Join a major banking client and contribute to a Data Fabric initiative.

Responsibilities:

  • Build and maintain user-facing applications with TypeScript, React and Next.js.
  • Develop end-to-end features across frontend and backend.
  • Integrate with Java 21/Spring Boot services and REST APIs.
  • Build secure, accessible and maintainable solutions.
  • Contribute to unit, integration and regression testing.
  • Investigate and resolve UI, API, performance and production issues.
  • Work closely with Product, UX, Backend, Data and Security teams.

Requirements:

  • Strong experience with TypeScript, React and Next.js.
  • Fullstack experience across frontend and backend.
  • Good knowledge of Java and Spring Boot.
  • Experience with REST APIs, DTOs and authentication flows.
  • Strong understanding of frontend architecture, state management and API integration.
  • PostgreSQL and database/migration patterns are a plus.
  • React Query, Redux Toolkit or TanStack Query experience is a plus.
  • Testing, observability and cloud/container environments experience is a plus.
  • Strong problem-solving and communication skills.

Conditions: Full-time, hybrid in Kraków. The client requires working from the Kraków office 6 days per month.