Principal AI Engineer, Mastercard

$179-318k

Salary is dependent on location

AWS

GCP

Python

Node.js

Azure

Flask

FastAPI

Senior and Expert level

New York

San Francisco Bay Area

Global payments technology company

Be an early applicant

Global payments technology company

1001+ employees

FintechB2CB2BBankingPaymentsCredit cards

Be an early applicant

$179-318k

Salary is dependent on location

AWS

GCP

Python

Node.js

Azure

Flask

FastAPI

Senior and Expert level

New York

San Francisco Bay Area

1001+ employees

FintechB2CB2BBankingPaymentsCredit cards

Company mission

To connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible.

Job

Company

Role

Who you are

Basic understanding of AI/ML concepts and enthusiasm for generative AI
Experience with Python and backend frameworks (e.g., FastAPI, Flask, Node.js)
Knowledge of REST APIs and cloud platforms (AWS, Azure, GCP)
Strong analytical skills and curiosity for exploring new AI capabilities
Collaborative mindset and openness to feedback and mentorship
Interest in prompt engineering, AI safety, and scalable deployment

What the job involves

At Mastercard, we’re building next-generation AI-powered platforms to drive innovation and impact. As an AI Engineer, you’ll work with cutting-edge tools, large language models (LLMs), and emerging frameworks to develop intelligent systems. You’ll collaborate with senior engineers, data scientists, and product teams—gaining hands-on experience while contributing to real-world AI solutions
You’ll help implement Agentic AI systems, develop backend services, and explore new AI capabilities. Your focus will include prompt engineering, guardrail design, and experimentation to ensure safe, scalable, and effective AI applications
Develop and enhance AI agents and backend systems for Mastercard’s AI platform
Evaluate LLMs and emerging technologies to identify innovation opportunities
Design and optimize prompts for LLMs
Implement safeguards to ensure secure, ethical AI responses
Build APIs, microservices, and data integrations for AI features
Write clean, maintainable code following industry best practices
Stay current with advancements in AI and software engineering

Our take

Mastercard is in the global payments business, and operates the world's fastest payments processing network. Its products and solutions have become central to everyday commerce across the world, in activities ranging from shopping and travelling to running businesses.

As the economy has become more and more digitised, Mastercard has been a leading player in helping businesses and individuals across the globe embrace card payments and digital banking. One of the world's largest companies, its revenue has seen consistent gain in the last 20 years.

The challenge for modern payments companies is that payments are always changing, as seen in the astronomical rise of contactless payments over the last decade. Mastercard's acquisition of blockchain systems, and an overall focus on leveraging its technology towards a digital economy, has placed the company in good stead to keep up to date with current trends, like cryptocurrency, in the digitised payments world.

Steph

Company Specialist at Welcome to the Jungle

Insights

21% employee growth in 12 months

Glassdoor (4.3)

Company

Company benefits

Gym membership
Share purchase options
Extra holiday purchase optional
Work from home opportunities
Health insurance

Company HQ

Purchase, Harrison, NY

Leadership

Michael Miebach

(CEO)

Has served in a variety of roles at the company, including President and CPO. Currently Board Member at IBM, Accion, the World Resources Institute, the US-India Strategic Partnership Forum, and the Metropolitan Opera. They are also a Trustee of USCIB.

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