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Company: Mastercard
Location: Lisbon, Lisbon, Portugal
Career Level: Internship
Industries: Banking, Insurance, Financial Services

Description

Our Purpose

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.

Title and Summary

Intern, Software Engineering - Summer Internship Program 2025, 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 employee 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. Your summer experience will build on your business skills and contribute to the company's goals and objectives.

Internship Program
Mastercard's summer internship program provides emerging talent with projects that will enhance skills as well as contribute to the department's goals and objectives. In this program, you will participate in:

• Networking events, mentorship opportunities, and hearing from senior leaders
• Volunteer and team-building opportunities
• Formal performance assessments
• End-of-summer presentations to peers and Mastercard leadership

Role Description
As a Software Engineer Intern, you will:
• Be a member of a high-performing team of software development professionals.
• Our tech stack is Java/Spring Boot.
• Write high-quality code with a focus on security, design, and maintainability.
• Be exposed to various phases of software development from design through rollout.
Note: specific responsibilities and development tools/languages used will vary based on team placement.

Qualifications
• Currently enrolled in a bachelor's/master degree program majoring in Computer Science or a related field
• Graduation Date between December 2025 - August 2026
• Exposure to algorithms, data structures, and core computer science concepts
• Proficiency in one or more programming languages such as Java, JavaScript, C#, Python, etc.
• Exposure to automated tests to verify code correctness and expected behavior.
• Knowledge of source control management (e.g., git), deployment, and task management tools.
• Strong analytical and excellent problem-solving skills and familiar with the role of debugging tools and information which diagnose issues such as stack traces, memory profiling, code tracing, etc.

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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