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Added 1 month ago
Senior Machine Learning Engineer
Fitch Group
Toronto, ON
…engineers to turn ambitious vision into production reality. As a Senior ML Engineer, you'll be a technical force on the team - building sophisticated ML systems, driving innovation through…
Added 1 month ago
Senior Engineer, AI Native SDLC
Scotiabank
Toronto, ON
The Senior Engineer / Senior Manager is a hands on technical leader and SDLC owner responsible for building, defining, and scaling an AI Native Software Development Lifecycle (SDLC) across…
Added 2 months ago
Engineering Lead, Quality
Vancity
Toronto, ON · Vancouver, BC
Full-time
As a Engineering Lead, Quality, you will play a senior technical role responsible for ensuring the quality, reliability, and performance of member-facing platforms through hands-on…
Added 1 month ago
Principal Software Engineer - Zynque
Fulfillment IQ
Remote, Canada
Full-time · Remote
Job Title: Principal Software Engineer - Zynque
Added 2 months ago
Staff Software Engineer
RBGlobal
Burnaby, BC
Full-time
We are seeking a highly skilled Staff Software Engineer to join our Data Engineering team. In this senior technical leadership role, you will drive the architecture, design, and evolution…
Added 9 days ago
Senior Physical Design Engineer
Advanced Micro Devices, Inc
Markham, ON
Full-time
As a Design Engineer, you will be working with a diverse team of physical design engineers, RTL design engineers, and managers from NBIO IP team. You will drive physical implementation of…
Added 13 days ago
Senior Lead AI Application Engineer (Global Security)
RBC
Calgary, AB · Toronto, ON
Full-time
As the Senior Lead AI Application Engineer, you will lead multi-agentic application software engineering and full-stack delivery of secure, cloud native microservices that embed pragmatic…
Added 12 days ago
Senior Cloud Systems Engineer
QuadReal Property Group
Vancouver, BC · Toronto, ON
Full-time
The Senior Cloud Systems Engineer role is to ensure the stability, integrity, and efficient operation of the cloud-based and in-house information systems that support core organizational…
Added 3 months ago
Senior Product Reliability Engineer
e-STORAGE
Kitchener, Ontario
Full-time
We are seeking a skilled and passionate Senior Product Reliability Engineer to join our dynamic team and contribute to the development and on-site success of utility-grade systems for clean…
Added 2 months ago
Senior Analytics Engineer
Super.com
Remote, Canada
$118,000 to $170,000 USD / year
Full-time · Remote
We are looking for a Senior Analytics Engineer to join our growing Data & Analytics team! As a Sr. Analytics Engineer at Super.com, you will evolve our foundational data infrastructure to…
Added 1 month ago
Sr Guidewire Developer -PolicyCenter
Aviva
Markham, ON
5+ years of experience with coding in multiple programming languages such as C#, Java, Python, etc.
Added 23 days ago
Senior Software Engineer, Payments
Kindsight
Canada
Full-time
We are seeking a Senior Software Engineer, Payments to join a newly forming Payments Engineering team and take meaningful ownership of Kindsight's next-generation Payments Platform.
Added 23 days ago
Intermediate Software Engineer, Payments
Kindsight
Canada
Full-time
You'll work alongside Senior and Staff engineers to build reliable backend services, integrate with our selected payments partner, and create the infrastructure needed to safely orchestrate…
Added 9 days ago
Generative AI Engineer
LanceSoft, Inc.
Montreal, QC
$60 to $65 CAD / hour
Contract
We are seeking a Senior Level 3 AI Engineer to act as the first point of call for engineering issues across the firm’s end user AI products - Microsoft Copilot, OpenAI ChatGPT, Anthropic…
Added 9 days ago
Data Engineer
Hays
Toronto, ON · North York, ON
Contract
· Collaborate with business stakeholders, data analysts, and technology teams to deliver reliable and scalable data solutions.
Added 9 days ago
Senior Delivery Consultant - Connect and Lex, Amazon Connect Center of Delivery Excellence
Amazon Web Services (AWS)
Toronto, ON
Full-time
5+ years of experience as a contact center technology architect, enterprise IT Architect or senior contact center developer working with leading contact center technology platforms and…
Added 3 days ago
Senior Analytics Engineer, Workbench
Fulfillment IQ
Remote, Canada
$125,000 to $155,000 CAD / year
Full-time · Remote
Job Title: Senior Analytics Engineer, Workbench
Added 10 days ago
Senior Machine Learning / AI Engineer
INETCO Systems Ltd.
Vancouver, BC
Full-time
We are looking for a Senior Machine Learning / AI Engineer to help design, build, test and deploy machine learning and AI-based systems for our BullzAI product line.
Added 1 month ago
Senior Staff Embedded Firmware Engineer
Arlo Technologies
Richmond, BC · CA - British Columbia - Richmond
$180,000 to $200,000 CAD / year
Full-time
Arlo is seeking an exceptional Senior Staff Embedded Firmware Engineer to provide technical leadership in the architecture, design, and development of next-generation IoT and video…
Added 2 months ago
Senior ML Research Engineer, Virtual Cell
SandboxAQ
Remote, Canada
$125,800 to $222,000 CAD / year
Full-time · Remote
Software Engineering: Strong Python programming skills and experience with modern ML frameworks (e.g. PyTorch, JAX) and experiment tracking/data versioning tools (e.g. Weights & Biases).
Added 2 months ago
Senior Software Engineer, AWS
Gore Mutual Insurance
Toronto, ON · Cambridge, ON
The Senior Engineer, AWS is responsible for designing, developing, and maintaining Gore Mutual's Amazon Connect contact center platform and its supporting AWS services (Lambda, Lex,…
Added 11 days ago
Staff AI Platform Engineer
Royal Bank of Canada
Toronto, ON
Full-time
…operating core components of this platform. You'll work alongside Senior and Principal Developers, driving architectural decisions, mentoring engineers, and delivering high-quality,…
Added 10 days ago
Senior Software Engineer II
Thomson Reuters
Toronto, ON · Canada, Toronto, Ontario
Full-time
Strong understanding of integration design patterns, integration points and business systems and develop integrations with SAAS, AWS or on-prem systems.
Added 10 days ago
Senior Software Engineer
Mastercard
Vancouver, BC
Full-time
The Business Rules Engineering & Strategy team is looking for a Senior Software Engineer to drive forth our mission of building robust IBM ODM Rule solutions that provide transaction-level…
Added 10 days ago
Senior / Staff Software Engineer, AI Tech Strike Team
Waabi
Toronto, ON
$165,000 to $265,000 USD / year
Full-time
…Strike Team to establish centralized best practices for working with AI across Waabi with the aim of maximizing productivity. We are looking for hands-on senior software engineers to build…

