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MA

Senior Software Engineer-1

Mastercard
New York City, United Statesfull_timeVerifiedPosted 24 Oct 2025
💰 $138,000/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

Senior Software Engineer-1

Who 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

* Participate in team prioritization discussions with Product/Business stakeholders
* Estimate and own delivery tasks (design, dev, test, deployment, configuration, documentation) to meet the business requirements
* Automate build, operate, and run aspects of software
* Drive code/design/process trade-off discussions within their team when required
* Report status and manage risks within their primary application/service
* Drive integration of services focusing on customer journey and experience
* Perform demos/acceptance discussions in interacting with Product owners
* Understands operational and engineering experience, actively works to improve experience and metrics in ownership area
* Develop complete understanding of end-to-end technical architecture and dependency systems
* Drive adoption of technology standards and opinionated frameworks, and review coding, test, and automation work of team members
* Mentor and guide new and less-experienced team members
* Identify opportunities to improve an overall process and trim waste
* Share and seek knowledge within their Guild/Program to drive reuse of patterns/libraries/practices and enhance productivity


All About You

* Has ability to write secure code in three or more languages (e.g., C, C+, C#, Java, JavaScript) and familiar with secure coding standards (e.g., OWASP, CWE, SEI CERT) and vulnerability management
* Understands the basic engineering principles used in building and running mission critical software capabilities (security, customer experience, testing, operability, simplification, service-oriented architecture)
* Understands internals of operating systems (Windows, Linux) to write interoperable and performant code
* Able to perform debugging and troubleshooting to analyze core, heap, thread dumps and remove coding errors
* Understands and implements standard branching (e.g., Gitflow) and peer review practices
* Has skills in test driven and behavior driven development (TDD and BDD) to build just enough code and collaborate on the desired functionality
* Understands use cases for advanced design patterns (e.g., service-to-worker, MVC, API gateway, intercepting filter, dependency injection, lazy loading, all from the gang of four) to implement efficient code
* Understands and implements Application Programming Interface (API) standards and cataloging to drive API/service adoption and commercialization
* Has skills to author test code with lots of small

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Company

Mastercard

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