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Added 12 days ago
ES
GEN AI Developer
Epsilon Solutions Ltd.
Mississauga, ON
- Contract
Experienced professional with strong Python development and Generative AI expertise, especially in prompt engineering.
Added 12 days ago
JG
Data AI Engineer
J&M Group
Markham, ON
- Full-time
We are seeking an experienced AI/ML Developer to design, develop, and deploy machine learning and generative AI solutions. The ideal candidate should possess strong expertise in Python,…
Added 12 days ago
TU
Bioinformatics Specialist
The University of British Columbia
Vancouver, BC
- $8,810.92 to $13,202.5 CAD / month
- Full-time
Reports to the BCCHR Director - Research Informatics and works in collaboration with the BCCHR Associate Director - Foundational Science, BCCHR IT, and the users of the Core (researchers,…
Added 12 days ago
AI
Computer Vision Engineer
Aptino, Inc.
Canada
- Contract
…Learning, Predictive Analytics, and AI solution architecture with strong experience in the Energy & Utilities or Oil & Gas…
Added 12 days ago
T
Data Scientist III
TD
Toronto, ON
- Full-time
Proficiency in Python and SQL, with experience using common data and machine-learning libraries and working in Databricks or a comparable cloud analytics platform.
Added 12 days ago
FC
Senior DevSecOps Engineer
Fintel Connect
Vancouver, BC
- Full-time
Familiarity with Python, JavaScript/TypeScript, and modern web frameworks such as React.js is an asset.
Added 12 days ago
B
Sr. Applied AI Scientist – Generative AI & Agentic Systems
BMO
Toronto, ON · FCP
- Full-time
We are seeking a highly motivated Sr. Applied AI Scientist with deep industry experience in Artificial Intelligence, Generative AI, and modern software engineering. This role offers an…
Added 12 days ago
M
Senior AI Engineer, Big Data & AI Solutions
Mastercard
Vancouver, BC
- Full-time
Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can…
Added 12 days ago
X
Senior Accountant
Xanadu
Toronto, ON
- Full-time
In this role, you will combine strong technical accounting expertise with a focus on operational excellence, ensuring that revenue, inventory, and capital investments are accurately…
Added 12 days ago
P
Software Developer
Plusgrade
Montreal, QC
- Full-time
…renewals, rate changes, and notifications collaborating closely with members from product and our architecture group. You will help evolve our Python/Flask services, React frontend, improve…
Added 12 days ago
R|
Programmer
RI-MUHC | Research Institute of the MUHC | #rimuhc
Montreal, QC
- Full-time
…arm of the McGill University Health Centre (MUHC) affiliated with the Faculty of Medicine at McGill University. The RI-MUHC is supported in part by the Fonds de recherche du Québec - Santé…
Added 12 days ago
AI
Python Developer -Forward Deployed, Pyspark
Apptoza Inc.
Toronto, ON
- Contract
Role: Python Developer -Forward Deployed, Pyspark
Added 12 days ago
Intern, Security Analyst - Winter Semester 2027
AlayaCare
Montreal, QC
With 550+ employees across Canada, the US, Australia, and Brazil, we’re united by a shared mission and a strong culture of transparency, growth, and human connection. Whether you're early…
Added 12 days ago
AG
Senior Analyst, Marketing Science
Adelphi Group
Toronto, ON
- Full-time
…offering. We work to connect the media we plan and execute with our client’s business outcomes. Establishing that relationship requires data-focused capabilities across 3…
Added 12 days ago
EC
GEN Ai Developer
Experis Canada
Toronto, ON
- Contract
Develop enterprise-scale applications using Python and microservices architecture.
Added 12 days ago
C
AI Architect-Governance & Delivery Lead
CGI
Toronto, ON
- Full-time
…and effectively across the software development lifecycle, with a focus on production delivery value rather than theoretical…
Added 12 days ago
T
Data Integration Engineer
TekRek
Canada
- Contract
TekRek is partnered with a Canadian data and AI consultancy that builds enterprise data platforms for clients in the public sector and other regulated industries. This hire will be placed…
Added 12 days ago
AI
Forward Deployed Engineer (Python/Pyspark Developer)
Apptoza Inc.
Toronto, ON
- Contract
…application development, and client-facing consulting. You will embed with business users, client SMEs, product owners, and engineering teams to understand complex workflows, rapidly…
Added 12 days 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 12 days 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
…Delivery (EASD) portfolio. The incumbent will work collaboratively with the Senior Programmer…
Added 12 days 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
…Delivery (EASD) portfolio. The incumbent will work collaboratively with the Senior Programmer…
Added 12 days ago
T
Software Engineer III
TD
Toronto, ON
- Full-time
As a candidate, you are encouraged to ask compensation related questions and have an open dialogue with your recruiter who can provide you more specific details for this role.
Added 12 days ago
T
Software Engineer II
TD
Toronto, ON
- Full-time
As a candidate, you are encouraged to ask compensation related questions and have an open dialogue with your recruiter who can provide you more specific details for this role.
Added 12 days ago
M
Senior Analyst, Private Corporate Credit
Morningstar
Toronto, ON
- Full-time
Advanced proficiency in Microsoft Excel, along with strong working knowledge of Python and SQL for financial data analysis, manipulation, and reporting.
Added 12 days ago
A
IP Design Intern
Altera
Toronto, ON
- Full-time
…the focus, speed, and agility to innovate without compromise. With more than four decades of industry‑leading FPGA expertise, our singular mission is to deliver the programmable…

Mastercard

Senior AI Engineer, Big Data & AI Solutions

Vancouver, BC, Canada

Full-time

Apply About employer

Applications open in a new tab.

