Software Engineer II - Java

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 II - Java

Overview
The Java Engineer is a hands on executor responsible for building, testing, and operating backend services under the guidance of Senior Engineers. This role focuses on implementing Spring Boot services, CRUD workflows, and API driven features that support Commerce Media’s platform capabilities.
Java Engineers at Mastercard operate with an AI first development mindset, using AI coding and reasoning tools as part of their day to day workflow to accelerate delivery, improve code quality, and deepen technical understanding—while learning when to rely on human judgment and established architectural guidance.

Role
• Implement backend services using Java and Spring Boot following established designs, patterns, and architectural direction.
• Build and extend CRUD functionality backed by relational or NoSQL data stores.
• Develop and consume RESTful APIs as part of API driven workflows.
• Apply AI coding tools (e.g., GitHub Copilot, ChatGPT, Claude, similar assistants) to:
o Accelerate feature implementation and refactoring
o Generate and improve unit and integration tests
o Assist with debugging, error analysis, and code comprehension
o Improve documentation and inline code clarity
• Write unit and integration tests to validate correctness and prevent regressions.
• Partner with Senior Engineers to break down work, validate approaches, and execute features effectively.
• Participate in code reviews, incorporating feedback from both peers and AI assisted suggestions under senior guidance.
• Assist with debugging, defect resolution, and production support as needed.
• Follow established standards for security, observability, maintainability, and responsible AI usage.

All About You
• You are a reliable engineer who enjoys turning clear requirements into working software.
• You value clean code and are eager to learn best practices from senior teammates.
• You are comfortable using AI coding tools as a learning accelerator, not a shortcut.
• You know when to trust AI generated output and when to ask for human review.
• You take ownership of your work and see tasks through to completion.
• You are curious, coachable, and motivated to grow into more complex system ownership.

Experience
• 3–5 years of professional experience building backend applications in Java.
• Working knowledge of Spring Boot and RESTful service development.
• Experience implementing CRUD based applications with database persistence.
• Familiarity with API driven system design and service to service communication.
• Demonstrated use of AI coding assistants for development, testing, and learning.
• Basic understanding of database modeling and query usage.
• Exposure to containerized development environments (Docker).
• Interest in learning observability, performance tuning, and production ownership.

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.