Senior Software Engineer

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

Overview
•  Corporate Security Engineering is a global Mastercard team that designs, builds and supports service platforms that provide cryptographic, key management and certificate management functions utilized by global Mastercard application teams.
•  The Corporate Security Engineering team develops and supports shared security services to be leveraged across Enterprise by consuming application teams. Our inventory of shared services include cryptography, certificate management, code signing, and key management.
•  The Corporate Security Engineering Senior Software Engineer will be responsible for the component design, development and integration of digital security technologies and solutions to be leveraged by the enterprise.  
•  The Corporate Security Engineering Senior Software Engineer will define requirements for new applications and enhancements, adhering to standards, processes and best practices.
•  Are you motivated to protect Mastercard’s Assets?
•  Are you interested in working in a fast-paced, challenging technical environment?

Role
We are seeking a talented and detail-oriented Level 7 Software Engineer to contribute to the development and enhancement of our key management system. This system is built using Java 21, employs a hexagonal architecture, and integrates multiple microservices. The Level 7 Software Engineer will focus on hands-on coding and development tasks, ensuring high-quality, secure, and efficient software.
We are looking for an intermediate-level engineer who wants to deepen their technical expertise while contributing to cutting-edge solutions. The system leverages Postgres as the primary database, with microservices communicating via Kafka, and includes cryptographic operations using Hardware Security Modules.

Coding and Development
• Write, maintain, and improve high-quality code for microservices built with Java 21.
• Implement and maintain features using frameworks such as Spring Boot and Hibernate.
• Build RESTful APIs and ensure they are secure, efficient, and adhere to architectural guidelines.
• Develop and optimize database interactions with Postgres, focusing on performance and reliability.
• Participate in integrating and optimizing cryptographic operations with Hardware Security Modules.
Testing and Quality Assurance
• Write and maintain unit, integration, and performance tests for all deliverables.
• Perform debugging, troubleshooting, and resolving of issues in development and production environments.
Collaboration
• Work closely with team leads, senior engineers, and peers to understand requirements and deliver solutions.
• Participate in code reviews to maintain code quality and consistency across the project.
• Collaborate with the QA and DevOps teams to ensure smooth deployment and system reliability.
Documentation
• Document technical implementations, configurations, and best practices in Confluence or other tools.
• Ensure code is properly commented and adheres to team standards.
Tool Proficiency
• Utilize the Atlassian suite (Jira, Confluence) for task tracking and documentation.
• Use GIT as the source control management (SCM) tool, following best practices for branching and merging.
Technical Skills
• Programming Languages: Proficiency in Java (version 21 preferred).
• Frameworks: Solid experience with Spring Boot, Hibernate, and related tools.
• Architectures: Understanding of hexagonal architecture and microservices design principles.
• Messaging Systems: Familiarity with Kafka for asynchronous communication.
• Database: Proficiency in Postgres, including schema design and query optimization.
• Cryptography: Basic understanding of cryptographic operations.
Tool Proficiency
• Experience with Atlassian suite (Jira, Confluence).
• Strong knowledge of GIT as a source control management (SCM) tool.
Soft Skills
• Strong attention to detail and commitment to delivering high-quality work.
• Excellent problem-solving skills and ability to work independently or in a team.
• Effective communication and collaboration skills.
Preferred Qualifications
• Familiarity with DevOps practices and CI/CD pipelines.
• Experience in secure systems or key management systems.

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.