Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Principal AI Engineer

$138k - $221k
Full-time

Mastercard

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

Principal AI Engineer

Overview:

Mastercard is seeking a Principal AI Engineer to design and deliver enterprise-scale AI platform capabilities that help teams build, deploy, evaluate, and operate AI-powered applications securely and reliably.

This role combines deep software engineering expertise with platform engineering and cloud architecture experience. You will operate as a hands-on technical leader responsible for designing scalable AI systems, defining platform standards, and driving implementation across application, infrastructure, and operational domains.

Role:

• Design scalable architectures for AI applications, distributed services, APIs, event-driven workflows, and data-intensive workloads.
• Build production-grade backend services, orchestration frameworks, and reusable platform components.
• Define platform patterns, reference architectures, and implementation standards that accelerate enterprise AI adoption.
• Translate ambiguous business and product requirements into secure, scalable technical solutions that can pass architecture, governance, and security review.
• Drive architectural decisions across service boundaries, data flows, performance, extensibility, reliability, and security.
• Design and evolve cloud-native foundations, including Kubernetes, containers, networking, deployment automation, and infrastructure as code.
• Establish standards for observability, SLOs, deployment and rollback, capacity planning, resiliency, and disaster recovery.
• Produce architecture diagrams, flowcharts, and design documentation, and lead architecture, security, and governance reviews.
• Contribute hands-on through development, code reviews, design reviews, and technical coaching.
• Evaluate emerging AI, cloud, and platform technologies and guide practical adoption decisions.

All About You:

• Strong engineering experience designing, delivering, and operating large-scale production systems.
• Proven ownership of complex platform, infrastructure, or enterprise software solutions from design through production.
• Experience leading technical initiatives across multiple teams and influencing architecture decisions at scale.
• Hands-on experience with Python and modern backend technologies.
• Experience designing APIs, distributed systems, event-driven architectures, and cloud-native applications.
• Strong understanding of software design principles, testing strategies, CI/CD, and continuous delivery practices.
• Deep experience operating systems on AWS, Azure, or GCP, with hands-on Kubernetes, containers, and cloud-native architecture experience.
• Experience with infrastructure as code tools such as Terraform, CloudFormation, Helm, or similar technologies.
• Understanding of modern GenAI application patterns, including RAG, evaluation frameworks, prompt engineering, AI observability, model lifecycle management, and agents or agent orchestration.
• Strong knowledge of networking, identity, security, reliability, monitoring, incident management, and operational readiness practices.
• Ability to present, promote, defend, and demonstrate technical solutions to engineers, architects, product leaders, security partners, governance bodies, and executive stakeholders.
• Track record of mentoring teams and driving technical excellence across an organization.

Preferred:

• Experience building enterprise AI platforms, GenAI solutions, or developer platforms.
• Experience with AI observability and evaluation platforms.
• Experience with fintech, regulated environments, or enterprise security and governance processes.
• Experience supporting highly regulated or high-security 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 View email address on decentrajobs.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: $138,000 - $221,000 CAD

Vacancy posted 21 days ago
Similar jobs that could be interesting for youBased on the Principal AI Engineer in Canada vacancy
  • $269k - $403k

     ...welcomes you—because when you feel valued, you’re empowered to do your best work. Job Summary We are seeking a Director of AI Engineering to lead and scale a high-performing Machine Learning Engineering (MLE) organization. This leader will be responsible for... 
    Suggested
    Full time
    Work at office

    Equinix

    Canada
    2 days ago
  •  ...The Role We are looking for a highly skilled AI Engineer with 7+ years of experience in software engineering, with a heavy focus on Python, AWS infrastructure, and Generative AI. The ideal candidate will be responsible for building high-performance API services and... 
    Suggested
    Full time

    Tiger Analytics

    Canada
    11 days ago
  • $227k - $270k

     ...committed to a remote first culture. The Role We’re looking for a Senior Full-Stack Software Engineer with deep expertise in Next.js, TypeScript, PostgreSQL/Supabase, and AI-assisted development to design, build, and deliver the scalable, secure systems behind our... 
    Suggested
    Full time
    Remote work

    Finite State

    Canada
    a month ago
  •  ...want to be part of an inclusive, adaptable, and forward-thinking organization, apply now. We are currently seeking a Agentic AI Engineer to join our team in toronto, Ontario (CA-ON), Canada (CA). The AI Architect will design and build agentic AI systems for multiple... 
    Suggested
    Work experience placement
    Work at office
    Remote work
    Flexible hours

    NTT DATA, Inc.

