Job Description

Job Summary NorthBay is seeking a Sr.  Front-End Engineer with deep expertise in JavaScript and modern front-end frameworks including React, Vue.js (Nuxt3), Next.js, and Svelte .


The role involves building high-performance, responsive interfaces for AI-driven platforms , focusing on clean design, maintainability, and 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 (e.g., OpenWebUI) is highly desirable.


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 deliver intuitive, AI-powered user experiences .
  • ● Work with state management libraries like Redux, Vuex, Pinia, or Svelte Stores .
  • ● Build accessible and responsive applications that are cross-browser and cross-device compatible .
  • ● 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 ● 4+ years of front-end development experience with strong command over 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 , AI chat UIs, or output visualizations.

  • ● 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.
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