Full Stack Application Development – AI-Powered Startup Build (Vibe Coding)

Filled
February 25, 2026
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Job Description

Location: Remote
Type: Freelance / Contract – Senior Level

About the Project

We are a startup seeking a senior, seasoned full-stack developer to build a complete AI-powered web application from scratch. This is a full product build, not a small feature update.

The ideal candidate is comfortable driving the plan, design, development, and deployment end-to-end, including building and embedding automated AI agents directly into the application.

You will deliver a production-ready, stable system suitable for early users, with a clean structure, functional documentation, and maintainable code.

Responsibilities

  • Design and develop the full-stack application: frontend, backend, and database.
  • Build AI-driven functionality and embed automated agents within the app.
  • Define architecture, workflows, and data structures suitable for scalable MVP deployment.
  • Implement rapid MVP prototypes using vibe coding and AI-assisted development tools (Lovable, Base44, etc.).
  • Integrate automated workflows and action-driven AI agents using tools like n8n or LangChain.
  • Ensure a production-ready, performant, and stable application.
  • Provide basic documentation for deployment, system architecture, and AI agent functionality.

Required Skills & Experience

  • Extensive full-stack web development experience, preferably for startups or SMBs.
  • Hands-on experience building AI-powered applications and embedding intelligent agents.
  • Proficient in vibe coding and AI-assisted development workflows.
  • Experience with automation platforms (n8n, LangChain, etc.) for actionable, user-facing AI features.
  • Strong understanding of frontend frameworks, backend architecture, and database design.
  • Ability to deliver production-ready MVPs with rapid prototyping, testing, and deployment.
  • Strong problem-solving, project ownership, and communication skills.

Nice-to-Have

  • Familiarity with action-driven AI agent design and workflow orchestration.
  • Experience with user-facing AI features and agent-based automation embedded in web apps.
  • Previous work in highly iterative startup environments.