Sr Software Engineer, Retail & Marcom Engineering

Do you want to help build some of the largest and most consequential enterprise and customer technology systems in the world? Join Apple's Information Systems and Technology (IS&T) organization.

IS&T is the engine behind everything Apple does for customers and for the people who build for them. It's Apple's central nervous system. Supporting 2.5 billion active Apple devices, processing billions of secure transactions, and keeping the technology that defines modern life running flawlessly, IS&T makes the impossible feel effortless.

Retail and Marcom Engineering, an IS&T team, builds and operates the systems and experiences that connect Apples products with its customers. The team owns the technology behind both Apples online and physical stores and drives the interactive marketing experiences and tools that keep creative operations moving. Together, those functions deliver the technology behind every product story Apple tells and every purchase a customer makes. Financing & Retail Systems team is looking for an experienced Server-side Software Engineer. In this position, you will have the opportunity to partner with our extraordinary team of QA, product and external partners to deliver reliable, seamless experiences for Apple customers & Retail Store employees around the world.

As part of the team, you will be joining a hands-on backend development team that cultivates creativity and generates novel, highly scalable, secure & fault tolerant solutions to deliver engineering perfection. 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 support.B.S. in Computer Science, Computer Engineering, or a related technical field, or equivalent professional work experience. 5+ years proven experience developing software in a professional capacity. Longer experience preferred. 2+ years proven experience with Java, including proficiency in concurrency, memory management, and performance optimization techniques. Proficiency in OOP principles, data structures, algorithms, and software design patterns (e.g. GoF), with a proven focus on implementing testable, maintainable, and extensible backend code. 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. 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).Track record of leading software projects within a team as a tech lead (TL), while mentoring software engineers. Hands-on experience leveraging GenAI coding tools (e.g., Claude, Copilot, Codex) to accelerate the software development lifecycle, enhance code quality, and streamline debugging and testing processes. 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.). 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. 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.