    Canada
    17 days ago
  •  ...control plane for enterprise physical infrastructure. We govern how AI agents reason about, decide on, and execute actions across...  ...negotiable standards. Role Summary We are seeking a Senior AI Engineer to take end-to-end architectural ownership of Lena's core reasoning... 
    Suggested
    Full time
    Remote work
    Flexible hours

    NetSpeek

    Canada
    28 days ago
  • The Role We are looking for a highly skilled AI Engineer with 7+ years of experience in software engineering, with a heavy focus on Python, AWS infrastructure, and Generative AI. The ideal candidate will be responsible for building high-performance API services and implementing... 
    Full time

    Tiger Analytics

    Canada
    4 hours ago
  • $111k - $160k

     ...products and services that help people, businesses and governments realize their greatest potential. Title and Summary Senior AI Engineer Overview The Security Solutions Data Science team is responsible for developing Artificial Intelligence (AI) and Machine Learning... 
    Full time
    Worldwide

    Mastercard

    Canada
    a month ago
  • $208k - $333k

     ...services that help people, businesses and governments realize their greatest potential. Title and Summary Vice President, AI Software Engineering Overview: Mastercard is looking for a talented VP, AI Software Engineering to join the Mastercard Foundry Research... 
    Full time
    Worldwide

    Mastercard

    Canada
    a month ago
  • $136k - $204k

     ...processes; develops and reviews business cases for change and improvement. Responsibilities Engineering Expectations (Core Capabilities) Design and build end-to-end AI systems integrating ML models, LLMs, APIs, and enterprise data Translate business... 
    Full time
    Work at office

    Equinix

    Canada
    2 days ago
  •  ...Innodata is expanding its team of technical experts in LLM training, post-training, and evaluation systems. As an AI/ML Research Engineer, LLM Training & Evaluation , you will build and optimize the technical foundations that power model improvement for foundation model... 
    Full time

    Innodata

    Canada
    12 days ago
  • Innodata is expanding its team of technical experts in LLM training, post-training, and evaluation systems. As an AI/ML Research Engineer, LLM Training & Evaluation , you will build and optimize the technical foundations that power model improvement for foundation model... 
    Full time

    Innodata

    Canada
    4 hours ago
  • $154k - $247k

     ...products and services that help people, businesses and governments realize their greatest potential. Title and Summary Principal Information Security Engineer Who is Mastercard? Mastercard is a global technology company in the payments industry. Our mission is to... 
    Full time
    Worldwide

    Mastercard

    Canada
    a month ago
  • $240k - $360k

     ...best work. Role Summary The Senior Principal Architect is a highly influential...  ...network platforms within Network Platform Engineering (NPE). NPE designs, builds, and operates...  ..., and readiness Drive adoption of AI-driven capabilities where relevant Escalation... 
    Full time
    Work at office
    Shift work

    Equinix

    Canada
    2 days ago
  • $80 - $150 per hour

     ...Overview Drive measurable productivity gains across large organizations by designing, implementing, and documenting enterprise-grade AI-powered workflows and automations. In this contractor, remote role you will apply domain expertise to shape how next-generation AI... 
    Remote job
    Hourly pay
    For contractors
    Local area

    SaidGig

    Canada
    8 days ago
  • $70 - $126 per hour

     ...Role Overview Apply your technical domain expertise to shape how agentic AI performs in real engineering workflows. In this contractor role you will work with autonomous AI coding agents to plan, implement, debug, and document complex software and technical processes,... 
    Remote job
    Hourly pay
    For contractors
    Local area
    Visa sponsorship

    SaidGig

    Canada
    1 day ago
  •  ...traduction en anglais suivra! Stagiaire en développement XR et AI  Aperçu du poste  Autodesk cherche un.e stagiaire motivé.e qui...  ...érience en TypeScript, Python et React  Expérience avec Unreal Engine pour développer des applications de réalité virtuelle  Expé... 
    Full time
    Temporary work
    Internship

