Apple · 4 months ago
Senior Frontend Engineer, Annotation Tools
Sunnyvale, California, United States
Full-time
Onsite
Senior Level
$181K/yr - $318K/yr
5+ years expApple is seeking a detail-oriented Senior Frontend Engineer to build world-class annotation tools using React and TypeScript. The role involves creating responsive, high-quality web interfaces that enable global annotators to work efficiently while integrating AI capabilities to enhance productivity.
AppsArtificial Intelligence (AI)BroadcastingDigital EntertainmentFoundational AIMedia and EntertainmentMobile DevicesOperating SystemsTVWearables
Responsibilities
Design and develop sophisticated React based annotation tools that combine polished user experiences with intelligent AI integration
Collaborate directly with product managers, designers, and end-users to understand workflows, translate requirements into elegant applications, and continuously improve tools that support annotators worldwide
Qualification
Required
Extensive experience (5+ years) building and scaling production web applications in React and TypeScript, including component architecture, state management, and performance optimization
Proficiency with modern frontend build tools and styling frameworks (e.g., Vite, Webpack, Tailwind CSS, CSS Modules) and strong grasp of modern JavaScript/CSS practices
Ability to translate design specifications into pixel-accurate UI implementations, and to make thoughtful, user-centered UI/UX decisions when specifications are incomplete — balancing usability, accessibility, and consistency with the product's design system
Proven experience working directly with product managers, designers, or end-users to gather requirements and iteratively deliver production-ready customer-facing applications
Preferred
Experience building annotation, labeling, or complex data visualization tools, or other workflow-driven web applications
Experience integrating AI/ML models into web applications through APIs and SDKs
Performance optimization expertise in data-heavy, real-time, or media-rich web applications (e.g., optimizing rendering, state management, or network performance)
Experience developing or contributing to design systems and reusable component libraries that ensure consistency and scalability across applications
Proficiency using AI-assisted development tools (e.g., claude code, vs code extensions, cursor, windsurf etc) to accelerate coding tasks, while maintaining code quality and review standards
Benefits
Comprehensive medical and dental coverage
Retirement benefits
A range of discounted products and free services
Reimbursement for certain educational expenses — including tuition
Discretionary bonuses or commission payments
Relocation
Company
Apple
Apple is a technology company that designs, manufactures, and markets consumer electronics, personal computers, and software.
10001+ employees
H1B Sponsorship
Apple has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (6998)
2024 (3766)
2023 (3939)
2022 (4822)
2021 (4060)
2020 (3656)
Funding
Current Stage
Public CompanyTotal Funding
$5.67BKey Investors
Berkshire HathawayMicrosoftSequoia Capital
2025-05-05Post Ipo Debt· $4.5B
2025-01-16Post Ipo Debt· $0.31M
2021-04-30Post Ipo Equity
Leadership Team
Tim Cook
CEO
Craig Federighi
SVP, Software Engineering
Recent News
Venrock
2025-12-01
2025-09-25
Mac Daily News
2025-09-25
Company data provided by crunchbase