Senior Software Engineer (Backend), Retail & Marcom Engineering

Apple • Sunnyvale, CA

3d

About The Position

The Carrier Services team within Retail and Marcom Engineering (IS&T) builds the platform connecting Apple’s online and retail experiences with wireless carriers. The platform enables customers to activate devices, select plans, and complete purchases, and supports millions of customer transactions while integrating with major carriers worldwide.

As a Software Engineer on the team, you will build and support backend services for device activation and carrier experiences across Apple’s online and retail channels. You will work across the full development lifecycle, including design, implementation, testing, release, and production support. In collaboration with carrier partners and cross-functional teams, you will help deliver reliable customer experiences worldwide.

You will design, develop, and maintain scalable backend services and APIs supporting order management, pricing, and device activation. You will work with engineering, QA, product, and carrier partners to solve complex problems, improve service performance and reliability, and troubleshoot production issues. You will also contribute to technical design discussions, review code, and help strengthen the team’s engineering practices.

Requirements

• At least 5 years of professional software development experience.
• At least 2 years of experience with Java, including concurrency, memory management, and performance optimization.
• Experience building production applications with the Spring ecosystem, including dependency injection, auto-configuration, reactive programming with WebFlux, and Spring-based microservice design patterns.
• Experience designing and implementing APIs, including RESTful principles, gRPC, GraphQL, contract-first design, API versioning, gateway patterns, rate limiting, backward compatibility, and long-term API evolution.
• Experience with message-driven and event-driven architectures, including messaging systems, event sourcing, CQRS, and reliable asynchronous communication between distributed services.
• B.S. in Computer Science, Computer Engineering, or a related technical field, or equivalent professional work experience.

Nice To Haves

• Experience with relational and NoSQL databases, including schema design, query optimization, and performance tuning such as execution plan analysis, indexing strategy, and query rewriting.
• Knowledge of networking concepts, protocols, and infrastructure, including HTTP/HTTPS, TCP/IP, CDN, load balancing, edge computing, DNS, and Zero Trust architecture.
• Experience implementing authentication and authorization systems, including OAuth2, OIDC, SAML, JWT, SSO, RBAC/ABAC, and integration with identity providers and directory services.
• Comfort using CI/CD tools to build, test, deploy, and release containerized software applications on cloud-based Kubernetes platforms such as AWS EKS, GCP GKE, or Azure AKS.
• Experience with caching strategies and in-memory data technologies, including cache invalidation, distributed caching, and session management for high-throughput applications.

Responsibilities

• Design, develop, and maintain scalable backend services and APIs for order management, pricing, and device activation.
• Work across the development lifecycle, from design and implementation through testing, release, and production support.
• Collaborate with engineering, QA, product, and carrier partners to solve complex problems.
• Improve service performance and reliability, and troubleshoot production issues.
• Contribute to technical design discussions and review code.
• Help strengthen engineering practices across the team.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior