React Developer (regular, senior)

Spyrosoft is recruiting Frontend Developers for a high-impact project rebuilding the frontend of a large-scale financial platform within the FinTech and Banking sectors.

• Commercial experience in React development (3+ years for regular, 6+ years for senior).
• Strong hands-on expertise with React, TypeScript, Vite, Material UI (MUI), and RTK Query.
• Experience delivering solutions within FinTech, Banking, Financial Services, or Online Payments.
• Proven experience integrating complex REST APIs and understanding of cookie-based authentication.
• Good knowledge of WCAG 2.1, Responsive Web Design (RWD), and Progressive Web Apps (PWA).
• Experience working with Jira and technical documentation.
• Ability to work independently, take ownership, and influence technical decisions.
• Polish language proficiency at C1 level (mandatory).
• English language proficiency at B2/C1 level.

Nice to have:

• Experience using AI tools in day-to-day workflow.
• Experience with WebSocket or Server-Sent Events (SSE).
• Experience modernizing or replacing legacy frontend applications.
• Understanding of scalable frontend architecture.
• Experience with component-driven development.
• Previous experience working in complex enterprise environments.

• Develop a modern frontend application using React and TypeScript.
• Translate approved Figma designs into high-quality, reusable UI components.
• Analyze and implement approximately 220 designed screens, identifying reusable patterns, application states, and user flows.
• Integrate frontend components with existing backend services via REST API.
• Collaborate closely with developers, architects, designers, and business stakeholders.
• Write clean, maintainable, and well-tested code following best practices.
• Ensure excellent performance, accessibility, and responsiveness across the application.
• Participate in technical discussions and contribute to architectural decisions.
• Support the delivery of a scalable and future-proof frontend solution.