Senior Software Engineer (Backend), Retail & Marcom Engineering

"Apple is where individual imaginations gather together, committing to the values that lead to great work. Every new product we build, service we create, or Apple Store experience we deliver is the result of us making each other's ideas stronger. That happens because every one of us shares a belief that we can make something wonderful and share it with the world, changing lives for the better. It's the diversity of our people and their thinking that inspires the innovation that runs through everything we do. When we bring everybody in, we can do the best work of our lives. Here, you'll do more than join something - you'll add something."

Carrier Services team under Retail and Marcom Engineering (IS&T), builds the platform that connects Apples online and retail experiences with wireless carriers, enabling customers to activate devices, select plans, and complete purchases. Our services support millions of customer transactions and integrate with major carriers worldwide. As a Software Engineer on the Carrier Services team, youll build and support the backend services that power device activation and carrier experiences across Apples online and retail channels. Youll work across the full development lifecycle, from design and implementation to testing, release, and production support. Working closely with carrier partners and cross-functional teams, youll help deliver reliable, seamless experiences for customers around the world.

What Youll Be Doing

Youll design, develop, and maintain scalable backend services and APIs that support order management, pricing, and device activation. Youll work with engineering, QA, product, and carrier partners to solve complex problems, improve service performance and reliability, and troubleshoot issues in production. Youll also contribute to technical design discussions, review code, and help strengthen engineering practices across the team.Design and build scalable backend services and APIs that support device activation, plan selection, pricing and order management with major carriers

Develop, test and deploy high-quality features across the full lifecycle, from technical design through release and production support

Integrate with carrier systems and internal Apple platforms, translating carrier requirements into reliable, well-documented solutions

Troubleshoot and resolve production issues, using logs and monitoring to find root causes and prevent them from recurring

Improve the performance, reliability and maintainability of existing services, including order, pricing and fulfillment flows

Collaborate with product managers, QA engineers, program managers and carrier partners to define requirements and deliver on schedule

Review code and contribute to design discussions, helping set engineering standards and mentor teammates

Write and maintain automated tests, documentation and runbooks so services stay easy to operate and support5+ years proven experience developing software in a professional capacity

2+ years proven experience with Java, including proficiency in concurrency, memory management, and performance optimization techniques

Experience building production applications with the Spring ecosystem (e.g. Spring Boot, Spring MVC, Spring Security, Spring Data, Spring Cloud, etc.), including proficiency in dependency injection, auto-configuration, reactive programming with WebFlux, and designing microservices using Spring-based patterns

Experience in API design and implementation, including proficiency in RESTful API principles, gRPC, GraphQL, contract-first design (e.g. OpenAPI/Swagger, Protobuf, etc.), API versioning strategies, gateway patterns, rate limiting, and designing APIs for backward compatibility and long-term evolution

Experience with message-driven and event-driven architectures, including proficiency in messaging systems (e.g. Kafka, RabbitMQ, ActiveMQ, etc.), event sourcing, CQRS patterns, and designing reliable asynchronous communication between distributed services

B.S. in Computer Science, Computer Engineering, or a related technical field, or equivalent professional work experience Experience using relational (e.g. Oracle, Postgres, MySQL, etc.) and NoSQL (e.g. Cassandra, MongoDB, etc.) databases, including proficiency in schema design, query optimization, performance tuning (e.g. execution plan analysis, indexing strategy, and query rewriting)

Solid knowledge of networking concepts, protocols, and infrastructure (e.g. HTTP/HTTPS, TCP/IP, CDN, load balancing, edge computing, DNS, Zero Trust architecture, etc.)

Experience implementing authentication and authorization systems, including proficiency in identity protocols (e.g. OAuth2, OIDC, SAML, JWT, etc.), single sign-on (SSO) architectures, role-based and attribute-based access control (RBAC/ABAC), and integration with identity providers and directory services

Comfortable using CI/CD tools to build, test, deploy, and release containerized software applications on cloud-based Kubernetes (e.g. AWS EKS, GCP GKE, Azure AKS, etc.)

Experience with caching strategies and in-memory data technologies (e.g. Redis, Memcached, Hazelcast, Ehcache, etc.), including proficiency in cache invalidation patterns, distributed caching architectures, and session management for high-throughput applications