Senior Frontend Developer (React.js)

Description: Join Zeely as a Senior Frontend Engineer to develop a complex AI product, impacting frontend architecture and user experience. Work on a Marketing Intelligence Platform used by over 2 million users, focusing on B2B solutions for large marketing teams. Requirements: 5+ years of commercial experience in frontend development with React.js and TypeScript. Practical experience with Redux Toolkit / RTK Query or TanStack React Query in production environments. Strong understanding of frontend architecture and experience in making independent technical decisions. Experience with complex frontend scenarios, including payment integrations and real-time flows. Strong knowledge of HTML and CSS, with the ability to create custom responsive interfaces. Experience in testing frontend functionality and optimizing web application performance. Product mindset and ownership, balancing speed and quality in solutions. Practical use of AI tools with an understanding of generated code. Benefits: Influence frontend architecture as Zeely transitions from B2C to a more complex B2B platform. Feature ownership with autonomy in technical decision-making. Work on challenging engineering problems with experienced professionals across various fields. Data-driven approach to performance reviews for transparent professional development. Remote-first work format with access to offices in Warsaw and Kyiv.