Mastercard

Senior Software Engineer

Vancouver, BC, Canada

Job type: Full-time
Posting language: English
Posted: Sep 11, 2026

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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 Software EngineerWho 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 Business Rules Engineering & Strategy team is looking for a Senior Software Engineer to drive forth our mission of building robust IBM ODM Rule solutions that provide transaction-level decisions, alerting and notifications. Business Rules embed intelligence into the transactional cycle by leveraging scoring models, cohesive rule strategies and behavioural data, and when combined with our agile rule development & deployment capabilities, results in a competitive advantage for all stakeholders, in the entire payment ecosystem.

Role
• Proven experience in the modernization of platforms, especially related to Fraud Rules/Engines and large-scale migrations
• Experience building and operating scalable global platforms with high throughput, low latency, with 5 9’s availability
• Hands-on experience with Fraud Rules Engines as Rule Author 
• AI experience is focused on using AI-assisted development tools
• Familiarity with AI technologies like Gen AI, LLMs relevant to Fraud Rules
• Follow solution architectural designs and ensure they are aligned with business needs, infrastructure capabilities, and security & compliance requirements
• Be the driving force with the implementation of best practices and strong experience with writing rules
• Familiarity with Programming Languages like Java, Python, GO
• Be the force multiplier for automations and enhancements

All About You
• Minimum bachelor’s degree in information technology, Computer Science or extensive work experience.
• Hands-on Software development experience and familiar with DevOps and IT Operations best practices.
• Experience with Fraud Rule Engines and proven experience in large-scale migrations
• Working experience across 1 or 2 programming languages and frameworks, love declarative paradigm and functional programming
• Must be high-energy, detail-oriented and proactive with the ability to function under pressure in an independent environment.
• Have a passion for continuous learning and enjoy challenging opportunities.
• Strong communication skills – both verbal and written – with strong relationship building, collaborative skills and organizational skills.
• Drives outcomes through strong commitment to timely delivery of key objectives.
• Have strong decision-making skills and continually improve as a result.
• Must have solid experience with software development processes and be an experienced user of one or more Application Lifecycle Management tools.
• Financial Domain preferable Banking Domain
• Success with producing high-quality project design deliverables and documentation
• Extensive experience with databases: Relational & NoSQL
• Understanding of loosely coupled and stateless systems
• Demonstrated track record with AI
• Familiarity with performance tuning, automationMastercard 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 [email protected] 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

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More about this job

Responsibilities

The Senior Software Engineer will drive the development of robust IBM ODM rule solutions to provide transaction-level decisions and fraud detection. They will also implement best practices for rule authoring, automation, and platform modernization while ensuring alignment with security and compliance requirements.

Requirements

Candidates must have a bachelor's degree in Computer Science or related field and extensive experience with fraud rule engines and large-scale migrations. Proficiency in programming languages like Java, Python, or Go and experience with DevOps practices are essential for this role.

Skills

IBM ODM
Fraud Rules Engines
Java
Python
Go
DevOps
IT Operations
Gen AI
LLMs
Database Management
Software Architecture
Performance Tuning
Automation
Data Modeling
Agile Development

Visa sponsorship

Not detected in the job text

Keywords

IBM ODM
Fraud Rules
Software Engineering
Java
Python
Go
DevOps
IT Operations
Gen AI
LLMs
Relational Databases
NoSQL
Automation
Performance Tuning
Payment Ecosystem
Transaction Security
Agile
Banking Domain
Financial Services
Scalable Platforms
Stateless Systems
Loosely Coupled Systems
Rule Authoring
Modernization

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