Senior Backend Software Engineer (Security, Reliability)

Apple • Cupertino, CA

1d

About The Position

The Apple Services Engineering (ASE) Commerce group is looking for an extraordinary back-end Java software engineer to join our Account Services software engineering team. The Commerce team provides the transactional engine for App Store, Apple Music, Apple TV+ and more. Our platform is the highest volume digital content store in the world, serving billions of transactions daily in more than 130 countries. We strive to provide a flawless purchase and subscription experience for our millions of customers and developers all over the world! Description As a Software Engineer on the Account Services team, you'll build and evolve the secure, high-scale systems that power our platform's most critical user flows. You'll design and implement modern authentication protocols, strengthen our security posture through industry-leading best practices, and modernize legacy systems by adopting the newest technologies.This role sits at the intersection of Security Engineering, Fraud Prevention, Infrastructure, Product, Customer Support, and more. You'll be responsible for developing secure account experiences, preventing fraud and abuse across the platform, and rapidly resolving customer-impacting issues. This position demands someone who can operate in ambiguity, make sound technical decisions under pressure, and translate complex security and reliability requirements into scalable, maintainable systems.

Requirements

• 5+ years of software engineering experience implementing and maintaining critical systems at scale.
• Outstanding analytical problem-solving, debugging, and diagnostic skills.
• Willing to take ownership and set direction, and thrive navigating any ambiguity in your projects.
• BS degree, preferably in Computer Science or related experience.
• MS or equivalent preferred.

Nice To Haves

• Experience with security protocols and controls such as OAuth2/OIDC, JWT, mTLS, PKCE, HSM/KMS key management, and secrets management (e.g., Vault).
• Strong understanding of authentication and authorization mechanisms, secure session management, token lifecycles, and abuse-defense patterns.
• SRE/infra experience with load balancing, autoscaling, traffic shaping, distributed systems debugging, and incident response.
• Proficiency with observability tooling - metrics, logs, and performance troubleshooting.
• Database expertise in relational systems (e.g. Oracle), including schema design, indexing, query optimization, and replication strategies.
• Experience designing and implementing REST/RPC APIs and backend services at scale.
• Strong commitment to automated testing, including integration, load, and end-to-end testing.

Responsibilities

• Design, build, and maintain secure, scalable account systems end-to-end - including building RESTful APIs, microservices, databases, automated tests, tooling, monitoring and alerting dashboards, etc.
• Partner with engineering and cross-functional teams to architect solutions and coordinate complex programs.
• Take ownership of a broad domain and operate as the subject-matter expert others rely on for clarity and direction.
• Triage and debug customer-impacting issues, diving into unfamiliar areas as needed, and turning ambiguous problems into clear, actionable fixes.
• Modernize legacy systems by adopting new technologies and implementing strong security best practices.
• Mentor and support other teammates to help build a cohesive, high-performing engineering team.

Benefits

• Comprehensive medical and dental coverage, retirement benefits, a range of discounted products and free services, and for formal education related to advancing your career at Apple, reimbursement for certain educational expenses — including tuition.
• Additionally, this role might be eligible for discretionary bonuses or commission payments as well as relocation.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Number of Employees: 5,001-10,000 employees