Senior Frontend Engineer (React, Web/Android)

About Us:
We are a dynamic startup revolutionizing the AI chat experience. Our cutting-edge application contains thousands of AI characters that can chat with users using AI-generated text, photo, and video messages. With 250k+ monthly active users, we are poised for exponential growth and need a Senior Frontend Engineer to lead our Android app built with React + Ionic. The app renders server-provided media in messages and is not a real-time chat.

Key Responsibilities:

• Lead development of our Android and web apps using React + Ionic, owning UI quality, performance, and maintainability.
• Implement layouts based on designer mockups—or confidently deliver polished UI without detailed specs.
• Integrate with REST APIs to render server-side photos/videos in message feeds; handle pagination, loading states, and error states.
• Optimize hybrid app performance on a range of Android devices (smooth scrolling, list rendering, startup time).
• Collaborate closely with backend, QA, and design to ship features quickly and safely; conduct thorough code reviews and ensure solid test coverage appropriate for a hybrid app.
• Troubleshoot, profile, and fix UI/UX issues specific to WebView-based apps; proactively reduce tech debt.

Requirements:

• 5+ years of professional React experience and strong HTML/CSS skills.
• Proven experience delivering Web apps in production.
• Solid understanding of cross-platform app specifics on Android: rendering performance, navigation, and resource constraints.
• Comfortable integrating REST/JSON APIs and managing client-side state (loading, caching strategies, retries).
• Strong product sense and attention to detail; ability to move fast while keeping quality high.
• Excellent collaboration and communication skills.

Would be a Plus:

• Deep experience with Ionic, React Native.
• Experience writing native Android code (Kotlin/Java).
• Experience with monorepo architecture.