    Autodesk

    Canada
    more than 2 months ago
  • $200k - $300k

     ...feel valued, you’re empowered to do your best work. Job Summary As a Principal Machine Learning Engineer, you will design, build, deploy, and scale machine learning and generative AI systems that power real-world products. You will work closely in AI Sidekick team... 
    Full time
    Work at office

    Equinix

    Canada
    2 days ago
  • $40 - $80 per hour

     ...Role Overview Help train next-generation AI by creating precise, high-quality annotations on short video clips. In this contractor...  ...to project-specific guidelines and objectives. Apply prompt engineering approaches to produce high-value training data for models.... 
    Remote job
    Hourly pay
    For contractors

    SaidGig

    Canada
    1 day ago
  • $122k - $155k

     ...together. At General Dynamics Mission SystemsCanada, were not just engineering technology were shaping the future of defence and security....  ...context switch Experience working with or familiarity with AI/ML models is preferred. Assets include: A Professional... 
    Full time
    Flexible hours

    GD Mission Systems

    Canada
    19 days ago
  • $88.8k - $133.2k

     ...stack solutions using Python and React. •    Leverage Generative AI tools, including coding assistants (Copilot, Agent mode, Skills...  ...maintainability. •    Collaborate with global teams across engineering, product, and compliance. •    Learn and apply our client’s... 
    Work experience placement
    Work at office
    Remote work
    Flexible hours

    NTT DATA, Inc.

    Canada
    8 days ago
  •  ...Ventures, Coinbase Ventures, Uniswap Labs, Circle Ventures, Delphi Digital, and many more. ABOUT THE ROLE We're looking for an Engineering Manager to lead our Backend engineering teams at LayerZero. You'll own the people, process, and technical direction for systems... 
    Full time

    Layerzero Labs

    Canada
    a month ago
  • The Role We’re looking for an Engineering Manager who can lead a small, experienced team doing high-ownership work in a regulated environment. This is not a role for someone who wants to sit above the work. It’s for someone who can help engineers make good decisions, keep... 
    Full time

    Synctera

    Canada
    4 hours ago
  •  ...About Us We are looking for an Engineering Manager to lead our Merchants engineering function — two closely related teams (Core and Growth...  ...— set the bar for how engineering decisions are made Review AI-generated and human-written code with equal rigor — you... 
    Full time
    Remote work

    Burq

    Canada
    15 days ago
  • $181k - $241k

     ...giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. We are seeking an Engineering Manager to lead our ML Training & Serving team. You will directly lead a team of platform engineers and combine effective people... 
    Full time

    Affirm

    Canada
    8 days ago
  •  ...The Opportunity We don't just use AI. We build with it, ship with it, and think with it. With a generous budget for tokens, our engineers use AI agents to write, review, and ship production code every day. We are building toward a world where humans design systems and... 
    Full time

    Luxury Presence

    Canada
    18 days ago
  •  ...friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. We are seeking an Engineering Manager to lead our ML Training & Serving team. You will directly lead a team of platform engineers and combine effective people... 
    Full time

    Affirm

    Canada
    4 hours ago
  • About Us We are looking for an Engineering Manager to lead our Merchants engineering function — two closely related teams (Core and Growth) that together own the full merchant-facing product at Burq. This is a builder-leader role. You will own the technical direction, team... 
    Full time

    Burq

    Canada
    4 hours ago
  • $121k - $169k

     ...services that help people, businesses and governments realize their greatest potential. Title and Summary Manager, Site Reliability Engineering Overview: Ethoca and Mastercard are seeking a Manager, Site Reliability Engineering, to lead globally distributed... 
    Full time
    Worldwide

    Mastercard

    Canada
    a month ago
  • $133k - $183k

     ...integrity, and trust. Position Overview We are seeking a highly autonomous, systems-fluent, and development-oriented Software Engineer II (Money Movement & Card Ledger) to join our core financial platform engineering vertical under a permanent, full-time remote configuration... 
    Permanent employment
    Full time
    Remote work
    Flexible hours
    Shift work

    Affirm

    Canada
    29 days ago
  •  ...completely revolutionizing retail with a proprietary, data-driven learning system that leverages custom customer feedback models to engineer perfectly tailored products. Backed by premier institutional venture funds and featured across major business publications like... 
    Full time
    Remote work

    Short Story

    Canada
    28 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Principal AI Engineer. Be the first to apply!