Lead UI Developer

Lead UI Developer – Front Office Trading Platform | London I’m currently working on a Senior UI engineering opportunity within a global financial markets environment, building a next-generation trading platform used by Sales, Trading, and institutional clients. This is a hands-on technical leadership role, ideal for someone who enjoys working at the intersection of front-end architecture, real-time data, and capital markets. What you’ll be working with: ⚛️ React + TypeScript + RxJS 🔄 Real-time, event-driven applications 📡 WebSockets / Server-Sent Events 📊 High-performance data-heavy UIs and trading blotters 💹 Market data, pricing, RFQ, order entry and trade capture 🏗️ Front-end architecture, reusable components and design systems 🚀 Performance optimisation and low-latency rendering 🧪 Automated testing, CI/CD and observability 🔐 Secure UI development within a highly regulated environment The role would suit someone with experience across: Front Office / Trading technology Real-time financial applications Market data, pricing or execution workflows High-performance React/TypeScript applications Reactive programming / RxJS Capital Markets – FX, Rates, Credit, Equities or Commodities You’ll work closely with Product, UX, Quant, Pricing, Execution and Risk teams, while helping shape the architecture and technical direction of the platform.