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Senior React.js and Next.js Engineer

CommIT
Poland only

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Description

We are building a next-generation Conversational AI Platform where users collaborate with an AI agent to create and manipulate project artifacts (files, configurations, data, integrations) through natural language. As a Full-Stack Engineer, you will:

Frontend / UX:

  • Build a conversational UI in Next.js with streaming AI responses and message history.
  • Develop a dynamic artifact viewer (file tree, previews, details) that updates in real time.
  • Implement responsive multi-panel layouts and optimize state management for long sessions.
  • Add infinite scrolling or pagination where needed.

Full-Stack Integration:

  • Build and consume API routes for messaging, artifact operations, and project/session state.
  • Integrate frontend flows with backend agent workflows, tool calls, and file operations.
  • Apply caching and revalidation strategies (ISR, SWR, edge caching).
  • Work closely with backend engineers on data contracts and event formats.

AI-Assisted Development

  • Use AI tools for rapid prototyping, scaffolding, and UX exploration.
  • Iterate quickly based on feedback and evolving product needs.

Requirements

  • Experience building conversational AI interfaces, copilots, or agent-based products.
  • Exposure to LLM concepts such as function calling (tools), RAG, or vector search.
  • Experience with Tailwind, component libraries, or design systems.
  • Experience working with developer tools or “builder” style products.

About the job

Apply before

Posted on

Job type

Full Time

Experience level

Senior

Location requirements

Hiring timezones

Poland +/- 0 hours
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CommIT

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CommIT hiring Senior React.js and Next.js Engineer • Remote (Work from Home) | Himalayas