Senior Software Engineer – iOS & Cross-Platform Mobile Development

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 – iOS & Cross-Platform Mobile Development

Overview:
Prepaid Management Services is a division within MasterCard dedicated to delivering Prepaid Solutions, including our multi-Currency Cash Passport product. While it has traditionally served the travel industry, this business unit is now expanding the global reach of prepaid offerings through innovative, market-leading solutions in collaboration with major global brands. We are seeking a highly skilled and experienced Senior Software Engineer with a strong background in iOS mobile application development using Native (Swift/Objective-C), React Native, and Kotlin Multiplatform Mobile (KMM) technologies. The ideal candidate will be passionate about building high-quality, scalable mobile applications and have a solid understanding of mobile architecture and cross-platform development practices. Knowledge of the Android platform and its release process is a strong plus.
Key Responsibilities:
• Design, develop, and maintain iOS applications using Swift/Objective-C, React Native, and Kotlin Multiplatform.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Ensure the performance, quality, and responsiveness of applications.
• Write clean, maintainable, and testable code following best practices.
• Participate in code reviews and mentor junior developers.
• Work closely with product managers, designers, and QA to deliver high-quality mobile experiences.
• Optimize applications for maximum performance and scalability.
• Stay up to date with the latest mobile development trends and technologies.
Required Skills & Qualifications:
• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
• 5+ years of professional experience in mobile application development.
• Strong proficiency in iOS Native development (Swift/Objective-C).
• Hands-on experience with React Native and Kotlin Multiplatform Mobile (KMM).
• Solid understanding of mobile UI/UX principles and best practices.
• Experience with RESTful APIs, third-party libraries, and version control tools (e.g., Git).
• Familiarity with CI/CD pipelines and mobile testing frameworks.
Desirable:
• SDLC support tools (ALM, Confluence, Sharepoint)
• Experience using npm, and CSS
• Code packaging and publishing automation
• Financial services experience (Cards/PCI)
Preferred/Nice to have Skills:
• Basic knowledge of Android platform architecture and development.
• Experience with the Android application release process (Play Store submission, signing, versioning).
• Exposure to Agile/Scrum development methodologies.
• Knowledge of performance tuning and memory management in mobile apps.
Personal Qualities:
• Flexible and Adaptable
• Excellent Problem Solver
• Strong Communication skills both verbal and written
• Self-Starter with Initiative
• Leadership and Mentorship skills
• Detail-Oriented and Quality-Focused
• Team-Oriented
• Ethical and Responsible

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.