The Senior Software Engineer will join Apple's UI Rendering team, focusing on developing rendering technologies that enhance visual experiences across all Apple platforms. This role involves driving the Core Animation graphics compositing and rendering engine, collaborating with designers and engineers to bring innovative visual concepts to life. The engineer will work on foundational compositing systems and advanced visual effects, ensuring high-quality rendering performance. This position is ideal for someone passionate about solving complex graphics challenges and creating world-class visual experiences.

• 5+ years of experience in software development, including software release management and integration processes
• 3+ years of experience with real-time rendering and computer graphics
• Strong background in C/C++ programming and shader development
• Hands-on experience with Metal or modern graphics APIs such as Vulkan or DirectX
• Experience with layer-based rendering systems or scene graph architectures
• Foundational understanding of Operating Systems, Computer Architecture, and CPU/GPU programming including memory subsystems
• Strong debugging and triaging skills for complex, multi-layered systems issues
• Experience with graphics performance analysis and optimization techniques
• Excellent collaboration skills with cross-functional teams on complex large-scale projects
• Bachelor's or Master's degree in Computer Science or related field, or equivalent experience
• Deep expertise with Metal Shading Language and advanced graphics programming
• Knowledge of compositing algorithms, color management, HDR, and wide color gamut workflows
• Experience with CPU/GPU synchronization and multi-threaded rendering architectures
• Experience with client/server or multi-process graphics architectures
• Experience with Mac or iOS application development using Swift or Objective-C
• Familiarity with GPU profiling tools and performance optimization for mobile platforms
• Experience shipping consumer graphics products at scale
• Experience with automated testing frameworks for graphics rendering

• Design, architect, and implement Core Animation UI rendering features and compositing technologies across all Apple platforms
• Partner with HI designers and framework teams to enable new visual experiences and design language evolution
• Collaborate with Metal graphics framework and GPU and Display teams to leverage and influence platform capabilities for rendering innovation
• Make critical technical decisions balancing visual quality, implementation complexity, and platform constraints
• Develop tools and workflows that enable rapid iteration from design concept to production-ready rendering features
• Ensure rendering quality, correctness, and visual fidelity across diverse content and platform configurations
• Contribute to long-term technical strategy and influence hardware/software roadmaps to enable future rendering capabilities and visual experiences
• Optimize rendering performance and power efficiency across Apple's diverse hardware ecosystem

• Employees at Apple are often offered comprehensive benefits that support physical and mental well-being—flexible medical plans, confidential counseling, onsite wellness centers at major campuses, and resources for fitness and daily life. Families typically receive fertility support, paid parental leave with gradual return, caregiving leave, and dependent-care guidance, while financial perks commonly include stock grants (with purchase discounts), 401(k) matching, and income-protection coverage. Employees also see robust time off, Apple University learning and tuition reimbursement, donation matching and paid volunteer hours, and deep product and partner discounts.