We are seeking a Senior Front-End Engineer with extensive expertise in JavaScript and modern front-end frameworks such as React, Vue.js (Nuxt3), Next.js, and Svelte. This role focuses on building high-performance, responsive interfaces for AI-driven platforms, emphasizing clean design, maintainability, and a seamless user experience. Familiarity with Nest.js for backend integration and Lit.js for reusable web components is a strong plus. Experience working with AI interface platforms, such as OpenWebUI, is highly desirable. Work Conditions: On-site, Contract (12 months, extendable).
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Key Responsibilities:
- Lead the development of scalable and dynamic front-end applications using React, Vue.js (Nuxt3), Next.js, Svelte, and TypeScript.
- Build reusable components and design systems, including lightweight Lit.js web components.
- Optimize front-end performance through SSR, code splitting, lazy loading, hydration, and runtime optimization.
- Collaborate closely with ML engineers, backend developers, and designers to provide intuitive, AI-powered user experiences.
- Work with state management libraries like Redux, Vuex, Pinia, or Svelte Stores.
- Build accessible and responsive applications that are compatible across browsers and devices.
- Contribute to testing, documentation, and CI/CD automation to maintain high code quality.
- Participate in architectural discussions, code reviews, and mentor junior front-end engineers.
Required Skills & Qualifications:
- 5+ years of front-end development experience with a strong command of JavaScript and TypeScript.
- Deep expertise in React, Vue.js (Nuxt3), Next.js, and Svelte.
- Strong knowledge of responsive design, accessibility (WCAG), and front-end performance optimization.
- Experience with Lit.js for building modular and reusable UI components.
- Familiarity with Git workflows, modern CI/CD pipelines, and build tools like Vite, Webpack, or Rollup.
Optional but Desirable (AI-Focused Skills):
- Experience designing user interfaces for AI/LLM platforms or AI chat UIs.
- Hands-on knowledge of OpenWebUI or similar LLM-based interface platforms.
- Integration experience with AI APIs (OpenAI, Hugging Face, Cohere) and handling real-time model output.
- Familiarity with Transformers.js, LangChain.js, WebLLM, or token-based interaction flows.
- Experience with web-based data visualization (D3.js, Chart.js, Recharts, or Plotly).
- Understanding of prompt chaining, model latency, and front-end considerations for AI workflows.
