Jobs and Careers
MA
Software Engineer II
MastercardO'Fallon, United Statesfull_timeVerifiedPosted 15 Apr 2025
💰 $147,000/yr($92,000/yr – $147,000/yr)
About the role
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
Software Engineer IIWho is Mastercard?We work 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. We cultivate a culture of inclusion for all employees that respects their individual strengths, views, and experiences. We believe that our differences enable us to be a better team – one that makes better decisions, drives innovation, and delivers better business results.
Technology at Mastercard
What we create today will define tomorrow. Revolutionary technologies that reshape the digital economy to be more connected and inclusive than ever before. Safer, faster, more sustainable, and we need the best people to do it.
Technologists who are energized by the challenges of a truly global network. With the talent and vision to create the critical systems and products that power global commerce and connect people everywhere to the vital goods and services they need every day.
Working at Mastercard means being part of a unique culture. Inclusive and diverse, a rich collaboration of ideas and perspectives. A place that celebrates your strengths, values your experiences, and offers you the flexibility to shape a career across disciplines and continents. And the opportunity to work alongside experts and leaders at every level of the business, improving what exists, and inventing what’s next.
About the role
Software Engineers at Mastercard design and code artificial intelligence, cloud, and machine learning platforms that provide mission-critical insights to many of the world’s leading organizations and governments. As a Software Engineer, you will deliver these products and solutions with speed and agility as part of a small team. This will involve developing high-performing, highly scalable software solutions and products for some of the world’s top brands. Specific tasks vary depending on the project and the business unit that you join in.
All staff at Mastercard are expected to demonstrate 'Mastercard Way' cultural values every day - own it, simplify it, sense of urgency, thoughtful risk-taking, unlock potential, and be inclusive – with a relentless focus on our customers. As a Software Engineer II at Mastercard, you are expected to perform the following general responsibilities:
• Own tasks (dev, test, deployment) at an application/software component level
• Able to troubleshoot and refactor existing code
• Adopt new languages and architecture patterns needed for the work
• Influence the decisions made by the team
• Assist peers and less experienced members
All about you
It is not expected that any single candidate would have expertise across all these areas.
• Has strong programming skills in three or more languages (e.g., C, C+, C#,
Java, JavaScript, SQL); familiar with secure coding standards (e.g., OWASP,
CWE, SEI CERT) and vulnerability management
• Understands and implements standard branching (e.g., Gitflow) and peer
review practices; Apply tools (e.g., Sonar, Zally, Checkmarx) and techniques
to scan and measure code quality and anti-patterns as part of development
activity; understands and builds test code at the unit level, service level, and
integration level to ensure code and functional coverage
• Understand the basic tenets of building and running mission-critical software
capabilities (security, customer experience, testing, operability, simplification,
service-oriented architecture)
• Understand different application patterns to implement different types of
business processes (e.g., APIs, event-driven-services, batch-services, web-
applications, microservices); understands secure network protocols to protect
data in transit (e.g., IPSec, TLS, PGP, others)
• Understands Continuous Integration (CI) and Delivery (
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