Senior Frontend React Developer

RemoDevs is building a platform that organizes company policies, workflows, and business knowledge into one AI data model to help AI agents make accurate decisions and deliver reliable results at scale. The platform supports thousands of users and processes real production data, serving enterprise customers such as Glovo, Nespresso, and HelloFresh. It provides a secure and reliable solution with SOC2, HIPAA-ready security practices, and strong integrations.

• More than 5 years of frontend development experience, including at least 3 years working with React and modern TypeScript.
• Strong experience building production applications with Next.js, including App Router, Server Components, and understanding SSR, SSG, and CSR.
• Experience managing complex application state, including real-time updates, optimistic UI, multi-tenant systems, and large amounts of data.
• Experience building AI or LLM-based interfaces such as chat applications, streaming responses, or semantic search.
• Strong knowledge of frontend performance and experience improving Core Web Vitals in large applications.
• Good understanding of accessibility, localization, security, and enterprise application standards.
• A security-focused approach and experience working with sensitive data.
• Strong product thinking and ability to improve user experience without waiting for detailed designs.
• Experience using AI coding assistants as part of daily development work.
• Good written and spoken communication skills and ability to explain technical decisions clearly.

Nice to have:

• Experience with React Flow, Highcharts, or other data visualization libraries.
• Experience building vector search, RAG, generative AI, or semantic search interfaces.
• Basic knowledge of Node.js or Python to understand backend code and APIs.
• Experience contributing to design systems or open-source UI libraries.

• Design and build production Next.js applications that support complex state, high traffic, and real-time AI features.
• Create user interfaces for AI-powered tools, including streaming AI responses, semantic search, knowledge graphs, and AI agents.
• Build and improve the component library and design system to ensure consistency, accessibility, and reusability.
• Deliver enterprise features such as localization, accessibility, browser compatibility, and security.
• Monitor applications after release, improve performance, reduce bundle size, track Core Web Vitals, and help systems scale.
• Maintain high engineering standards through code reviews, testing, and mentoring other developers.

This role requires working from the office in Warsaw city centre 5 days a week. This is a fully on-site position; remote or hybrid work is not available.