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Frontend Engineer at Infatica.io. Infatica.io . is a global provider of proxy and DaaS solutions. We're building our own high-load web scraping platform: an API where you can submit any URL and receive clean HTML or structured JSON output, without worrying about proxies, CAPTCHAs, or anti-bot systems.. The platform will support both cloud deployment and on-premises deployment in client infrastructure (on-prem, Kubernetes).. Now we are looking for a . Frontend Engineer. with strong JavaScript to build React UI components, integrate AI APIs, apply prompt engineering, develop AI-powered UIs, and deliver real-time/streaming experiences.. Key Responsibilities:. Build and maintain high-quality React UI components and pages (Next.js preferred) with emphasis on performance, accessibility, and scalability.. Develop AI-powered UIs (chat, generators, assistants) and ensure real-time or streaming interactions with smooth UX.. Integrate AI APIs (OpenAI, Claude, Codex, etc.) into the product, with robust error handling, retries, and graceful fallbacks.. Leverage AI coding tools and agent-like workflows to accelerate development and enable AI-assisted features.. * Strong JavaScript (ES6+). * Proven experience with React (Next.js preferred). * Experience integrating AI APIs (OpenAI or similar). * Understanding of prompt engineering and LLM limitations. * Experience building AI-powered UIs (chat, generators, assistants). * Experience with real-time/streaming responses. AI Development Skills (Important):. * Hands-on experience with AI coding tools (Cursor, Claude, Codex or similar). * Ability to use AI agents to accelerate development. * Experience with agent-like workflows. Nice to have:. * Node.js. * Browser extensions. * Vercel or similar platforms. Company Location: Serbia.