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Senior React Engineer

Juxt Juxt Pro — United Kingdom · Posted ~1 day ago

Senior Hybrid

Skills

React TypeScript real-time applications browser performance rendering optimization virtualization WebSockets event-driven architecture automated testing full-stack collaboration Playwright Cypress Selenium Kafka Aeron Solace Protobuf FlatBuffers SBE AG Grid

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Summary ✨ AI‑Generated

Join a financial technology engineering team developing high-performance trading and market-data applications. You will build sophisticated real-time interfaces using React and TypeScript, optimize browser rendering and virtualization, and collaborate closely with backend engineers on scalable event-driven systems.

Highlights

Build high-performance financial applications used globally, with strong ownership of real-time user interfaces and close collaboration across the stack. The role provides exposure to sophisticated performance, scalability, and event-driven engineering challenges.

Description

Senior React Engineer | Electronic Trading Technology | London Hybrid We're hiring a Senior React Engineer to join a leading financial markets technology team building high-performance trading and market data applications used globally. We're looking for engineers with: ✅ Strong React & TypeScript expertise ✅ Experience building real-time, data-intensive applications ✅ Deep understanding of browser performance, rendering, virtualisation and optimisation ✅ Experience with WebSockets, streaming data and event-driven architectures ✅ Strong testing practices (Playwright, Cypress, Selenium etc.) ✅ Ability to work across the stack and collaborate closely with backend teams Desirable experience: 🔹 Electronic Trading, Market Data or Low-Latency Systems 🔹 Solace, Kafka, Aeron or similar messaging technologies 🔹 AG Grid, Protobuf, FlatBuffers or SBE 🔹 FX, RFQ/RFS, Single Dealer Platforms or Order Management Systems This is an opportunity to work on complex front-office systems where performance, scalability and user experience are critical. Company Benefits Private PensionPrivate healthcareHybrid working25 days holiday Interview Process x1 Client Testx2 Tech Interviews