Lead Distributed Systems Engineer - Services Special Projects

Cupertino, California, United StatesSenior$262,500 - $394,00015+ years

Apple's Special Services Team is seeking a Lead (Principal) Distributed Systems Engineer to design and build massively scalable, highly available services that power experiences for Apple customers both now and in the future.

In this Lead role, you will build and operate high-throughput, low-latency backend services that ingest, process, and serve data at scale across a range of mission-critical workloads — from real-time transactions to analytics and content delivery. You'll also drive the evolution of a multi-tenant platform, including AI/ML-powered services, by shipping new capabilities, scaling what exists, and applying distributed-systems best practices from design through production.

Lead the design and building of new features and services with a focus on scalability, responsiveness, fault tolerance, and high availability.
Oversee large-scale backend services that are resilient to failures, without breaking downstream consumers.
Lead the partnership with other Apple teams to ensure we ship customer-facing features which are performant, well-modeled service APIs.
Be the lead technical guide and mentor for this growing team, fostering a positive culture of learning, growth, and innovation.
Lead high-level discussions across Apple's ecosystem

Master's degree in Computer Science or a related field
15+ years of professional software development experience building scalable, distributed systems in production, with at least 5 in a Principal or Sr. Staff Level role.
Experience building, authoring, and operating large-scale, multi-tiered distributed systems and customer-facing web services: including API design, authentication, authorization, scaling for high availability, concurrency, and reliability.
Strong understanding of concurrency and multi-threaded programming, fundamental data structures, and efficient algorithm design
Strong proficiency in Java; working knowledge of a second systems language (Go, C++) is a plus. Solid OO analysis and design skills.
Strong proficiency in application frameworks (Spring boot)
Hands on experience with JVM performance tuning and profiling - GC selection/tuning, JFR, async-profiler, heap/thread-dump analysis for low-latency services.
Hands-on with async and reactive JVM stacks: Netty, Project Reactor, RxJava, Vert.x, or Micronaut/Quarkus.
Rigorous testing discipline with JUnit 5, Mockito, AssertJ, Testcontainers, and contract testing.
Hands on experience with build and dependency management with Gradle
Deep understanding of transactional consistency models - ACID semantics, with deep knowledge of tradeoffs between relational and NoSQL database technologies
Expertise with synchronous and asynchronous network I/O and RPC frameworks (gRPC)
Experience building and maintaining CI/CD pipelines (e.g., Jenkins, GitHub Actions, GitLab CI, or similar) for automated testing, build, and deployment of production services.
Experience with AWS or GCP and cloud-native tooling (Docker, Kubernetes) in the context of deploying scalable production grade services.
Experience with event streaming and queueing systems (specifically Kafka) and stream processing frameworks and high-throughput, append-only write paths for durable, queryable historical records.
Hands on Experience of leveraging data storage (Iceberg, Cassandra) and caching technologies (Redis) in Production services
Hands on experience with Serialization/schema tooling: Jackson, Protobuf, Avro, and Schema Registry
Experience identifying, triaging, and remediating security vulnerabilities in production services (dependency management, secure code review, threat modeling).
Full life-cycle development experience for a consumer product, from concept through deployment
Proven history of presenting technical and business concepts to Executive Leadership

Self-motivated, with strong collaboration and communication skills, and experience in a fast-paced, agile environment
Experience with machine learning systems, ML frameworks, libraries and algorithms
Familiarity with deployment and optimization of Large scale Production grade AI Services that require GPUs in the path of the transaction.
Hands-on experience deploying, serving, and optimizing LLMs or ML models directly in the transaction/request path
Experience with security and cryptography (e.g., TLS, X.509 certificates) identity and access management protocols (OAuth2/OIDC/SAML), and secure token/session lifecycle management.

At Apple, base pay is one part of our total compensation package and is determined within a range. This provides the opportunity to progress as you grow and develop within a role. The base pay range for this role is between $262,500 and $394,000, and your base pay will depend on your skills, qualifications, experience, and location.

Apple employees also have the opportunity to become an Apple shareholder through participation in Apple’s discretionary employee stock programs. Apple employees are eligible for discretionary restricted stock unit awards, and can purchase Apple stock at a discount if voluntarily participating in Apple’s Employee Stock Purchase Plan. You’ll also receive benefits including: 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. Learn more about Apple Benefits

Note: Apple benefit, compensation and employee stock programs are subject to eligibility requirements and other terms of the applicable plan or program.

Apple is an equal opportunity employer that is committed to inclusion and diversity. We seek to promote equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics. Learn more about your EEO rights as an applicant

At Apple, we believe accessibility is a fundamental human right. You’ll find that idea reflected in everything here — in our culture, our benefits and our digital tools. By welcoming as many perspectives as possible, we help you build a career where you feel like you belong.

Learn about accessibility in Apple’s workplace

Learn about reasonable accommodations for job applicants

Apple accepts applications to this posting on an ongoing basis.

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