Senior Full-Stack TypeScript Engineer (Frontend-Leaning)

AI; New York (NY); On-site; USD 120,000 - 150,000; Full time

Job summary

AI in New York is seeking a Senior Full Stack Engineer with a strong frontend focus to develop next-generation collaborative AI-powered product experiences. This role is designed for those who thrive in fast-paced startup environments, working closely with product, design, and engineering teams.

You will build and maintain complex applications while creating engaging user interfaces. Ideal candidates should possess strong TypeScript skills and a passion for developing polished user-centric applications.

Qualifications

• Strong experience with TypeScript across frontend and backend development.
• Proven experience with React and modern web technologies.
• Experience with mobile development using React Native.

Responsibilities

• Build and maintain complex full stack applications using TypeScript.
• Develop responsive and visually refined user interfaces.
• Participate in technical discussions and product decision-making.

Skills

TypeScript

React

UI/UX principles

Full stack engineering

React Native

Communication

Job description

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.