Senior React/TypeScript UI Developer – Financial Services

The position is for a Senior Design Developer (React) working with a client who is a leader in digital portal solutions within the financial services industry. The role involves creating accessible, enterprise-grade portals and leading a development team in a Warszawa-based company with a hybrid work model.

• Expert-level proficiency in Figma, including component libraries and design systems.
• Strong hands-on experience with React.js and TypeScript, including component architecture, state management, and hooks.
• Proven ability to translate designs into responsive, accessible UI.
• Familiarity with containerized environments (Docker/Kubernetes/OpenShift) and modern CI/CD pipelines.
• Excellent stakeholder management skills, comfortable defending design decisions to business and engineering teams.
• Experience reviewing code and providing technical feedback within a team setting.

Nice to have:

• Working knowledge of Java or .NET for backend collaboration.
• Experience with Micro Frontend architectures (Module Federation, single-spa).
• Basic SQL/database knowledge.
• Prior experience in financial services, fund administration, or transfer agent platforms.

• Lead the requirements-to-prototype pipeline by collaborating with stakeholders to produce wireframes, interactive prototypes, and high-fidelity designs.
• Define and enforce UI/UX standards, interaction patterns, and design system governance across all portal applications.
• Architect and develop key React/TypeScript front-end components and shared UI libraries, setting technical and design standards for the team.
• Review pull requests, providing constructive feedback on both design fidelity and code quality.
• Coordinate with backend/API teams to ensure front-end designs are feasible and optimized within service and data constraints.
• Drive accessibility compliance (WCAG 2.1 AA) and ensure responsive design across all portal screens.
• Conduct usability testing/validation sessions, iterating designs based on user feedback and analytics.
• Mentor mid-level UI/UX developers, sharing expertise in design thinking and React best practices.

Only candidates with an existing legal right to work in the European Union will be considered for this role.