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Added 5 mins ago
FC
Senior DevSecOps Engineer
Fintel Connect
Vancouver, BC
- Full-time
…and continuous improvement of cloud security, infrastructure automation, platform reliability, and DevSecOps practices within AWS. You will proactively identify and remediate security…
Added 5 mins ago
B
Sr. Applied AI Scientist – Generative AI & Agentic Systems
BMO
Toronto, ON · FCP
- Full-time
Lead research and development of new methodologies, testing approaches, and standards for validating emerging Generative AI technologies.
Added 5 mins ago
M
Senior AI Engineer, Big Data & AI Solutions
Mastercard
Vancouver, BC
- Full-time
Knowledge of MLOps concepts including testing, automation, CI/CD, and version control.
Added 20 mins ago
RI
IOS mobile testing
Raas Infotek
Vancouver, BC
- Contract
Position : SDET/Automation – Mobility (IOS Application testing)
Added 20 mins ago
K
Javascript Developer
Kelly
Toronto, ON
- Contract
Contribute to service modernization, CI/CD automation, and overall application architecture.
Added 20 mins ago
A
Security GRC Specialist
Aviso
Toronto, ON
- $105,000 to $125,000 CAD / year
- Full-time
Conduct periodic control testing including design and operating effectiveness
Added 35 mins ago
K
Software Engineer in Test
Kelly
Mississauga, ON
- Contract
…low-latency trading platforms. The role involves designing scalable automation frameworks, integrating AI-driven testing, implementing performance engineering, and establishing automated…
Added 35 mins ago
AC
Test Engineer
Amaris Consulting | Part of Mantu
ON · Ontario, Canada
- Full-time
We are seeking a Test Engineer – P&C Relay to execute factory and site testing, configuration, and commissioning of protection and control systems and multi-function protective relays…
Added 35 mins ago
KS
Engineering Manager - Industrial Automation & Power Systems
Kinetic Search Group
Vancouver, BC · Greater Vancouver Metropolitan Area
- $170,000 to $190,000 CAD / year
- Full-time
Our client is an established Canadian leader in engineered industrial automation, electrical power systems, and advanced motor control solutions. Serving some of North America's most…
Added 35 mins ago
PC
Senior Software Development Engineer in Test (SDET) / Quality Engineering Architect
Pyramid Consulting, Inc
Mississauga, ON
- $70 to $79 CAD / hour
- Contract
Design and maintain next-generation, cloud-native test automation frameworks using Core Java and BDD/TDD principles.
Added 35 mins ago
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Programmer
RI-MUHC | Research Institute of the MUHC | #rimuhc
Montreal, QC
- Full-time
Develop and maintain CI/CD pipelines to support reliable development, testing, and deployment workflows.
Added 35 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 35 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 35 mins ago
AG
Senior Analyst, Marketing Science
Adelphi Group
Toronto, ON
- Full-time
Communicate with clients about media, data operations, measurement, competitive analysis, testing, modeling requirements, and results.
Added 50 mins ago
C
AI Architect-Governance & Delivery Lead
CGI
Toronto, ON
- Full-time
…relevance, groundedness, tool-call correctness, regression testing, and production…
Added 50 mins ago
T
Data Integration Engineer
TekRek
Canada
- Contract
Write and maintain Python automation for deployments, data loads and trade reprocessing, as well as reconciliation, alerting and system health checks.
Added 50 mins ago
JG
Technical Architect / Senior Developer – RPA & Automation
J&M Group
Toronto, ON
- Full-time
We are seeking a Technical Architect / Senior Developer RPA & Automation to design, develop, maintain, and enhance enterprise automation solutions. The role will focus on UiPath, Microsoft…
Added 1 hour 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
OCIO | Enterprise Automation and Service Delivery
Added 1 hour 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
OCIO | Enterprise Automation and Service Delivery
Added 1 hour ago
T
Software Engineer III
TD
Toronto, ON
- Full-time
…scaling team effectiveness through mentorship, patterns, and…
Added 1 hour ago
T
Software Engineer II
TD
Toronto, ON
- Full-time
You are accountable for detailed design, development, testing and operational support within your assigned solution area. You contribute to engineering standards, automation and reusable…
Added 1 hour 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 1 hour ago
C
Optical Performance Lab Verification and Testing Co-op
Ciena
Ottawa, ON
- $25.5 to $35 CAD / hour
- Full-time
…role provides hands-on experience with optical communications testing, laboratory instrumentation, test automation, and analysis of complex optical…
Added 1 hour ago
M
Platform Engineer
Manulife
Toronto, ON · Waterloo, ON
- Full-time
Build reusable automation that improves infrastructure provisioning, configuration, and environment management.
Added 1 hour ago
S
Technical Consultant
SymphonyAI
UNAVAILABLE, Ontario
- Full-time
…established runbooks, you’ll complete configuration, integration, testing, troubleshooting, and documentation tasks while partnering with senior consultants, engineers, and client technical…

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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