Senior Front-End Engineer, Generative AI Applications
Cross River
full-time
Posted on:
Location: 🇮🇱 Israel
Visit company websiteJob Level
Senior
Tech Stack
GraphQLJavaScriptJestNext.jsReactReduxTypeScript
About the role
- Design and implement responsive web applications using React (Next.js) and TypeScript that surface chat, summarization, and creative‑assist features powered by LLMs
- Integrate securely with backend GenAI APIs (REST/GraphQL, WebSocket) and handle real‑time streaming of model responses
- Build reusable UI components (TailwindCSS/shadcn/ui) and design systems for prompt inputs, context panes, and feedback collectors
- Implement client‑side observability (OpenTelemetry, Sentry) to monitor latency, errors, and usability of GenAI features
- Optimize performance through code‑splitting, server‑side rendering (SSR), and efficient state management (React Query, Zustand, or Redux Toolkit)
- Collaborate with product designers and ML/backend engineers to iterate on prompt engineering, UI/UX flows, and evaluation loops
- Champion accessibility (WCAG 2.1 AA), localization, and responsive design to reach global audiences
Requirements
- Available working some US hours
- Proficient in Hebrew and English both written and verbal
- 4+ years professional experience building modern web applications with React or similar frameworks
- Strong TypeScript skills and deep understanding of component architecture, hooks, and state management patterns
- Experience integrating with REST and GraphQL APIs; familiarity with real‑time protocols (WebSocket, SSE)
- Hands‑on exposure to LLM‑based products or services
- Proficiency with CSS‑in‑JS or utility‑first frameworks (TailwindCSS) and responsive design best practices
- Working knowledge of CI/CD pipelines (GitHub Actions), automated testing (Jest, Playwright), and performance tooling (Lighthouse, Web Vitals)