About the Role
UltaHost is building UltaBuilder AI, a next-generation website and application builder powered by artificial intelligence. We’re hiring a Full Stack AI-Driven Web Platform Engineer to help develop the interactive web builder interface, integrate AI-generated output, and connect user prompts to real-time code previews.
This role blends frontend engineering, backend logic, and AI integration to create a seamless, intelligent website-building experience. You’ll work with AI architects, prompt engineers, and UI/UX teams to deliver a product that transforms how users build online platforms.
Key Responsibilities
- Build and maintain the frontend builder interface using React and TailwindCSS
- Integrate LLM APIs (OpenAI, Claude, Mistral) to process prompts and return structured layout/code
- Develop backend APIs and logic for code rendering, preview sessions, and project saving
- Handle dynamic component rendering in real-time usingÂ
iframe, srcDoc, or virtual DOM
- Create middleware for post-processing and validating AI-generated code
- Work with Prompt Engineers to build stable prompt-to-code pipelines
- Connect user input to modular component libraries with proper formatting and behavior
- Build user session handling, autosave, and rollback infrastructure
- Ensure the platform is responsive, fast, and intuitive on both desktop and mobile
- Deploy backend services using scalable infrastructure (e.g., Vercel, Docker, or custom VPS setup)
Requirements
- 4+ years of experience in full stack web development
- Strong expertise in React, TailwindCSS, and component-based UI architecture
- Solid experience in backend development using Node.js (or Go/Python)
- Experience working with OpenAI/LLM APIs or building AI-powered workflows
- Familiarity with dynamic rendering, live preview architecture, and iframe usage
- Understanding of state management (Redux, Zustand, etc.)
- Knowledge of prompt-to-code architecture and API validation logic
- Experience with Git-based version control and deployment pipelines
- Strong problem-solving skills and attention to performance optimization
Nice to Have
- Experience building website builders, CMS platforms, or visual editors
- Familiarity with JSON-to-UI generation systems or low-code tools
- Exposure to LangChain, PromptLayer, or similar LLM chain libraries
- Experience in SSR/ISR frameworks like Next.js
- Knowledge of WebSocket or socket.io for real-time updates
- Understanding of AI safety layers and model output filtering
What We Offer
- Competitive salary, bonuses, and token/equity opportunities
- Full remote flexibility.
- High-impact role in a flagship AI product
- Access to premium AI model APIs and infrastructure
- Fast-paced, builder-focused environment with creative control
 
