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

• Graduate Software Engineer I, Lisbon
• Portugal

Overview:

Mastercard works to connect and power a sustainable and inclusive global economy. We are a vehicle for commerce, a connection to financial systems for the previously excluded, a technology innovation lab, and the home of Priceless®. We ensure every EE has an opportunity to be a part of something bigger and to change lives. We believe in connecting everyone to endless, priceless possibilities.

About the Team:

Mastercard software engineering teams are obsessed with security, reliability, performance, and are driven to deliver solutions that delight our customers.

We are looking for talented software engineers to develop advanced technologies and applications that are revolutionizing payments.

Software engineers at Mastercard build the systems that process transactions, analyze data, and detect fraud to gain insight into the direction of the economy on behalf of our customers. We are focused on building simple, safe, and smart solutions that instill trust in every interaction. Our industry expertise is enhanced by our commitment to being a force for good in the world and to doing well by doing good.

Role Description:

As a Software Engineer I, you will have the opportunity to:

• Write high-quality code with a focus on security, design, and maintainability.

• Contribute to all phases of software development from design through rollout.

• Find real-life solutions for our clients and the world.

Note: specific responsibilities and development tools/languages used will vary based on team placement.

Qualifications:

• Currently enrolled in a bachelor’s or accelerated master’s program in computer science or software engineering graduating between Dec 2025 – July 2026

• Project-based experience (personal, academic, internship) in one or more general-purpose programming languages such as: Java, JavaScript, C#, Python, etc.

• Familiarity using persistent data stores such as relational databases, NoSQL, etc. Uses defensive coding, logging, and alerts to help prevent issues.

• Strong analytical and problem-solving skills and familiarity with common debugging tools and information to diagnose issues such as stack traces, memory profiling, code tracing, etc., using all debugging techniques/ tools and logs.

IMMIGRATION STATEMENT IF NEEDED:

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.