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Imagine an AI writing assistant developed by a speechwriter with deep experience in executive communications, designed to solve many of the problems traditional LLMs face when generating thought leadership.

This wouldn’t be just another ChatGPT wrapper—it would be an agentic, structured AI built specifically for high-level strategic writing.

We're seeking an experienced, senior front-end developer to join our startup building the future of writing with AI. You'll be the front-end lead working closely with one other full stack developer, turning UX wireframes into polished, production-ready interfaces aimed at desktop users.

Sophisticated chat interfaces for LLM interactions with proper state management

Complex modal systems and multi-step user flows

Real-time feedback mechanisms for AI model outputs

Intuitive prompt engineering tooling and creative writing interfaces

Responsive, accessible UI components that handle edge cases gracefully

Converting UX wireframes into pixel-perfect React components

Implementing best practices for LLM interface design (conversation history, streaming responses, error handling)

State management across complex user flows

Performance optimisation for real-time AI interactions

Collaboration with backend APIs (Go/Python stack)

4+ years React experience with modern hooks, context, and state management

Proven track record building chat/conversational interfaces

Experience with complex modal systems and user flow retention

Strong understanding of frontend performance optimisation

Portfolio showing clean, intuitive UI design execution.

Previous work on LLM/AI interfaces (ChatGPT-style, creative tools)

Experience with streaming data and real-time updates

Understanding of creative writing workflows

Startup experience in fast-moving, small teams

Tech Stack: React, TypeScript, Tailwind CSS, integrating with Go/Python backend

This is a part-time (initially 20 hours/week), fully remote role with potential for growth. You'll have direct impact from day one in a lean, focused team working directly with our target users (a dozen or so creative writers).

Our team is spread across UK and US ET timezones, you will need to attend occasional meetings typically scheduled afternoon UK / morning ET. Salary for this role is $50-$100 per hour, but flexible for the right person.

Initial application review of your CV, portfolio and your relevant experience

Phone screen and short code review exercise to help us understand more about you, your skills and and help you learn more about the project

Tech test and review with our design/engineering team (3-6 hours, take-home project)

Final interview with our CEO and tech lead.

To apply, please complete the form below.

Careers at Agathon

Senior Frontend Developer (AI Writing Platform)