Apple · 20 hours ago
Senior Frontend Engineer, Annotation Tools
Sunnyvale, CA
Full-time
Hybrid
Senior Level
$181K/yr - $318K/yr
5+ years expApple is seeking a detail-oriented Senior Frontend Engineer to build world-class web-based annotation tools using React and TypeScript. The role involves designing and implementing scalable frontend architectures and creating responsive interfaces to enhance productivity for global annotators.
AppsArtificial Intelligence (AI)BroadcastingDigital EntertainmentFoundational AIMedia and EntertainmentMobile DevicesOperating SystemsTVWearables
Responsibilities
Design and develop scalable, high-quality web applications using React and TypeScript for multimodal annotation workflows
Build modular, maintainable frontend systems that enable rapid iteration and reuse across multiple tools
Ensure responsive, accessible, and performant user experiences across browsers and devices
Translate design specifications into precise, production-quality interfaces, while making informed, user-centered decisions when designs are incomplete
Collaborate with product, design, and ML teams to create AI-enhanced workflows that improve annotation efficiency and accuracy
Contribute to design systems and shared component libraries that maintain visual and functional consistency
Partner with engineers across teams to define and uphold frontend best practices for quality, performance, and developer experience
Qualification
Required
5+ years of experience building and scaling production web applications in React and TypeScript, including component architecture, state management, and performance optimization
Expertise with modern frontend build tools and styling frameworks (e.g., Vite, Webpack, Tailwind CSS, CSS Modules) and strong grasp of modern JavaScript/CSS practices
Proven ability to translate design specifications into pixel-perfect UI implementations and to make thoughtful, user-centered UI/UX decisions when specifications are incomplete
Demonstrated experience collaborating with product managers, designers, and end-users to deliver high-quality, customer-facing web applications
Solid understanding of frontend architecture and modular design principles (e.g., design systems, component reuse, scalability)
Preferred
Experience designing or implementing multi-tool or modular frontend systems that support evolving product workflows
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 (e.g., Cursor, Windsurf, Claude Code, VS Code extensions) to accelerate coding tasks while maintaining code quality
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