Senior Software Engineer - Apple Pay Cryptography Services

Imagine what you could do here! At Apple, great ideas have a way of becoming phenomenal products, services, and customer experiences very quickly. Are you passionate about building massively scalable services that surprise and delight? Do you have a natural curiosity for learning new technologies? If you are passionate about software engineering, crave building systems that run at scale, love solving meaningful problems, and thrive in a fast-paced environment, then we would love to hear from you!

Description

Apple Pay brought mobile payment to millions of customers, and it's just the beginning. We are looking for engineers who are equally comfortable working at the bits and bytes level and designing state-of-the-art object-oriented web services. The people here at Apple don't just build products, we craft the kind of wonder that's revolutionized entire industries. It's the diversity of those people and their ideas that support the innovation that runs through everything we do, from amazing technology to industry-leading environmental efforts.

We are seeking a software engineer to support feature development and delivery within the Apple Pay platform. This role will work as part of an existing engineering team on well-defined workstreams, delivering production-quality service and client code against agreed milestones. Much of this work sits close to the cryptographic systems that keep payments and customer data secure from key management and HSMs to tokenization.

Responsibilities

Define, implement, test and operate new features for Apple Pay Write thread-safe, performant, object-oriented, and inherently testable code Build and maintain unit and components test coverage for delivered work Participate in code reviews, design reviews, and sprint planning with the team Collaborate with client teams on feature integration and issue resolution Debug and resolve defects in existing services, including production issues assigned during the engagement close Work with cryptographic primitives and HSM-backed key operations as part of day-to-day feature delivery Document delivered components and hand off knowledge at engagement close

Minimum qualifications

5+ years of professional software engineering experience Proficiency in Java/Kotlin Experience building and operating RESTful web services at scale Strong debugging skills across the stack, from network layer to application logic Demonstrated experience with automated testing and CI/CD pipelines Ability to work independently against written specifications with minimal supervision BS or MS degree with software development experience or equivalent experience Basic hands-on cryptography experience, or strong fundamentals and a willingness to ramp up quickly

Preferred qualifications

Experience in payments, financial services, or transaction processing systems Familiarity with secure element, tokenization, or cryptographic protocols Experience with AWS Solid understanding of applied cryptography concepts and primitives (symmetric/asymmetric encryption, signing, key management) Hands-on experience working with Hardware Security Modules (HSMs)