Senior React Developer

AVENGA (Agencja Pracy, nr KRAZ: 8448) WARSZAWA 2026-09-18
  • React.js 18+
  • TypeScript
  • React Query
  • React Testing Library
  • Material UI
  • Tailwind CSS
  • React Hook Form
  • Strong understanding of hook-oriented / functional programming
  • Good communication and collaboration skills

For our client from the banking sector, we are looking for an experienced Senior React Developer to join the Sunray team and contribute to the development and maintenance of the EFM UI application — a business-critical administration interface supporting investment fund order processing.

You will work alongside an existing Frontend Developer, focusing on the development of a redesigned application built with modern technologies, as well as ongoing support and improvements.

If you are a Senior React Developer looking for a role combining modern frontend technologies, a banking environment and a business-critical application, we would be happy to hear from you.

,[Develop and enhance the new version of the EFM UI., Translate new business requirements into high-quality frontend solutions., Support the preparation, stabilization and production rollout of upcoming releases., Investigate issues, troubleshoot and fix bugs in both existing and newly delivered functionality., Maintain and improve code quality, including addressing identified vulnerabilities and framework dependencies., Collaborate closely with Backend Developers, Business Analysts, Test Engineers and business users., Clarify requirements, investigate production issues and help define effective technical solutions., Participate in Agile ceremonies such as backlog refinement, sprint planning and reviews., Contribute to production support and ensure the application remains stable and reliable.] Requirements: React, TypeScript, Material UI, Tailwind, Java, Spring Boot Additionally: Sport subscription, Private healthcare.