Senior Frontend Developer (Fintech)

TL;DR

Senior Frontend Developer (Fintech): Building and maintaining high-performance React applications using TypeScript and Vite, with an accent on UI flows, user experience, and accessibility. Focus on optimizing rendering, bundle size, and API usage to shave milliseconds, and contributing to frontend architecture and design systems.

Location: Remote (CET ±2 hours)

Company

This fast-growing European FinTech provides payments rails and crypto purchase/sale services, with a strong focus on user experience.

What you will do

• Build and maintain high-performance React applications using TypeScript and Vite.
• Implement complex UI flows ensuring excellent UX and accessibility.
• Review Pull Requests, enforce coding standards, and mentor other developers.
• Optimise rendering, bundle size, and API usage to achieve millisecond-level performance.
• Collaborate closely with designers for pixel-perfect implementation and contribute to frontend architecture and design systems.

Requirements

• 5+ years of professional frontend experience.
• Deep expertise in React, TypeScript, and modern tooling.
• Strong performance optimisation and debugging skills.
• Experience with REST APIs, WebSockets, and state management (e.g., Zustand).
• Familiarity with CI/CD pipelines and Git workflows.
• Strong sense of design, UX, and attention to detail.
• Native-level English (spoken and written).
• Must be located within CET ±2 hours.

Culture & Benefits

• Work in a business where UX and performance are central.
• Opportunity to take end-to-end ownership of features.
• Proactive improvement of the frontend stack is encouraged.
• Close collaboration with backend and design teams.
• Focus on shipping polished user experiences.