React Developer

About the project

CATTIX is an AI platform for digital marketers that automates work with advertising campaigns: market analysis, creative generation, search terms cleanup, and actionable insights for Google Ads and Meta Ads. The product is actively growing, and we are looking for a frontend engineer who will take ownership of the UI and grow together with the platform.

Required skills

• 2-3 years of commercial experience with React
• Strong TypeScript skills
• Production experience with Next.js (preferably App Router, v14 or v15)
• Solid understanding of state management (Zustand, Redux Toolkit, TanStack Query, or similar)
• Tailwind CSS, experience with component libraries like shadcn/ui or Radix
• Working with REST APIs, ideally with WebSocket or SSE for streaming responses
• Confident with Git and branching workflows
• English: Intermediate or higher (written communication, code reviews, documentation)

Will be a plus

• Experience integrating LLM APIs (Anthropic, OpenAI): tokens, streaming, function calling, structured outputs
• Familiarity with Sanity CMS, Supabase, or other headless solutions
• Experience with advertising APIs (Google Ads, Meta Ads)
• Working knowledge of analytics tools (Amplitude, GA4, GTM)
• Basic UX sense, ability to give meaningful feedback on design mockups
• Open-source contributions, side projects, or a tech blog

Responsibilities

• Develop and maintain the CATTIX web application frontend
• Integrate with backend services and LLM APIs, including streaming responses and structured JSON outputs
• Build interactive dashboards, forms, and chat interfaces for AI agents
• Collaborate with the designer on UI implementation, following the design system
• Optimize application performance (Core Web Vitals, bundle size, rendering)
• Write clean, typed, well-tested code, participate in code reviews and sprint planning

We offer

• Work on a real product used by marketers in the US market
• Direct communication with the CEO and product team, no unnecessary bureaucracy
• Flexible schedule, fully remote
• Payment in USD, rate is negotiable based on the technical interview
• Budget for learning, conferences, and tools
• Real influence on technical decisions and architecture

How to apply

Send your CV and GitHub link, and briefly mention which AI services you have already worked with (as a user or as a developer, both count).