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Added 11 mins ago
Vice President, Technology and Transformation Risk
Aviva Canada
Toronto, ON
Full-time
The VP Technology and Transformation Risk is a senior member of the Canada Risk function, responsible for providing independent second line oversight and challenge across Technology, Data,…
Added 11 mins ago
Manager, Strategic Programs (12 Month Contract)
Deloitte
Toronto, ON
Full-time
…shape practical solutions, lead integrated delivery, influence senior stakeholders, coach team members, and ensure programs achieve meaningful outcomes for our people and the firm. In this…
Added 11 mins ago
Data Architect
AGLC
AB · Edmonton, AB
Full-time
Added 11 mins ago
Senior SDET (Java & API Automation)
Rose International
Toronto, ON · North York, ON
Full-time
Job Title: Senior SDET (Java & API Automation)
Added 11 mins ago
Product Manager - HVAC Portfolio
Enercare Inc.
Markham, ON
Full-time
…Heat Pump, Boilers, and related offerings. Reporting to the Senior Manager, Product Management (HVAC Portfolio), this role is responsible for supporting the development and execution of the…
Added 11 mins ago
Senior Consultant, Strategic Programs (14 Month Contract)
Deloitte
Toronto, ON
Full-time
What will your typical day look like? As a Senior Consultant on the Strategic Programs team, you own workstreams end-to-end within firm-wide Culture and People initiatives. Acting as an…
Added 11 mins ago
Executive Director - EYET Family Resources
crawfordconnect
Toronto, ON
Full-time
A seasoned leader (ED or senior leadership experience) in the non-profit sector, with a minimum 5 years of prior executive/senior administrative management experience in a non-profit,…
Added 12 mins ago
AVP Insurance Distribution
Sun Life
Toronto, ON · Waterloo, ON · Sun Life Toronto One York
Full-time
Senior leadership experience in insurance or financial services distribution.
Added 12 mins ago
Sr. Change Management & Training Specialist (12 Month Contract)
McKesson
Mississauga, ON
Full-time
As a senior individual contributor, you will partner closely with business leaders, Innovation teams, Analytics, and HR/Organizational Effectiveness to drive organizational readiness,…
Added 12 mins ago
Applications Support Analyst - Assistant Vice President
Citi
Mississauga, ON
Full-time
Acts as SME to senior stakeholders and /or other team members.
Added 12 mins ago
Senior Actuarial Analyst - Pricing Modelling
Wawanesa Insurance
Toronto, ON · AB · Winnipeg, MB · Wawanesa, MB · Moncton, NB · Ottawa, ON · Kitchener, ON · Montreal, QC · Vancouver, BC · Lloydminster, AB · Dartmouth, NS · Calgary, AB · Lethbridge, AB · Edmonton, AB (Hybrid), AB · North York - Toronto, ON (Hybr, ON
Added 12 mins ago
Finance Manager
Magellan
Kitchener, ON
Ability to operate effectively with high level direction from senior management. Must be able to identify opportunities and issues without being specifically directed by management.
Added 12 mins ago
Managing Director - Cybersecurity & Core Technology Audit
BMO
Toronto, ON · FCP
Full-time
Serve as the senior audit relationship lead for technology executives, including CISOs, engineering, infrastructure, and operations leaders, while maintaining strategic partnerships with…
Added 12 mins ago
Marketing Manager, Contract
AstraZeneca
Mississauga, ON · Canada - Mississauga
Full-time
Reporting to the Senior Marketing Manager, Breast Cancer, this role will support the Canadian Breast Cancer team in shaping and executing brand strategy across an evolving portfolio.…
Added 12 mins ago
Full-time Senior Data and Analytics Systems Analyst
Algonquin College
Ottawa, ON
Full-time
The Senior Data and Analytics Systems Analyst provides senior hands-on technical analysis, design, development, integration, implementation, and production support for the College's…
Added 12 mins ago
Software Engineer - II
Mastercard
Vancouver, BC
Full-time
We are looking for a Software Developer to join our DMP team in Vancouver office.
Added 12 mins ago
Senior Analyst, Sourcing Enablement
HelloFresh
Toronto, ON
We’re hiring a Senior Analyst to join our Sourcing Enablement Team within Supply Chain Enablement & Insights at HelloFresh. In this role, you will partner closely with purchasing leaders,…
Added 12 mins ago
Senior Engineer - ServiceNow Development
The TJX Companies, Inc.
Mississauga, ON · CAN Home Office Mississauga ON
$87,780 to $122,892 CAD / year
Full-time
We’re looking for a Senior Engineer - ServiceNow Development to play a key role in designing and delivering innovative ServiceNow solutions that enhance service management processes and…
Added 27 mins ago
Bilingual Advisor, Cloud Infrastructure Engineering
CMHC - SCHL
Ottawa, ON · Montreal, QC
…Infrastructure Engineering position. The Advisor, provides senior technical advisory support for the evolution and continuous improvement of the organization’s cloud and infrastructure…
Added 27 mins ago
Advisor, Cloud Infrastructure Engineering
CMHC - SCHL
Ottawa, ON · Montreal, QC
…Infrastructure Engineering position. The Advisor, provides senior technical advisory support for the evolution and continuous improvement of the organization’s cloud and infrastructure…
Added 27 mins ago
Data & Visual Insights Analyst
Fidelity Canada
Mississauga, ON
Full-time
The successful candidate will work closely with senior analysts and business leaders, develop technical expertise in reporting, SQL, data management, visualization, and business…
Added 27 mins ago
Senior Financial Analyst
Hexagon
Calgary, AB
Full-time
Hexagon’s Autonomous Solutions division is looking for a Senior Financial Analyst to join our team in Calgary, AB or Tucson, AZ. Reporting to the Senior Manager FP&A this role will support…
Added 27 mins ago
Reference Data Lead – Security Master
Capco
Toronto, ON
This is a senior role with broad visibility and influence across the firm. You’ll be responsible for the quality, governance, and integrity of reference data across multiple asset classes,…
Added 27 mins ago
Capital Markets Data SME – Transaction, Reference & Market Data
Capco
Toronto, ON
This is a senior, hands-on SME role with significant ownership across solution design, data modelling, enrichment, and analytics. You’ll help create a trusted data foundation that enables…
Added 27 mins ago
Senior Data Solutions Consultant
Klick
Toronto, ON
Full-time
The Senior Data Solutions Consultant partners with cross-functional teams to design, build, and optimize scalable data solutions that support omnichannel marketing, analytics, and…

