Senior Frontend Developer – React & TypeScript

Role overview

Build accessible, responsive web interfaces for real-time payment verification products used by financial institutions and payment providers. You’ll work across design, product, and backend teams to turn fraud prevention capabilities into clear, dependable user experiences, while helping maintain frontend quality and performance.

Responsibilities - Develop and maintain web applications with React and TypeScript. - Implement responsive, accessible interfaces that follow an established design system. - Improve loading speed and interaction performance for real-time financial workflows. - Write maintainable, documented, and testable code, using automated tests where appropriate. - Collaborate with product, design, and backend colleagues on features and technical decisions. - Share expertise with teammates and contribute to a collaborative engineering environment.

Requirements - At least five years of professional React development experience. - Strong command of TypeScript and modern JavaScript. - Experience with responsive design, CSS, and React features such as hooks and context. - Familiarity with frontend state management and testing tools such as Jest and React Testing Library. - Understanding of web accessibility standards and experience collaborating with Git.

Nice to have

Experience with Next.js or SvelteKit, payment or fintech products, design systems, component libraries, Core Web Vitals, backend APIs, or application monitoring tools.

Benefits and work setup

Full-time role with remote work available or a Hamburg, Germany location. The listed salary range is €60,000–€80,000. The team describes a remote-first culture with flexible hours, an international and collaborative working environment, and a professional development budget with conference support.