Job details

Job type: Full-time
Posting language: English
Posted: Oct 27, 2026

Original job description

Our Purpose

Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.

Title and Summary

Senior AI Engineer, Big Data & AI SolutionsWho is Mastercard?

Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships and passion, our innovations and solutions help individuals, financial institutions, governments, and businesses realize their greatest potential.

Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all.

Overview
The Security Solutions Data Science team develops AI and machine learning capabilities that help protect the global payments ecosystem from fraud and cyber threats. Supporting Mastercard's Safety Net product, the team creates and enhances models that analyze billions of transactions and identify suspicious activity in real time.

As a Senior AI Engineer, you will work at the intersection of AI engineering and big data engineering, helping improve the models, data assets, and operational processes that power fraud detection. You will collaborate closely with Data Scientists and Engineers to strengthen feature engineering, advance model monitoring capabilities, and deliver AI-driven solutions that improve performance and efficiency. 

Role
As a Senior AI Engineer, you will:
• Support machine learning models that help detect cyber-attacks, fraud and improve decision intelligence.
• Create data pipelines and feature engineering workflows that enable model development and evaluation.
• Process and analyze large-scale datasets to uncover insights and improve model inputs.
• Strengthen monitoring, observability, and drift detection capabilities across production environments.
• Apply automation and MLOps practices to improve reliability, efficiency, and scalability.
• Develop AI-powered solutions that address engineering challenges and streamline operational processes.
-Partner with Data Scientists, Engineers, and Product teams to bring new capabilities into production.
• Contribute ideas that improve model performance, operational visibility, and team productivity.

Required Qualifications
• Master’s degree with relevant experience, or Bachelor’s degree in Computer Science, Artificial Intelligence, Machine Learning, Data Science, Engineering, or a related field; equivalent practical experience will also be considered.
• Proficiency in Python, PySpark, SQL, and distributed data processing.
• Hands-on experience with feature engineering, large-scale data processing, and analytics.
• Hands-on experience with Databricks, Airflow, Hadoop, Linux/Unix, cloud-native technologies
• Understanding of machine learning and deep learning techniques.
• Understanding of model deployment, evaluation, monitoring, and optimization.
• Knowledge of MLOps concepts including testing, automation, CI/CD, and version control.
• Ability to communicate technical concepts and collaborate across teams.

Preferred Qualifications
• Fraud, cybersecurity, payments, or risk management domains.
• Experience with Generative AI, LLMs, RAG, or agentic AI applications.
• Familiar with AI-assisted development tools such as GitHub Copilot, or Claude Code.
• Experience working with cloud-based data and AI environments.Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact reasonable_accommodation@mastercard.com and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.

Corporate Security Responsibility

All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:

Abide by Mastercard’s security policies and practices;
Ensure the confidentiality and integrity of the information being accessed;
Report any suspected information security violation or breach, and
Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.

In line with Mastercard’s total compensation philosophy and assuming that the job will be performed in Canada, the successful candidate will be offered a competitive pay based on location, experience and other qualifications for the role and may be eligible to participate in a discretionary annual incentive program.

Pay Ranges

Vancouver, Canada: $111,000 - $160,000 CAD

Apply About employer

More about this job

Responsibilities

The Senior AI Engineer will develop and support machine learning models and data pipelines to detect fraud and cyber threats in real-time. They will collaborate with cross-functional teams to implement MLOps practices and enhance model monitoring and performance.

Requirements

Candidates must hold a Bachelor's or Master's degree in a technical field and possess proficiency in Python, PySpark, and SQL. Experience with large-scale data processing, cloud-native technologies, and MLOps concepts is required.

Skills

Python
PySpark
SQL
Distributed data processing
Feature engineering
Databricks
Airflow
Hadoop
Linux/Unix
Cloud-native technologies
Machine learning
Deep learning
Model deployment
MLOps
CI/CD
Version control

Benefits

Discretionary annual incentive program

Visa sponsorship

Not detected in the job text

Keywords

AI Engineering
Big Data
Fraud Detection
Cybersecurity
Machine Learning
Python
PySpark
SQL
Databricks
Airflow
Hadoop
Linux
Unix
Cloud-native
Deep Learning
MLOps
CI/CD
Version Control
Generative AI
LLMs
RAG
Agentic AI
GitHub Copilot
Claude Code
Data Pipelines
Feature Engineering
Model Monitoring
Payments
Risk Management
Automation

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