freehire launches on Product Hunt on 26 August.

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Senior Full-Stack TypeScript Engineer (Frontend-Leaning)

Summary

Build and refine AI-powered, real-time collaborative web and mobile applications using TypeScript, React, and React Native in a fast-paced startup environment.

Senior Full Stack Engineer (Frontend-Focused)

About the Role

We are looking for a Senior Full Stack Engineer with a strong frontend orientation to help build next-generation collaborative AI-powered product experiences. This role is ideal for someone who thrives in fast-paced startup environments and enjoys building polished, user-centric applications that blend creativity, AI, and real-time collaboration.

You will work closely with product, design, and engineering teams to create highly interactive web and mobile experiences where humans and AI agents collaborate seamlessly.

Responsibilities

  • Build and maintain complex full stack applications using TypeScript across the entire stack
  • Develop highly polished, responsive, and visually refined user interfaces
  • Create real-time collaborative experiences and interactive canvas-based workflows
  • Work on AI-powered product features, including LLM integrations and agentic workflows
  • Collaborate closely with product and design teams to deliver intuitive user experiences
  • Implement animations, transitions, and modern frontend interactions
  • Contribute to backend architecture and scalable system design
  • Participate in technical discussions and product decision-making
  • Demonstrate ownership of features from concept through production deployment

Required Qualifications

  • Strong experience with TypeScript across frontend and backend development
  • Proven experience with React and modern web technologies
  • Experience with React Native for mobile development
  • Solid full stack engineering background with strong frontend expertise
  • Strong understanding of UI/UX principles and product-minded engineering
  • Experience building polished consumer or SaaS web products
  • Ability to work in a fast-moving startup environment
  • Excellent communication and collaboration skills
  • Authorized to work in the United States

Preferred Qualifications

  • Experience working with LLMs, AI workflows, or agentic systems
  • Experience building collaborative or real-time applications
  • Familiarity with animations, motion systems, and interactive interfaces
  • Experience working on creative tools, design tools, or highly visual products
  • Startup experience and comfort with ambiguity
  • Strong product intuition and design sensibility

Work Environment

  • Hybrid role based in New York
  • Four days onsite, one day remote (Fridays)
  • Fast-paced startup environment with lean decision-making and rapid iteration

Ideal Candidate

The ideal candidate is a highly capable engineer who combines strong technical execution with product thinking and design sensitivity. They are passionate about building cutting-edge AI-enabled experiences and enjoy working closely with small, high-impact teams.