CI Systems Engineer - APIs and UI Services

Overview

Apple's Software Developer Workflows team delivers fast, reliable CI systems that make Apple's software easier to develop and ship. We believe that streamlined development unlocks creativity, innovation, and potential for developers. We're looking for an engineer to join our APIs and UI Services team, where you'll build and maintain the foundational services and interfaces that enable Apple’s software engineers to build, test, and validate code changes.

We value diverse perspectives and unique skills. More than specific experience, we seek an engineer passionate about building great software, continuous learning, and solving complex technical problems.

In this role, you ll work on both backend APIs and frontend services that form the backbone of Apple's CI infrastructure. You'll design systems that scale reliably, maintain services that integrate with diverse workflows, and improve the developer experience for teams across the company. Your contributions will directly impact how efficiently Apple's engineers can validate and ship code. Success requires flexibility, proactivity, and thriving in a supportive environment with challenging problems.

You'll need excellent judgment for timely technical decisions, ability to collaborate effectively on design discussions, and strong technical depth to make informed tradeoffs.

• Design and maintain APIs for Apple’s CI services, supporting diverse project and pipeline configurations
• Develop and enhance services that integrate with developer workflows
• Build and maintain services that initiate CI builds from multiple sources, ensuring reliable invocation across various use cases
• Implement UI features and backend services that improve the log viewing and analysis experience, helping developers quickly identify and diagnose issues
• Develop systems that optimally annotate PRs with build and test results
• Build services that extract and surface relevant failure information from logs to support failure analysis and developer productivity
• Provide on-call support to assist customers, troubleshoot issues, and maintain system reliability

• BS in Computer Science or equivalent professional experience
• 2+ years of software engineering experience, preferably focused on API development, backend services, or platform infrastructure
• Proficiency in languages suited to backend systems work (Go, Python, Java, Scala, C/C++, etc.)
• Proven ability to work independently on complex problems and collaborate effectively on team initiatives
• Strong communication skills to collaborate with diverse teams and explain technical decisions clearly
• Demonstrated experience in designing or contributing to systems that handle scale, reliability, and integration across multiple services

• Deep expertise in API design, RESTful services, or microservices architecture
• Experience building or maintaining API gateways, authentication systems, or authorization frameworks
• Proficiency with frontend frameworks and technologies for building developer-facing UIs (React, Type Script, etc.)
• Experience with event-driven architectures, message queues, or asynchronous processing systems
• Problem-solving approach to integrating disparate systems and building reliable service-to-service communication
• Attention to detail and quality mindset regarding API contracts, error handling, and reliability
• Experience with CI/CD systems, build pipelines, or developer platform infrastructure
• Familiarity with observability tools, logging systems, or distributed tracing for debugging production issues
• Background with version control systems integration and SCM-related workflows
• Knowledge of macOS or iOS development environments and build processes
• Familiarity with on-call rotations, incident response, or production support

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 $147,400 and $272,100, and your base pay will depend on your skills, qualifications, experience, and location.

Apple…