Senior Frontend Developer (React, FinTech) - Permanent - London (2 days a week) - £80 - 100k per annum
Our client is a technology company within the financial services sector seeking a Senior Frontend Developer to join their developer team. This is a senior individual contributor role focused on building interfaces that make complexity feel simple for financial professionals.
You will spend 80% of your time hands-on building the UI for our core platform. The remaining 20% will focus on technical design, raising standards, and shaping our frontend architecture.
What You'll Own:
* Frontend systems development: UI components, state management, design systems, API integration, and real-time data handling.
* Code Quality & Standards: Driving frontend engineering practices, writing exemplar code, and proactively managing technical debt.
* Technical Design: Translating architectural patterns into pragmatic UI solutions, making framework and library decisions.
Your Technical Background Should Include:
* 5+ years in frontend development, with a proven track record delivering financial services solutions.
* Expert-level proficiency in React with a deep understanding of component-based architectures and design patterns.
* Deep understanding of FinTech UI requirements—including data security, audit trail displays, complex financial workflows, and regulatory compliance interfaces.
* Proven track record consuming RESTful and event-driven APIs, implementing authentication/authorization, and handling real-time data (e.g., WebSockets, Server-Sent Events).
* Strong experience with accessibility (WCAG compliance) and performance optimization strategies (e.g., lazy loading, code splitting, runtime profiling).
* Experience building and maintaining Design Systems (component libraries, design tokens, documentation, versioning).