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Added 6 hours ago
AT
Senior DevSecOps Engineer
Aarorn Technologies Inc
Toronto, ON
- $50 CAD / hour
- Contract
Scripting skills using Python, Bash, or PowerShell.
Added 7 hours ago
V
IT Solution Support Engineer
Vanderlande
Vancouver, BC
- Full-time
Affinity with cybersecurity, vulnerability management, and patch management; scripting or automation experience using Python, Shell scripting, or PowerShell is an advantage.
Added 7 hours ago
V
IT Solution Support Engineer
Vanderlande
Vancouver, BC
- Full-time
Affinity with cybersecurity, vulnerability management, and patch management; scripting or automation experience using Python, Shell scripting, or PowerShell is an advantage.
Added 7 hours ago
CO
Application & Integration Technical Analyst
City of Saint John
Saint John, NB
- Full-time
Server-side languages: C#/.NET, Java, Python, PHP
Added 13 hours ago
SR
Senior Software Developer
Swim Recruiting
Ottawa, ON
- $100,000 to $130,000 CAD / year
- Contract
Our client is seeking a Senior Software Developer to design and develop secure, scalable backend applications supporting cybersecurity products. You'll collaborate with security, DevOps,…
Added 14 hours ago
MC
Embedded Software Architect, User Terminals (36137)
Myticas Consulting
Ottawa, ON
- Full-time
Ensure designs meet reliability, resiliency, and cybersecurity requirements.
Added 15 hours ago
M
Senior AI Engineer, Big Data & AI Solutions
Mastercard
Vancouver, BC
- Full-time
Proficiency in Python, PySpark, SQL, and distributed data processing.
Added 16 hours ago
Intern, Security Analyst - Winter Semester 2027
AlayaCare
Montreal, QC
Currently pursuing a Bachelor’s or advanced degree in Computer Science, Cybersecurity, Software Engineering, Computer Engineering, Information Technology, or a related technical field.
Added 16 hours ago
GM
Staff Software Test Engineering - ADAS Infrastructure Compliance
General Motors
Markham, ON
- Full-time
…controllers in the domains of Serial Communication, Diagnostics, Cybersecurity, OTA and vehicle safety. Testing can be conducted on open loop, close loop HIL benches or SIL platform. Test…
Added 17 hours ago
T
Data Scientist II
TD
Toronto, ON · Montreal, QC
- Full-time
Build reproducible and well-documented analytical workflows using Python, SQL, and enterprise data platforms, and support implementation and productionization with Engineering, FICO, MLOps,…
Added 17 hours ago
NB
Senior Director AI and Operations Engineering
National Bank of Canada
Montreal, QC
- Full-time
Strong knowledge of software development, Python, APIs, integration, and cloud architecture, as well as modern software engineering practices such as Git, CI/CD, testing, and monitoring.
Added 19 hours ago
CO
Application & Integration Technical Analyst
City of Saint John
Saint John, NB
- Full-time
Server-side languages: C#/.NET, Java, Python, PHP
Added 20 hours ago
R
GitHub Enterprise & DevOps Administrator
Raise
Burnaby, BC
- Full-time
Partner with Cybersecurity and Cloud/Application Security teams to tune scanning rules, establish exception and alert dismissal workflows, and report on security remediation metrics.
Added 20 hours ago
D
Senior Data Scientist - Fraud Detection
DataVisor
Vancouver, BC
- $120,000 to $150,000 CAD / year
- Full-time
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…
Added 21 hours ago
D
Senior Data Scientist - Fraud Detection
DataVisor
Calgary, AB
- $120,000 to $150,000 CAD / year
- Full-time
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…
Added 21 hours ago
D
Senior Data Scientist - Fraud Detection
DataVisor
Toronto, ON
- $120,000 to $150,000 CAD / year
- Full-time
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…
Added 23 hours ago
S
Enterprise Architect – AI, Data & Cloud
Synechron
Mississauga, ON
- $180,000 to $200,000 CAD / year
- Full-time
Added 23 hours ago
MF
Staff Software Engineer
Magnet Forensics
Canada
- Full-time
…architecture as you are shipping code, and you care deeply about developer experience, scalability, and performance. You’ve likely led modernization efforts, built shared frameworks or…
Added 23 hours ago
Sr Staff. Software Engineer
Kaseya Careers
Toronto, ON
Kaseya is the leading provider of AI-powered IT management and cybersecurity software, serving Managed Service Providers (MSPs) and internal IT organizations worldwide. Our comprehensive…
Added 1 day ago
CO
Application & Integration Technical Analyst
City of Saint John
Saint John, NB
- Full-time
Server-side languages: C#/.NET, Java, Python, PHP
Added 1 day ago
A
Cloud Security Analyst
ATB
Calgary, AB · Edmonton, AB
- Full-time
Experience with scripting or automation using Python, PowerShell, Bash, or similar technologies.
Added 1 day ago
A
Lead AI Security Developer
ATB
Calgary, AB · Edmonton, AB
- Full-time
As ATB’s next AI Security Developer, you'll help us build and operate the security capabilities needed to protect ATB's growing use of artificial intelligence. You'll develop and integrate…
Added 1 day ago
MC
EMS Engineer
MatchBox Consulting Group
Calgary, AB
- Full-time
Programming experience in C/C++, Perl, Python, and PowerShell.
Added 1 day ago
SL
Student, Software Engineer - Security (Winter 2027)
Sun Life
Toronto, ON · Sun Life Toronto One York
- Full-time
Currently pursuing a master’s degree in Computer Science, Software Engineering, Cybersecurity or a related technology discipline
Added 1 day ago
A
AI Associate Principal - Radioconjugate Discovery
AstraZeneca
Hamilton, ON · Canada – Hamilton – Longwood Road South
- Full-time

DataVisor

Senior Data Scientist - Fraud Detection

Calgary, AB, 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 behavioral, device, network, and transaction data, while applying agentic AI to automate analytical workflows. Lead investigations into complex 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 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
Hadoop
Cloud Platforms
Agentic AI
Data Analysis
Pattern Recognition
Hypothesis Testing
Technical Reporting
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
Production Machine Learning
Large-Scale Data Processing
Imbalanced Datasets
Risk Management
Fintech
Consumer Payments
Banking
SaaS
Anti-Money Laundering

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