We are looking for a detail-oriented Senior Frontend Engineer to develop web-based annotation tools using React and TypeScript. This role focuses on creating responsive, high-quality interfaces that enhance annotator productivity globally. The ideal candidate will value design quality and collaborate closely with product and design teams. You will lead the design and development of sophisticated annotation tools that integrate intelligent AI features.

• 5+ years of experience building and scaling production web applications in React and TypeScript.
• Expertise with modern frontend build tools and styling frameworks such as Vite, Webpack, and Tailwind CSS.
• Proven ability to translate design specifications into pixel-perfect UI implementations.
• Demonstrated experience collaborating with product managers, designers, and end-users.
• Solid understanding of frontend architecture and modular design principles.
• Experience designing or implementing multi-tool or modular frontend systems.
• Expertise building annotation, labeling, or complex data-visualization tools.
• Experience integrating AI/ML models or SDKs into frontend applications.
• Strong performance optimization skills in data-heavy, real-time, or media-rich web applications.
• Experience developing or maintaining shared design systems or component libraries.
• Proficiency using AI-assisted development tools to accelerate coding tasks.

• Design and implement modular, scalable frontend architectures for annotation workflows.
• Create responsive interfaces that enable global annotators to work efficiently.
• Collaborate directly with product managers, designers, and end-users to understand workflows.
• Translate requirements into elegant web applications and continuously improve tools.
• Implement pixel-accurate designs and make user-centered UI/UX decisions.
• Shape frontend systems that balance user experience, maintainability, and performance.

• 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.