-end solution architecture and delivery: define solution options, align cross-functional stakeholders, own execution and ensure production readiness for complex systems.
Added 50 mins ago
C
Director, IT Quality Assurance
CIBC
Toronto, ON
- Full-time
…business and clients. As CoE Team Lead, you’ll provide centralized testing standards, strategy and tooling across multiple PBB Domains, enabling a federated model through reusable…
Added 50 mins ago
Quality Engineer
OP Mobility
Windsor, ON
Audit poka‑yoke systems to ensure testing at the start of each shift.

DataVisor

Senior Data Scientist - Fraud Detection

Toronto, ON, Canada

$120,000 to $150,000 CAD / year · Full-time

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Job details

Pay: $120,000 to $150,000 CAD / year
Job type: Full-time
Apply by: Apr 25, 2027
Posting language: English
Posted: Oct 2, 2026

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

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More about this job

Responsibilities

Develop, productionize, and monitor fraud detection models and features using large-scale, complex data, and apply agentic AI to automate analytic 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, familiarity with large-scale data tools and cloud platforms, an investigative mindset, and excellent communication skills.

Skills

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

Benefits

Paid Time Off
Stock Options
Health Benefits

Visa sponsorship

Not detected in the job text

Keywords

Fraud Detection
Cybersecurity
Machine Learning
Logistic Regression
Gradient Boosting
Python
SQL
PySpark
Apache Spark
Hadoop
AWS
GCP
Azure
Agentic AI
Feature Engineering
Device Intelligence
Network Graphs
Transaction Records
Fraud Investigation
Pattern Synthesis
Hypothesis Testing
Imbalanced Datasets
Large-Scale Data Processing
Production Machine Learning
Risk Management
Fintech
Consumer Payments
Banking
SaaS
Marketplace Risk

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