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Salary
$55k – $107k per year (Estimated)
Location
In office (Lisbon)
Seniority
Senior
Employment
Full-Time

Confirmed on the employer's own hiring board on Sep 23, 2026. First seen by Alion on Sep 23, 2026. Mastercard scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Mastercard is an American payments technology company whose origins date to 1966, when a group of banks formed the Interbank Card Association to compete with BankAmericard. Like its main rival it does not issue cards or extend credit; it operates the network that authorises, clears and settles transactions between issuing banks, acquirers and merchants in more than two hundred countries. Headquartered in Purchase, New York, the company has built a large services business alongside the core network, covering fraud and identity products through its Ethoca and RiskRecon acquisitions, open banking, consulting and loyalty programmes.

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 - Java/SpringOverview

Our team’s mission is to make payments easy, fast and as secure as possible. That’s why we’ve developed technology that enables mobile payments (Apple Pay, Google Pay, Samsung Pay, Garmin Pay, etc.) and secure, tokenized remote commerce payments. We call the set of services delivering this "MDES”. We’ve experienced incredible success and growth, with 10s of billions of transactions being processed each year, however now we are focusing on ensuring the success continues as we scale MDES even further.

Our focus is on the best possible customer experience. We’re making our services faster, more reliable and more scalable whilst meeting emerging on-soil regulation and increasing demand across the globe. Right now, our applications are deployed into our on-premises infrastructure, but to meet these challenging goals we need them to be deployable into the public cloud. That’s where you come in.

We are searching for new team members with first-hand experience of developing and deploying secure, performant, reliable, resilient, distributed applications both in private and public cloud platforms. You will have the boundless energy, enthusiasm and drive to deliver the next phase of this mission-critical transformation.

Role

As a Senior Software Development Engineer you will:

  • Work within a collaborative team of product managers and software engineers;
  • Develop microservices-based solutions, focused on achieving positive customer outcomes, customer journeys and customer experience;
  • Take true ownership and responsibility for the software that you develop, its maintenance characteristics and champion our adoption of technology standards and opinionated frameworks.

All About You

Essential knowledge, skills & attributes

You should apply if:

  • You’re excited to build applications that have global impact and are used daily by 100s of millions of people.
  • You have worked on server-side, backend applications and technologies;
  • You have experience developing using Java - Java is the main language we use at Mastercard;
  • You’ve used the Spring Framework (or similar) - it’s what we use to create our cloud-ready applications;
  • You’ve built Event Driven applications;

Additional/Desirable capabilities

It would also be great if:

  • You’ve leveraged AI as a development companion to build applications.;
  • You have first-hand knowledge of a wide range of technologies - databases, messaging, caches, API gateways, networking, pipelines - such as Jenkins, Splunk, Oracle, Apache Kafka, Redis or others

Our teams and values:

We work within small collaborative teams consisting of software engineers and product managers;

Our customer’s success is at the core of what we do;

We are diverse and inclusive teams from many backgrounds and with many experiences;

We believe in doing well by doing good through inclusive growth and making ethical and environmentally responsible decisions.

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.

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