Mastercard

Senior Principal Software Engineer, R&D

Toronto, ON, Canada

Job type: Full-time
Posting language: English
Posted: Sep 28, 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 Principal Software Engineer, R&DOverview

Mastercard is looking for a Senior Principal Software Development Engineer to join the Mastercard Foundry Research and Development team in our Toronto location. In this role, you will establish the technical direction for complex, early-stage products, drive architecture decisions across teams, and bring innovative solutions to global markets at enterprise scale. The Senior Principal Software Engineer thrives on setting direction where product concepts are ambiguous, aligning engineering choices to commercial outcomes.
Our team is built on a foundation of research and development, mining innovation internally, innovating new product lines with emerging technology, managing new products from inception to market validation and engaging strategically with start-ups to shape the future of commerce with and for our customers. At Mastercard you will help define the future of commerce globally.
This team will have a diverse focus both in terms of geography and variety of technology challenges driving hard to bring innovative payment solutions and services to market.

As a Senior Principal Software Engineer on the R&D team, you will be at the forefront of the design of complex, large-scale new product concepts spanning Mastercard’s business units.

Responsibilities of the role include:

• Define highly scalable solution architectures for complex, early-stage product concepts across technology stacks, data platforms, and environments
• Establish engineering best practices that accelerate responsible use of AI across solution architecture and software delivery, including patterns for AI-assisted development, evaluation, observability, and production readiness
• Set technical direction for complex applications, interfaces, and integrations from concept through implementation, deployment, and release
• Set technical strategy and lead architecture implementation for Data Platforms in Foundry R&D, creating reusable patterns that can scale across products
• Influence technical direction across R&D, product, and technology teams, creating alignment on tradeoffs, delivery risks, and long-term platform choices
• Identify high-impact technical risks, make architecture decisions under uncertainty, and design experiments or prototypes to de-risk product concepts before market validation
• Act as a force multiplier for engineering excellence by coaching senior engineers, reviewing critical designs, raising quality standards, and creating technical practices that improve delivery
across teams

All About You
• Hands-on experience architecting and building 0-to-1 applications using Generative AI, LLMs, or agentic patterns
• Demonstrated ability to set technical strategy for complex initiatives, make architecture decisions under uncertainty, and influence senior technical and business stakeholders without direct authority
• Deep experience with one or more modern AI frameworks and SDKs for agent orchestration, AI application development, or coding-agent workflows, such as LangGraph, OpenAI Agents SDK, or Codex SDK
• Expertise in cloud platforms such as Databricks, Snowflake, AWS, and Azure
• Strong working knowledge of AI/ML, data analytics, and data product development with emphasis on data quality, data privacy, and localization
• Proven track record creating reusable architecture patterns, platforms, or engineering practices that accelerate delivery, reduce technical risk, or improve quality across an organization
• Uses AI to innovate on and improve individual and team engineering practices
• Expertise with Java, Spring Boot, React, Typescript, Postgres, and other object-oriented languages, front-end frameworks, and database technologies
• Strong business acumen and ability to apply technology to solve business problems
• Excellent verbal and written communication and cross-functional collaboration skills
• Proven track record raising the technical capability of senior engineers and teams through coaching, design review, standards-setting, and technical leadership
• Experience representing technical work through internal forums, external conferences, publications, open-source contributions, patents, or other thought leadership channelsMastercard 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. This posting reflects one or more current openings on our team.

Pay Ranges

Toronto, Canada: $208,000 - $333,000 CAD

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More about this job

Responsibilities

Define highly scalable solution architectures for early-stage product concepts and establish engineering best practices for AI integration. Lead technical strategy across R&D teams while coaching senior engineers to ensure high-quality delivery and innovation.

Requirements

Requires extensive experience in architecting 0-to-1 applications using Generative AI and modern AI frameworks. Candidates must demonstrate strong technical leadership, expertise in cloud platforms, and proficiency in Java, React, and database technologies.

Skills

Generative AI
LLMs
Agentic patterns
Software architecture
Java
Spring Boot
React
Typescript
Postgres
Cloud platforms
Databricks
Snowflake
AWS
Azure
Data analytics
Technical leadership

Visa sponsorship

Not detected in the job text

Keywords

Software Engineering
R&D
Generative AI
LLMs
Agentic patterns
Java
Spring Boot
React
Typescript
Postgres
Databricks
Snowflake
AWS
Azure
Data platforms
Solution architecture
Product development
Technical strategy
Data privacy
Data quality
Cloud computing
Engineering excellence
Innovation
Payments
Commerce
Mentorship
System design
Scalability
Agile
API

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